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Trans,trans,cis-1,5,9-cyclododecatriene is a colorless liquid with a non-aromatic structure. It is hazardous as it is toxic in skin absorption and ingestion and can cause irritation to the eyes and skin as well. It is used as an intermediate in the manufacture of other chemicals. #ginormous #plussign #nonaromatic #and #hazardous #stayawayfromthisone #sigmaaldrich #chemistry #chemicals #moleculeoftheday #science #laboratory #aldrich #c97482.

Trans,trans,cis-1,5,9-cyclododecatriene is a colorless liquid with a non-aromatic structure. It is hazardous as it is toxic in skin absorption and ingestion and can cause irritation to the eyes and skin as well. It is used as an intermediate in the manufacture of other chemicals. #ginormous #plussign #nonaromatic #and #hazardous #stayawayfromthisone #sigmaaldrich #chemistry #chemicals #moleculeoftheday #science #laboratory #aldrich #c97482 ...

Happy Halloween! In honor of this spooktacular holiday, today's molecule is Cadaverine. As its name suggests, it is a chemical released during a body's decomposition and is partially responsible for the smell of dead bodies. Frankenstein would have had to find a way to withstand the odors as he went about building his monster with body parts and mysterious chemicals. #HappyHalloween #spooktacular #ew #whatsmells #its #Frankenstein #ded #sigmaaldrich #chemistry #chemicals #moleculeoftheday #science #laboratory #sigma #33211.

Happy Halloween! In honor of this spooktacular holiday, today's molecule is Cadaverine. As its name suggests, it is a chemical released during a body's decomposition and is partially responsible for the smell of dead bodies. Frankenstein would have had to find a way to withstand the odors as he went about building his monster with body parts and mysterious chemicals. #HappyHalloween #spooktacular #ew #whatsmells #its #Frankenstein #ded #sigmaaldrich #chemistry #chemicals #moleculeoftheday #science #laboratory #sigma #33211 ...

Warfarin is an anticoagulant that treats or prevents blood clots, and thus lessens the risk of stroke, heart attack, deep vein thrombosis, and pulmonary embolism. Sold as Coumadin among other names, it is one of the most affordable and important medications in the world. In the complex biology of blood clotting, various coagulation proteins must be activated by the

Warfarin is an anticoagulant that treats or prevents blood clots, and thus lessens the risk of stroke, heart attack, deep vein thrombosis, and pulmonary embolism. Sold as Coumadin among other names, it is one of the most affordable and important medications in the world. In the complex biology of blood clotting, various coagulation proteins must be activated by the "vitamin K cycle". Warfarin is an inhibitor of vitamin K epoxide reductase, an enzyme in this cycle, and thus slows down the clotting process. The proper dosage of warfarin varies greatly with individuals and with diet, so patients starting the medication must have their blood tested for several days to determine values called PT/INR (prothrombin time/international normalized ratio). Overdose of warfarin can lead to major bleeding, although other life threatening side effects are rare. The history of anticoagulants goes back to the 1920s, when it was noticed that livestock were bleeding to death after consuming hay from moldy clovers. By 1940, biochemist Karl Paul Link and his students at the University of Wisconsin identified the offending compound as dicoumarol, which arose from the natural product coumarin, but only in spoiled clovers. While dicoumarol was marketed as a drug, Link investigated more potent analogs as rodenticides, including warfarin (named from "Wisconsin Alumni Research Foundation" and "coumarin"). Warfarin was approved as a rodenticide in 1948, but turned out superior to dicoumarol for medical uses as well. Human use of warfarin was approved in 1954, with U.S. President Eisenhower becoming one of the earliest patients to be treated with the medicine. #forbiddensnacks #chemistry #organicchemistry #inorganicchemistry #chemistrylab #chemistry_lab #chemistrylife #chemistrylove #chemistryfun #chemistryisfun #chemistrydaily #chemistrynotes #chemistryeducation #chemistryclass #chemistryteacher #chemistrystudent #quimica #chemie #chemical #chemicals #molecule #molecules #moleculeoftheday #warfarin #coumadin #coagulation #bloodclot #biology #biologystudent #biologystudents ...

Vantablack is a material made from carbon nanotubes that absorbs 99.965% of visible light, making it the darkest material ever created. In comparison, typical black paint only absorbs 80% of light. Vantablack was created by UK company Surrey NanoSystems, and the name refers to

Vantablack is a material made from carbon nanotubes that absorbs 99.965% of visible light, making it the darkest material ever created. In comparison, typical black paint only absorbs 80% of light. Vantablack was created by UK company Surrey NanoSystems, and the name refers to "vertically aligned nanotube arrays". The way that carbon nanotubes are grown on a substrate in a highly aligned manner causes light to become trapped in the molecular tubes and never escape. In the picture above with Vantablack grown on aluminum foil, the startling black void is equally as crinkled as the surrounding region. True Vantablack is very expensive to grow and cannot be painted or sprayed. However, there are several materials adopting the same brand name that can be painted or sprayed. They are made from non-aligned nanotubes (Vantablack S) or traditional solvent-based pigments (Vantablack VBx), and still absorb at least 99% of light. These dark materials have many technological, military, and artistic uses. #forbiddensnacks #chemistry #organicchemistry #inorganicchemistry #chemistrylab #chemistry_lab #chemistrylife #chemistrylove #chemistryfun #chemistryisfun #chemistrydaily #chemistrynotes #chemistryeducation #chemistryclass #chemistryteacher #chemistrystudent #quimica #chemie #chemical #chemicals #molecule #molecules #moleculeoftheday #vantablack #vanta #blackpaint #paintitblack #nanotubes #carbonnanotubes #nanoscience Requested by @michiefang ...

Dicyclopentadiene (DCP) is found in the form of an endo or exo isomer with a molecular geometry that is found in norbornane systems. It is commercially available in >95% endo form as most of the applications of DCP involve the endo isomer. Dicyclopentadiene diepoxide also known as Dicyclopentadiene dioxide plays a role as an intermediate for epoxy resins. It is used as plasticizer and protective coatings. It is also applicable as a rubber additive and adhesives, which is used at high temperatures. #doyousee #theairplane #no? #justme? #plasticizers #protectivecoatings #rubberadditives #everydaychemistry #sigmaaldrich #chemistry #chemicals #moleculeoftheday #science #laboratory #aldrich #d81009.

Dicyclopentadiene (DCP) is found in the form of an endo or exo isomer with a molecular geometry that is found in norbornane systems. It is commercially available in >95% endo form as most of the applications of DCP involve the endo isomer. Dicyclopentadiene diepoxide also known as Dicyclopentadiene dioxide plays a role as an intermediate for epoxy resins. It is used as plasticizer and protective coatings. It is also applicable as a rubber additive and adhesives, which is used at high temperatures. #doyousee #theairplane #no ? #justme ? #plasticizers #protectivecoatings #rubberadditives #everydaychemistry #sigmaaldrich #chemistry #chemicals #moleculeoftheday #science #laboratory #aldrich #d81009 ...

1,3-Butadiene diepoxide (2,2'-Bioxirane/Diepoxybutane) is a colorless liquid at room temperature and miscible in water. It has various applications such as a curing agent for polymers, a chemical intermediate, and a crosslinking agent for textile fabrics. It also prevents microbial spoilage. #colorlessliquid #at #roomtemperature #prevents #microbial #spoilage #sigmaaldrich #chemistry #chemicals #moleculeoftheday #science #laboratory #aldrich #202533.

1,3-Butadiene diepoxide (2,2'-Bioxirane/Diepoxybutane) is a colorless liquid at room temperature and miscible in water. It has various applications such as a curing agent for polymers, a chemical intermediate, and a crosslinking agent for textile fabrics. It also prevents microbial spoilage. #colorlessliquid #at #roomtemperature #prevents #microbial #spoilage #sigmaaldrich #chemistry #chemicals #moleculeoftheday #science #laboratory #aldrich #202533 ...

Nitric acid is the very corrosive and strongly oxidizing mineral acid with formula HNO3. It is a major industrial chemical made by oxidizing ammonia to nitrogen oxides, which are absorbed into water. There are three types of nitric acid. 1) Lab grade

Nitric acid is the very corrosive and strongly oxidizing mineral acid with formula HNO3. It is a major industrial chemical made by oxidizing ammonia to nitrogen oxides, which are absorbed into water. There are three types of nitric acid. 1) Lab grade "concentrated nitric acid": 68% HNO3, which is constant-boiling at 120 °C and thus cannot be increased further through evaporation. It is a colorless liquid that turns yellow quickly due to decomposition to NO2 gas. 2) Red fuming nitric acid (RFNA): around 86% HNO3, 13% dissolved nitrogen oxides, and 1% water. It is the most dangerously toxic kind of nitric acid. 3) White fuming nitric acid (WFNA): at least 95% HNO3 and little nitrogen oxides or water. This category includes the pure anhydrous HNO3 which has a boiling point of 83 °C. Nitric acid reacts exothermically with almost everything and may ignite organic materials. It dissolves most metals -- a common demonstration is the reaction of concentrated HNO3 with a penny, which produces billows of red NO2 gas and leaves behind a hot green solution of copper nitrate (and no penny). Of the 50 million tons of nitric acid produced annually, about 80% is converted to the fertilizer ammonium nitrate. Other major products are nitro compounds, such as the explosives nitroglycerin and TNT. The extra-concentrated forms RFNA and WFNA are used as hypergolic rocket propellants. #forbiddensnacks #chemistry #organicchemistry #inorganicchemistry #chemistrylab #chemistry_lab #chemistrylife #chemistrylove #chemistryfun #chemistryisfun #chemistrydaily #chemistrynotes #chemistryeducation #chemistryclass #chemistryteacher #chemistrystudent #quimica #chemie #chemical #chemicals #molecule #molecules #moleculeoftheday #nitric #nitricacid #fumingnitricacid #redfumingnitricacid #ammoniumnitrate #nitrogendioxide #nitrogen ...

Naturally occurring and a key ingredient in my morning coffee, Caffeine can be a stimulant to the nervous system and may be associated with osteoporosis, cardiovascular risk, arrhythmia and gastrointestinal disturbances. #ineed #a #caffeineiv #togetthrough #thisweek #sigmaaldrich #chemistry #chemicals #moleculeoftheday #science #laboratory #sial #c0750.

Naturally occurring and a key ingredient in my morning coffee, Caffeine can be a stimulant to the nervous system and may be associated with osteoporosis, cardiovascular risk, arrhythmia and gastrointestinal disturbances. #ineed #a #caffeineiv #togetthrough #thisweek #sigmaaldrich #chemistry #chemicals #moleculeoftheday #science #laboratory #sial #c0750 ...

Chromium(III) chloride is a chromium salt that appears brilliant purple in the anhydrous form, and dark green in the hexahydrate form. It can be synthesized by direct chlorine gas treatment of chromium metal, and has many uses in the preparation of other chromium compounds. A reagent combination of CrCl3 with a reducing agent (like lithium aluminum hydride or zinc dust) produces the species CrCl2, which reduces alkyl halides to alkanes, and alkynes selectively to cis-alkenes. Chromium is an element necessary for life in trace amounts, but is dangerous in larger amounts. Chromium(III) salts are toxic in general, but much less so than chromium(VI) compounds that are highly carcinogenic. #forbiddensnacks #chemistry #organicchemistry #inorganicchemistry #chemistrylab #chemistry_lab #chemistrylife #chemistrylove #chemistryfun #chemistryisfun #chemistrydaily #chemistrynotes #chemistryeducation #chemistryclass #chemistryteacher #chemistrystudent #quimica #chemie #chemical #chemicals #molecule #molecules #moleculeoftheday #chromium #chrome #chromiumchloride #chemistrymajor #chemistrymajors #chemistrystudents #chemistryteachers.

Chromium(III) chloride is a chromium salt that appears brilliant purple in the anhydrous form, and dark green in the hexahydrate form. It can be synthesized by direct chlorine gas treatment of chromium metal, and has many uses in the preparation of other chromium compounds. A reagent combination of CrCl3 with a reducing agent (like lithium aluminum hydride or zinc dust) produces the species CrCl2, which reduces alkyl halides to alkanes, and alkynes selectively to cis-alkenes. Chromium is an element necessary for life in trace amounts, but is dangerous in larger amounts. Chromium(III) salts are toxic in general, but much less so than chromium(VI) compounds that are highly carcinogenic. #forbiddensnacks #chemistry #organicchemistry #inorganicchemistry #chemistrylab #chemistry_lab #chemistrylife #chemistrylove #chemistryfun #chemistryisfun #chemistrydaily #chemistrynotes #chemistryeducation #chemistryclass #chemistryteacher #chemistrystudent #quimica #chemie #chemical #chemicals #molecule #molecules #moleculeoftheday #chromium #chrome #chromiumchloride #chemistrymajor #chemistrymajors #chemistrystudents #chemistryteachers ...

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#Parathion, also called #parathion-ethyl or diethyl parathion and locally known as “#Folidol

#Parathion , also called #parathion -ethyl or diethyl parathion and locally known as “#Folidol ", is an #organophosphate #insecticide and acaricide. It was originally developed by IG Farben in the 1940s. It is highly toxic to non-target organisms, including humans, so its use has been banned or restricted in most countries. The basic structure is shared by parathion methyl. #chemistry #chemists #chemlab #moleculelove #moleculeoftheday #molecule #lovechemistry #chemistrylove #lovescience #instafact ...

K19 Dye is an amphiphilic ruthenium sensitizer with a good molar extinction coefficient which remains stable under thermal stress and light soaking. It can be synthesized by forming a reaction mixture of 4,4'-Bis(p-hexyloxystyryl)-2,2'-bipyridine, dichloro(p-cymene)ruthenium(II) dimer, and 4,4’-dicarboxylic acid-2,2’-bipyridine. It shows an overall power conversion efficiency (PCE) of 11% and can be used as active material in dye sensitized solar cells (DSSCs). #shows #overall #powerconversionefficiency #PCE #sigmaaldrich #chemistry #chemicals #moleculeoftheday #science #laboratory #aldrich #791415.

K19 Dye is an amphiphilic ruthenium sensitizer with a good molar extinction coefficient which remains stable under thermal stress and light soaking. It can be synthesized by forming a reaction mixture of 4,4'-Bis(p-hexyloxystyryl)-2,2'-bipyridine, dichloro(p-cymene)ruthenium(II) dimer, and 4,4’-dicarboxylic acid-2,2’-bipyridine. It shows an overall power conversion efficiency (PCE) of 11% and can be used as active material in dye sensitized solar cells (DSSCs). #shows #overall #powerconversionefficiency #PCE #sigmaaldrich #chemistry #chemicals #moleculeoftheday #science #laboratory #aldrich #791415 ...

Phosphorus tribromide is the inorganic compound PBr3, a colorless fuming liquid that is synthesized from red phosphorus and bromine. It is a reagent for conversion of alcohols into alkyl bromides. This reaction is usually taught in introductory organic chemistry and proceeds through the Sn2 mechanism. PBr3 is also used for the Hell-Volhard-Zelinsky reaction where a carboxylic acid is brominated at the alpha carbon. PBr3 is extremely corrosive due to forming hydrobromic acid on contact with moisture, and should be handled carefully in a fume hood. #forbiddensnacks #chemistry #organicchemistry #inorganicchemistry #chemistrylab #chemistry_lab #chemistrylife #chemistrylove #chemistryfun #chemistryisfun #chemistrydaily #chemistrynotes #chemistryeducation #chemistryclass #chemistryteacher #chemistrystudent #quimica #chemie #chemical #chemicals #molecule #molecules #moleculeoftheday #phosphorus #bromine #bromide #chemistrymajor #chemistrymajors #chemistrystudents #chemistryteachers.

Phosphorus tribromide is the inorganic compound PBr3, a colorless fuming liquid that is synthesized from red phosphorus and bromine. It is a reagent for conversion of alcohols into alkyl bromides. This reaction is usually taught in introductory organic chemistry and proceeds through the Sn2 mechanism. PBr3 is also used for the Hell-Volhard-Zelinsky reaction where a carboxylic acid is brominated at the alpha carbon. PBr3 is extremely corrosive due to forming hydrobromic acid on contact with moisture, and should be handled carefully in a fume hood. #forbiddensnacks #chemistry #organicchemistry #inorganicchemistry #chemistrylab #chemistry_lab #chemistrylife #chemistrylove #chemistryfun #chemistryisfun #chemistrydaily #chemistrynotes #chemistryeducation #chemistryclass #chemistryteacher #chemistrystudent #quimica #chemie #chemical #chemicals #molecule #molecules #moleculeoftheday #phosphorus #bromine #bromide #chemistrymajor #chemistrymajors #chemistrystudents #chemistryteachers ...

Repost @luminous_lab - tag someone who knows this molecule 😜
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Happy Birthday Mr. Hans Christian Gram! Thank you for discovering methyl violet for bacterial staining 🦠🔬
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#grampositive #bacteria #hanschristiangram #happybirthday #microbiology #science #blender3d #blenderscience #chemistry #molecules #sciart #scicomm #lovechemistry #lovescience #beautifulchemistry #moleculeoftheday #moleculemonday.

Repost @luminous_lab - tag someone who knows this molecule 😜 ・・・ Happy Birthday Mr. Hans Christian Gram! Thank you for discovering methyl violet for bacterial staining 🦠🔬 ▫️ ▫️ ▫️ #grampositive #bacteria #hanschristiangram #happybirthday #microbiology #science #blender3d #blenderscience #chemistry #molecules #sciart #scicomm #lovechemistry #lovescience #beautifulchemistry #moleculeoftheday #moleculemonday ...

Happy #moleculemonday with @ministryofchemistry ・・・
#Thienothiophene usually refers to any of three structurally related #derivatives of thiophene with the formula C6H4S2. In order of importance, they are: thieno(3,2-b)thiophene, thieno(2,3-b)thiophene, and thieno(3,4-b)thiophene. Other isomers feature S(IV) and are less stable. Thieno[2,3-b]thiophene was the first member of the series to be isolated. It was obtained in very low yield upon heating #citric acid, a source of a six-carbon linear chain, with #P4S10. More efficient syntheses of this and the other two stable thienothiophenes involve cyclization reactions of substituted #thiophenes.

Three thienothiophenes, being #aromatic and #bicyclic, are often compared with #napthalene. They are the topic of academic research. They have no commercial applications nor are they or their derivatives found naturally.

Further reading:

Cinar, M. E.; Ozturk, T. (2015).

Happy #moleculemonday with @ministryofchemistry ・・・ #Thienothiophene usually refers to any of three structurally related #derivatives of thiophene with the formula C6H4S2. In order of importance, they are: thieno(3,2-b)thiophene, thieno(2,3-b)thiophene, and thieno(3,4-b)thiophene. Other isomers feature S(IV) and are less stable. Thieno[2,3-b]thiophene was the first member of the series to be isolated. It was obtained in very low yield upon heating #citric acid, a source of a six-carbon linear chain, with #P4S10 . More efficient syntheses of this and the other two stable thienothiophenes involve cyclization reactions of substituted #thiophenes . Three thienothiophenes, being #aromatic and #bicyclic , are often compared with #napthalene . They are the topic of academic research. They have no commercial applications nor are they or their derivatives found naturally. Further reading: Cinar, M. E.; Ozturk, T. (2015). "Thienothiophenes, Dithienothiophenes, and Thienoacenes: Syntheses, Oligomers, Polymers, and Properties". Chemical Reviews. 115: 3036–3140. Suggested by @sebastienking - thanks!! #chemistry #chemists #chemlab #moleculelove #moleculeoftheday #molecule #lovechemistry #chemistrylove #lovescience #instafact ...

Pillola #15
Scopolamina 
La molecola di oggi è strettamente correlata con un caso di omicidio di inizio secolo, quello che vede coinvolto il Dottor H.H.Crippen, medico omeopata. Sembra che la moglie di Crippen sia scomparsa in circostanze misteriose e che il dottore sia fuggito dall’Inghilterra via nave con la sua amante, mentre la polizia scopriva i resti di un torso occultati nella sua dimora, con alte concentrazioni di scopolamina nel sangue.

Oltre ad essere il primo caso risolto grazie alla radio (il capitano della nave su cui si era imbarcato Crippen fu avvertito via radio del fuggitivo a bordo) si tratta di un aneddoto che ci consente di introdurre queste particolare molecola.

La scopolamina è un alcaloide allucinogeno, ottenuto da piante della famiglia delle Solanaceae, come l'Hyoscyamus niger o le specie del genere Datura, tra cui lo stramonio o “erba del diavolo”. Una volta veniva usato, in combinazione con la morfina, come anestetico-analgesico durante il parto. Una proprietà insolita della scopolamina è quella di donare uno stato di coscienza privo di memoria, proprietà per cui è stata usata (senza troppo successo) come siero della verità, uso ripreso poi nel film “Dove osano le aquile”. Come l'atropina, la scopolamina blocca infatti in modo reversibile i recettori colinergici e in particolare impedisce l'interazione tra acetilcolina e i recettori muscarinici. 
La scopolamina è stata usata per molti anni come farmaco per contrastare il mal di mare.

P.s. sembra che il torso trovato nella dimora del Dottor Crippen fosse un torso maschile. Ai tempi fu comunque considerato colpevole della morte della moglie e impiccato 
Bibliografia:
J. Emsley, Molecules of Murder, Cambridge, Royal Society of Chemistry, 2008, pp 23-45
F. Khakpai, M. Nasehi, A. Haeri-Rohani, A. Eidi and M. R. Zarrindast, Behavioural Brain Research, 2012, 231, 1-10
D. D. Potter, C. D. Pickles, R. C. Roberts and M. D. Rugg, Biol. Psychol., 2000, 52, 37–52 
Per approfondimenti maggiori: 
http://www.chm.bris.ac.uk/motm/scopolamine/scopolaminejs.htm #chimicainpillole #chimica #moleculeoftheday #molecoladelgiorno #alcaloidi.

Pillola #15 Scopolamina La molecola di oggi è strettamente correlata con un caso di omicidio di inizio secolo, quello che vede coinvolto il Dottor H.H.Crippen, medico omeopata. Sembra che la moglie di Crippen sia scomparsa in circostanze misteriose e che il dottore sia fuggito dall’Inghilterra via nave con la sua amante, mentre la polizia scopriva i resti di un torso occultati nella sua dimora, con alte concentrazioni di scopolamina nel sangue. Oltre ad essere il primo caso risolto grazie alla radio (il capitano della nave su cui si era imbarcato Crippen fu avvertito via radio del fuggitivo a bordo) si tratta di un aneddoto che ci consente di introdurre queste particolare molecola. La scopolamina è un alcaloide allucinogeno, ottenuto da piante della famiglia delle Solanaceae, come l'Hyoscyamus niger o le specie del genere Datura, tra cui lo stramonio o “erba del diavolo”. Una volta veniva usato, in combinazione con la morfina, come anestetico-analgesico durante il parto. Una proprietà insolita della scopolamina è quella di donare uno stato di coscienza privo di memoria, proprietà per cui è stata usata (senza troppo successo) come siero della verità, uso ripreso poi nel film “Dove osano le aquile”. Come l'atropina, la scopolamina blocca infatti in modo reversibile i recettori colinergici e in particolare impedisce l'interazione tra acetilcolina e i recettori muscarinici. La scopolamina è stata usata per molti anni come farmaco per contrastare il mal di mare. P.s. sembra che il torso trovato nella dimora del Dottor Crippen fosse un torso maschile. Ai tempi fu comunque considerato colpevole della morte della moglie e impiccato Bibliografia: J. Emsley, Molecules of Murder, Cambridge, Royal Society of Chemistry, 2008, pp 23-45 F. Khakpai, M. Nasehi, A. Haeri-Rohani, A. Eidi and M. R. Zarrindast, Behavioural Brain Research, 2012, 231, 1-10 D. D. Potter, C. D. Pickles, R. C. Roberts and M. D. Rugg, Biol. Psychol., 2000, 52, 37–52 Per approfondimenti maggiori: http://www.chm.bris.ac.uk/motm/scopolamine/scopolaminejs.htm #chimicainpillole #chimica #moleculeoftheday #molecoladelgiorno #alcaloidi ...