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Cycloheptene is a 7-membered cycloalkene with a flash point of −6.7 °C. It is a raw material in organic chemistry and a monomer in polymer synthesis. Cycloheptene can exist as either the cis - or the trans -isomer.
Dihydrotachysterol (DHT) is a synthetic vitamin D analog activated in the liver that does not require renal hydroxylation like vitamin D 2 (ergocalciferol) and vitamin D 3 (cholecalciferol). DHT has a rapid onset of action (2 hours), a shorter half-life, and a greater effect on mineralization of bone salts than does vitamin D. [ 1 ]
In organic chemistry, hexene is a hydrocarbon with the chemical formula C 6 H 12.The prefix "hex" is derived from the fact that there are 6 carbon atoms in the molecule, while the "-ene" suffix denotes that there is an alkene present—two carbon atoms are connected via a double bond.
pure osmium at 20 °C (22.587 g/cm 3) [25] 140.5 M: pure copper at 25 °C (8.93 g/cm 3) 10 3: kM: 10 4: 24 kM: helium in the solar core (150 g/cm 3 ⋅ 65%) [26] 10 5: 10 6: MM: 10 7: 10 8: 122.2 MM: nuclei in a white dwarf from a 3 M ☉ progenitor star (10 6.349 g/cm 3) [27] 10 9: GM: 10 10: 10 11: 10 12: TM: 10 13: 10 14: 10 15: PM: 10 16: ...
2,5-Dimethylhexane; 3,3-Dimethylhexane; 3,4-Dimethylhexane [Wikidata This page was last edited on 27 April 2022, at 16:52 (UTC). Text is available under the ...
It can be prepared by base-catalyzed isomerization of 2,3-dimethyl-1-butene. [2] Another route involves direct dimerization of propylene. [3] It can also be produced by photolysis of tetramethylcyclobutane-1,3-dione. [4]
Heptanone may refer to the following ketones with seven carbon atoms the formula C 7 H 14 O: . 2-Heptanone (Methyl amyl ketone) . 5-Methyl-2-hexanone (Methyl isoamyl ketone); 4-Methyl-2-hexanone (Methyl 2-methylbutyl ketone)
A practical route to this cation employs PCl 5 as the oxidant. [8] CHT behaves as a diene in Diels–Alder reactions, for example with maleic anhydride: [9] Many metal complexes of cycloheptatriene are known, including Cr(CO) 3 (C 7 H 8) [10] and cycloheptatrienemolybdenum tricarbonyl. [11] Structure of Mo(C 7 H 8)(CO) 3.