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(R,E)-4-((1R,3aS,7aR,E)-4-((E)-2-((3S,5R)-3,5-bis(tert-butyldimethylsilyloxy)-2-methylenecyclohexylidene)ethylidene)-7a-methyloctahydro-1H-inden-1-yl)-1-cyclopropylpent-2-en-1-one

钙泊三醇中间体-9

Also known as: (2E,4R)-4-[(1R,3aS,4E,7aR)-4-[(2E)-2-[(3S,5R)-3,5-bis[[(tert-butyl)dimethylsilyl]oxy]-2-methylenecyclohexylidene]ethylidene]octahydro-7a-methyl-1H-inden-1-yl]-1-cyclopropyl-2-penten-1-one, (1S,3R,20R)-bis(tert-butyldimethylsilyloxy)-20-(3'-cyclopropyl-3'-oxyprop-1'(E)-enyl)-9,10-secopregna-5(E),7(E),10(19)-triene, (1S,3R,5E,7E,22E)-1,3-bis{[dimethyl(2-methyl-2-propanyl)silyl]oxy}-26,27-cyclo-9,10-secocholesta-5,7,10,22-tetraen-24-one, (1a,3b,5E,7E,22E)-24-cyclopropyl-1,3-bis[[(1,1-dimethylethyl)dimethylsilyl]oxy]-9,10-secochola-5,7,10(19),22-tetraen-24-one, Calcipotriol Impurity 11, (5E)-1,3-bis-O-(tert-butyldimethylsilyl)-24-oxo-calcipotriene

(R,E)-4-((1R,3aS,7aR,E)-4-((E)-2-((3S,5R)-3,5-bis(tert-butyldimethylsilyloxy)-2-methylenecyclohexylidene)ethylidene)-7a-methyloctahydro-1H-inden-1-yl)-1-cyclopropylpent-2-en-1-one (CAS 112849-17-9) is a compound in the Alcohols category listed in the Jingsj chemical database. It has the molecular formula C39H66O3Si2 and a molecular weight of 639.110 g/mol. It is also known as (2E,4R)-4-[(1R,3aS,4E,7aR)-4-[(2E)-2-[(3S,5R)-3,5-bis[[(tert-butyl)dimethylsilyl]oxy]-2-methylenecyclohexylidene]ethylidene]octahydro-7a-methyl-1H-inden-1-yl]-1-cyclopropyl-2-penten-1-one, (1S,3R,20R)-bis(tert-butyldimethylsilyloxy)-20-(3'-cyclopropyl-3'-oxyprop-1'(E)-enyl)-9,10-secopregna-5(E),7(E),10(19)-triene and (1S,3R,5E,7E,22E)-1,3-bis{[dimethyl(2-methyl-2-propanyl)silyl]oxy}-26,27-cyclo-9,10-secocholesta-5,7,10,22-tetraen-24-one. Key properties include a boiling point of 628.2±55.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 277.1±27.0 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
112849-17-9
Jingsj CID
J-1057285-8
Molecular Formula
C39H66O3Si2
Chinese Name
钙泊三醇中间体-9
Molecular Weight
639.110 g/mol
Category
Alcohols
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point628.2±55.0 °C at 760 mmHg
Density1.0±0.1 g/cm3
Flash Point277.1±27.0 °C

Frequently Asked Questions

What is the CAS number of (R,E)-4-((1R,3aS,7aR,E)-4-((E)-2-((3S,5R)-3,5-bis(tert-butyldimethylsilyloxy)-2-methylenecyclohexylidene)ethylidene)-7a-methyloctahydro-1H-inden-1-yl)-1-cyclopropylpent-2-en-1-one?

The CAS number of (R,E)-4-((1R,3aS,7aR,E)-4-((E)-2-((3S,5R)-3,5-bis(tert-butyldimethylsilyloxy)-2-methylenecyclohexylidene)ethylidene)-7a-methyloctahydro-1H-inden-1-yl)-1-cyclopropylpent-2-en-1-one is 112849-17-9.

What are the molecular formula and molecular weight of (R,E)-4-((1R,3aS,7aR,E)-4-((E)-2-((3S,5R)-3,5-bis(tert-butyldimethylsilyloxy)-2-methylenecyclohexylidene)ethylidene)-7a-methyloctahydro-1H-inden-1-yl)-1-cyclopropylpent-2-en-1-one?

(R,E)-4-((1R,3aS,7aR,E)-4-((E)-2-((3S,5R)-3,5-bis(tert-butyldimethylsilyloxy)-2-methylenecyclohexylidene)ethylidene)-7a-methyloctahydro-1H-inden-1-yl)-1-cyclopropylpent-2-en-1-one has molecular formula C39H66O3Si2 and molecular weight 639.110 g/mol.

Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "(R,E)-4-((1R,3aS,7aR,E)-4-((E)-2-((3S,5R)-3,5-bis(tert-butyldimethylsilyloxy)-2-methylenecyclohexylidene)ethylidene)-7a-methyloctahydro-1H-inden-1-yl)-1-cyclopropylpent-2-en-1-one (CAS 112849-17-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1057285-8 (accessed 2026-10-25).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.