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(4S)-6-Chloro-4-[(E)-2-cyclopropylvinyl]-4-(trifluoromethyl)-1,4-dihydro-2H-3,1-benzoxazin-2-one

依非韦伦杂质B

Also known as: Efavirenz Related Compound B, (E)-Dihydro Efavirenz, (4S)-6-Chloro-4-[(1E)-2-cyclopropylethenyl]-1,4-dihydro-4-(trifluoromethyl)-2H-3,1-benzoxazin-2-one, Efavirenz IP Impurity B, Efavirenz ethene analogue, SR 695

(4S)-6-Chloro-4-[(E)-2-cyclopropylvinyl]-4-(trifluoromethyl)-1,4-dihydro-2H-3,1-benzoxazin-2-one (CAS 440124-96-9) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C14H11ClF3NO2 and a molecular weight of 317.691 g/mol. It is also known as Efavirenz Related Compound B, (E)-Dihydro Efavirenz and (4S)-6-Chloro-4-[(1E)-2-cyclopropylethenyl]-1,4-dihydro-4-(trifluoromethyl)-2H-3,1-benzoxazin-2-one. Key properties include a boiling point of 322.0±42.0 °C at 760 mmHg, a density of 1.6±0.1 g/cm3 and a flash point of 148.5±27.9 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
440124-96-9
Jingsj CID
J-1527984-6
Molecular Formula
C14H11ClF3NO2
Chinese Name
依非韦伦杂质B
Molecular Weight
317.691 g/mol
Category
Organic Compounds
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point322.0±42.0 °C at 760 mmHg
Density1.6±0.1 g/cm3
Flash Point148.5±27.9 °C

Frequently Asked Questions

What is the CAS number of (4S)-6-Chloro-4-[(E)-2-cyclopropylvinyl]-4-(trifluoromethyl)-1,4-dihydro-2H-3,1-benzoxazin-2-one?

The CAS number of (4S)-6-Chloro-4-[(E)-2-cyclopropylvinyl]-4-(trifluoromethyl)-1,4-dihydro-2H-3,1-benzoxazin-2-one is 440124-96-9.

What are the molecular formula and molecular weight of (4S)-6-Chloro-4-[(E)-2-cyclopropylvinyl]-4-(trifluoromethyl)-1,4-dihydro-2H-3,1-benzoxazin-2-one?

(4S)-6-Chloro-4-[(E)-2-cyclopropylvinyl]-4-(trifluoromethyl)-1,4-dihydro-2H-3,1-benzoxazin-2-one has molecular formula C14H11ClF3NO2 and molecular weight 317.691 g/mol.

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

Last updated:

How to cite: Jingsj. "(4S)-6-Chloro-4-[(E)-2-cyclopropylvinyl]-4-(trifluoromethyl)-1,4-dihydro-2H-3,1-benzoxazin-2-one (CAS 440124-96-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1527984-6 (accessed 2026-10-26).

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