rac 6-Chloro-1,4-dihydro-4-(1-pentynyl)-4-(trifluoromethyl)-2H-3,1-benzoxazin-2-one
rac 6-氯-1,4-二氢-4-(1-戊炔基)-4-(三氟甲基)-2H-3,1-苯并恶嗪-2-酮
Also known as: Efavirenz Impurity F, Efavirenz Pentyne Analog (Racemate), Efavirenz pentyne analog, 6-Chloro-4-(pent-1-ynyl)-4-(trifluoromethyl)-2H-3,1-benzoxazin-2-one, rac 6-Chloro-1,4-dihydro-4-(1-pentynyl)-4-(trifluoromethyl)-2H-3,1-benzoxazin-2-one
rac 6-Chloro-1,4-dihydro-4-(1-pentynyl)-4-(trifluoromethyl)-2H-3,1-benzoxazin-2-one (CAS 205755-86-8) is a compound in the Ketones 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 Impurity F, Efavirenz Pentyne Analog (Racemate) and Efavirenz pentyne analog. Key properties include a boiling point of 331.3±42.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 154.2±27.9 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 205755-86-8
- Jingsj CID
- J-1939577-1
- Molecular Formula
- C14H11ClF3NO2
- Chinese Name
- rac 6-氯-1,4-二氢-4-(1-戊炔基)-4-(三氟甲基)-2H-3,1-苯并恶嗪-2-酮
- Molecular Weight
- 317.691 g/mol
- Category
- Ketones
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 331.3±42.0 °C at 760 mmHg |
|---|---|
| Density | 1.4±0.1 g/cm3 |
| Flash Point | 154.2±27.9 °C |
Frequently Asked Questions
What is the CAS number of rac 6-Chloro-1,4-dihydro-4-(1-pentynyl)-4-(trifluoromethyl)-2H-3,1-benzoxazin-2-one?
The CAS number of rac 6-Chloro-1,4-dihydro-4-(1-pentynyl)-4-(trifluoromethyl)-2H-3,1-benzoxazin-2-one is 205755-86-8.
What are the molecular formula and molecular weight of rac 6-Chloro-1,4-dihydro-4-(1-pentynyl)-4-(trifluoromethyl)-2H-3,1-benzoxazin-2-one?
rac 6-Chloro-1,4-dihydro-4-(1-pentynyl)-4-(trifluoromethyl)-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. "rac 6-Chloro-1,4-dihydro-4-(1-pentynyl)-4-(trifluoromethyl)-2H-3,1-benzoxazin-2-one (CAS 205755-86-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1939577-1 (accessed 2026-10-25).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.