(3R,7aR)-3-(tert-butyl)-1-hydroxy-7a-vinyltetrahydro-3H,5H-pyrrolo[1,2-c]oxazol-5-one

(3R,7aR)-3-(叔丁基)-1-羟基-7a-乙烯基四氢-3H,5H-吡咯并[1,2-c]噁唑-5-酮

Also known as: Rolapitant Intermediate 1, (3R,7aR)-1-Hydroxy-3-(2-methyl-2-propanyl)-7a-vinyltetrahydro-5H-pyrrolo[1,2-c][1,3]oxazol-5-one, (3R,7aR)-3-(1,1-dimethylethyl)-7a-ethenyltetrahydro-1-hydroxy-3H,5H-pyrrolo[1,2-c]oxazol-5-one, rolapitant intermediate

(3R,7aR)-3-(tert-butyl)-1-hydroxy-7a-vinyltetrahydro-3H,5H-pyrrolo[1,2-c]oxazol-5-one (CAS 1214741-21-5) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C12H19NO3 and a molecular weight of 225.284 g/mol. It is also known as Rolapitant Intermediate 1, (3R,7aR)-1-Hydroxy-3-(2-methyl-2-propanyl)-7a-vinyltetrahydro-5H-pyrrolo[1,2-c][1,3]oxazol-5-one and (3R,7aR)-3-(1,1-dimethylethyl)-7a-ethenyltetrahydro-1-hydroxy-3H,5H-pyrrolo[1,2-c]oxazol-5-one. Key properties include a boiling point of 348.9±42.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 164.8±27.9 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
1214741-21-5
Jingsj CID
J-1526990-2
Molecular Formula
C12H19NO3
Chinese Name
(3R,7aR)-3-(叔丁基)-1-羟基-7a-乙烯基四氢-3H,5H-吡咯并[1,2-c]噁唑-5-酮
Molecular Weight
225.284 g/mol
Category
Ketones
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point348.9±42.0 °C at 760 mmHg
Density1.2±0.1 g/cm3
Flash Point164.8±27.9 °C

Frequently Asked Questions

What is the CAS number of (3R,7aR)-3-(tert-butyl)-1-hydroxy-7a-vinyltetrahydro-3H,5H-pyrrolo[1,2-c]oxazol-5-one?

The CAS number of (3R,7aR)-3-(tert-butyl)-1-hydroxy-7a-vinyltetrahydro-3H,5H-pyrrolo[1,2-c]oxazol-5-one is 1214741-21-5.

What are the molecular formula and molecular weight of (3R,7aR)-3-(tert-butyl)-1-hydroxy-7a-vinyltetrahydro-3H,5H-pyrrolo[1,2-c]oxazol-5-one?

(3R,7aR)-3-(tert-butyl)-1-hydroxy-7a-vinyltetrahydro-3H,5H-pyrrolo[1,2-c]oxazol-5-one has molecular formula C12H19NO3 and molecular weight 225.284 g/mol.

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

Last updated:

How to cite: Jingsj. "(3R,7aR)-3-(tert-butyl)-1-hydroxy-7a-vinyltetrahydro-3H,5H-pyrrolo[1,2-c]oxazol-5-one (CAS 1214741-21-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1526990-2 (accessed 2026-10-24).

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