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(4R,12aS)-3,4,12,12a-Tetrahydro-4-methyl-7-(phenylmethoxy)-2H-pyrido[1',2':4,5]pyrazino[2,1-b][1,3]oxazine-6,8-dione

(4R,12aS)-3,4,12,12a-四氢-4-甲基-7-(苯甲氧基)-2H-吡啶并[1',2':4,5]吡嗪并[2,1-b][1,3]噁嗪-6,8-二酮

Also known as: (4R,12aS)-7-(Benzyloxy)-4-methyl-3,4,12,12a-tetrahydro-2H-pyrido[1',2':4,5]pyrazino[2,1-b][1,3]oxazine-6,8-dione, (4R,12aS)-7-(Benzyloxy)-4-methyl-3,4-dihydro-2H-[1,3]oxazino[3,2-d]pyrido[1,2-a]pyrazine-6,8(12H,12aH)-dione, Dolutegravir intermediate, Intermediate of Dolutegravir, 2H-Pyrido[1',2':4,5]pyrazino[2,1-b][1,3]oxazine-6,8-dione, 3,4,12,12a-tetrahydro-4-methyl-7-(phenylmethoxy)-, (4R,12aS)-

(4R,12aS)-3,4,12,12a-Tetrahydro-4-methyl-7-(phenylmethoxy)-2H-pyrido[1',2':4,5]pyrazino[2,1-b][1,3]oxazine-6,8-dione (CAS 1206102-09-1) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C19H20N2O4 and a molecular weight of 340.373 g/mol. It is also known as (4R,12aS)-7-(Benzyloxy)-4-methyl-3,4,12,12a-tetrahydro-2H-pyrido[1',2':4,5]pyrazino[2,1-b][1,3]oxazine-6,8-dione, (4R,12aS)-7-(Benzyloxy)-4-methyl-3,4-dihydro-2H-[1,3]oxazino[3,2-d]pyrido[1,2-a]pyrazine-6,8(12H,12aH)-dione and Dolutegravir intermediate. Key properties include a boiling point of 577.2±50.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 302.9±30.1 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
1206102-09-1
Jingsj CID
J-993029-2
Molecular Formula
C19H20N2O4
Chinese Name
(4R,12aS)-3,4,12,12a-四氢-4-甲基-7-(苯甲氧基)-2H-吡啶并[1',2':4,5]吡嗪并[2,1-b][1,3]噁嗪-6,8-二酮
Molecular Weight
340.373 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point577.2±50.0 °C at 760 mmHg
Density1.3±0.1 g/cm3
Flash Point302.9±30.1 °C

Frequently Asked Questions

What is the CAS number of (4R,12aS)-3,4,12,12a-Tetrahydro-4-methyl-7-(phenylmethoxy)-2H-pyrido[1',2':4,5]pyrazino[2,1-b][1,3]oxazine-6,8-dione?

The CAS number of (4R,12aS)-3,4,12,12a-Tetrahydro-4-methyl-7-(phenylmethoxy)-2H-pyrido[1',2':4,5]pyrazino[2,1-b][1,3]oxazine-6,8-dione is 1206102-09-1.

What are the molecular formula and molecular weight of (4R,12aS)-3,4,12,12a-Tetrahydro-4-methyl-7-(phenylmethoxy)-2H-pyrido[1',2':4,5]pyrazino[2,1-b][1,3]oxazine-6,8-dione?

(4R,12aS)-3,4,12,12a-Tetrahydro-4-methyl-7-(phenylmethoxy)-2H-pyrido[1',2':4,5]pyrazino[2,1-b][1,3]oxazine-6,8-dione has molecular formula C19H20N2O4 and molecular weight 340.373 g/mol.

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

Last updated:

How to cite: Jingsj. "(4R,12aS)-3,4,12,12a-Tetrahydro-4-methyl-7-(phenylmethoxy)-2H-pyrido[1',2':4,5]pyrazino[2,1-b][1,3]oxazine-6,8-dione (CAS 1206102-09-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-993029-2 (accessed 2026-10-23).

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