Methyl (R)-(-)-2-pyrrolidinone-5-carboxylate

Also known as: (-)-D-PYROGLUTAMIC ACID METHYL ESTER, (D)-PYROGLUTAMIC ACID METHYL ESTER, (R)-PYROGLUTAMIC ACID METHYL ESTER, METHYL (R)-(+)-2-PYRROLIDONE-5-CARBOXYLATE, METHYL (R)-2-PYRROLIDINE-5-CARBOXYLATE, Methyl (R)-(-)-2-pyrrolidinone, Methyl (R)-2-pyrrolidone-5-carboxylate, Methyl 5-oxo-D-prolinate, D-Proline, 5-oxo-, methyl ester, Methyl D-pyroglutaMate, (R)-Methyl 5-oxopyrrolidine-2-carboxylate

Methyl (R)-(-)-2-pyrrolidinone-5-carboxylate (CAS 64700-65-8) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C6H9NO3 and a molecular weight of 143.141 g/mol. Key properties include a boiling point of 304.7±35.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 138.1±25.9 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 64700-65-8
Jingsj CID: J-1021052-3
Molecular Formula: C₆H₉NO₃
Molecular Weight: 143.141 g/mol
Category: Organic Acids
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	304.7±35.0 °C at 760 mmHg
Density	1.2±0.1 g/cm3
Flash Point	138.1±25.9 °C
Exact Mass	143.058243
PSA	55.40000
LogP	-1.92
Vapor Pressure	0.0±0.6 mmHg at 25°C
Refractive Index	1.465
Storage Conditions	2-8°C

Customs & Trade Information

HS Code	2933790090
Summary	2933790090. other lactams. VAT:17.0%. Tax rebate rate:9.0%. . MFN tariff:9.0%. General tariff:20.0%

Frequently Asked Questions

What is the CAS number of Methyl (R)-(-)-2-pyrrolidinone-5-carboxylate?

The CAS number of Methyl (R)-(-)-2-pyrrolidinone-5-carboxylate is 64700-65-8.

What are the molecular formula and molecular weight of Methyl (R)-(-)-2-pyrrolidinone-5-carboxylate?

Methyl (R)-(-)-2-pyrrolidinone-5-carboxylate has molecular formula C6H9NO3 and molecular weight 143.141 g/mol.

What are the upstream and downstream products of Methyl (R)-(-)-2-pyrrolidinone-5-carboxylate?

For Methyl (R)-(-)-2-pyrrolidinone-5-carboxylate, Downstream Products: D-Pyroglutamic acid, (5R)-5-(bromomethyl)pyrrolidin-2-one, (R)-(-)-5-(Hydroxymethyl)-2-pyrrolidinone.

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

Last updated: 8/21/2026

How to cite: Jingsj. "Methyl (R)-(-)-2-pyrrolidinone-5-carboxylate (CAS 64700-65-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1021052-3 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.