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D-Proline

Also known as: H-D-Pro-OH, D-Pyrrolidine-2-carboxylic acid, (R)-Pyrrolidine-2-carboxylic acid, D-Pro, (R)-Proline, D-(+)-Proline

D-Proline (CAS 344-25-2) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C5H9NO2 and a molecular weight of 115.131 g/mol. Key properties include a melting point of 223ºC, a boiling point of 252.2±33.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 106.3±25.4 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
344-25-2
Jingsj CID
J-17376-2
Molecular Formula
C5H9NO2
Molecular Weight
115.131 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point223ºC
Boiling Point252.2±33.0 °C at 760 mmHg
Density1.2±0.1 g/cm3
Flash Point106.3±25.4 °C
Exact Mass115.063332
PSA49.33000
LogP-0.57
Vapor Pressure0.0±1.1 mmHg at 25°C
Refractive Index1.487

Customs & Trade Information

HS Code2933990090
Summary2933990090. heterocyclic compounds with nitrogen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

Frequently Asked Questions

What is the CAS number of D-Proline?

The CAS number of D-Proline is 344-25-2.

What are the molecular formula and molecular weight of D-Proline?

D-Proline has molecular formula C5H9NO2 and molecular weight 115.131 g/mol.

What are the upstream and downstream products of D-Proline?

For D-Proline, Upstream Products: N-Benzyloxycarbonyl-D-proline, (2R)-octan-2-ol, DL-Proline; Downstream Products: N-(tert-Butoxycarbonyl)-L-prolinamide, Boc-D-proline, (S)-1-Benzyl-3-hydroxypiperidine.

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

Last updated:

How to cite: Jingsj. "D-Proline (CAS 344-25-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-17376-2 (accessed 2026-11-09).

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