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Methyl L-prolinate hydrochloride

Also known as: L-Proline methyl ester hydrochloride, H-Pro-OMe.HCl, Methyl (2S)-2-pyrrolidinecarboxylate hydrochloride, (S)-proline methyl ester hydrochloride, Methyl L-prolinate hydrochloride (1:1), Proline methyl ester hydrochloride, H-L-PRO-OME HCL, MFCD00012708

Methyl L-prolinate hydrochloride (CAS 2133-40-6) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C6H12ClNO2 and a molecular weight of 165.62 g/mol. Key properties include a melting point of 69-71ºC, a boiling point of 169.9ºC at 760 mmHg, a density of 1.055g/cm3 and a flash point of 56.5ºC. It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation and H319 — Causes serious eye irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
2133-40-6
Jingsj CID
J-37255-4
Molecular Formula
C6H12ClNO2
Molecular Weight
165.62 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point69-71ºC
Boiling Point169.9ºC at 760 mmHg
Density1.055g/cm3
Flash Point56.5ºC
Exact Mass165.055649
PSA38.33000
LogP1.04220
Vapor Pressure0.135mmHg at 25°C
Refractive Index-31.5 ° (C=1, H2O)

GHS Safety & Compliance

IrritantSignal word: Warning
  • H315 — Causes skin irritation
  • H319 — Causes serious eye irritation

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 Methyl L-prolinate hydrochloride?

The CAS number of Methyl L-prolinate hydrochloride is 2133-40-6.

What are the molecular formula and molecular weight of Methyl L-prolinate hydrochloride?

Methyl L-prolinate hydrochloride has molecular formula C6H12ClNO2 and molecular weight 165.62 g/mol.

Is Methyl L-prolinate hydrochloride hazardous?

Methyl L-prolinate hydrochloride has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation.

What are the upstream and downstream products of Methyl L-prolinate hydrochloride?

For Methyl L-prolinate hydrochloride, Upstream Products: (S)-1-Benzyl 2-methyl pyrrolidine-1,2-dicarboxylate, Methanol, L-Proline; Downstream Products: L-Prolinamide hydrochloride, N-tert-Butoxycarbonyl-L-proline methyl ester, L-Proline.

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

Last updated:

How to cite: Jingsj. "Methyl L-prolinate hydrochloride (CAS 2133-40-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-37255-4 (accessed 2026-11-09).

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