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Boc-4-oxo-L-proline methyl ester

Also known as: Boc-4-oxo-Pro-OMe, N-Boc-4-oxo-L-proline methyl ester, Boc-L-Pro(4-keto)-OMe, BOC-4-OXO-PRO-OME, BOC-4-OXO-L-PROLINE METHYL ESTER, BOC-GAMMA-KETO-L-PROLINE METHYL ESTER, BOC-L-PRO(4-O)-OME, BOC-L-PRO(4-OXO)-OME, BOC-PRO-(4-KETO)-OME, N-alpha-t-Butyloxycarbonyl-4-oxo-L-proline methyl ester, (S)-1-tert-Butyl 2-methyl 4-oxopyrrolidine-1,2-dicarboxylate, 1-tert-butyl 2-methyl (2S)-4-oxopyrrolidine-1,2-dicarboxylate, 1-O-tert-butyl 2-O-methyl (2S)-4-oxopyrrolidine-1,2-dicarboxylate

Boc-4-oxo-L-proline methyl ester (CAS 102195-80-2) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C11H17NO5 and a molecular weight of 243.256 g/mol. Key properties include a melting point of 35-40ºC, a boiling point of 333.1±42.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 155.3±27.9 °C. It is classified under GHS with signal word Danger and hazard statements H302 — Harmful if swallowed, H312 — Harmful in contact with skin and H318 — Causes serious eye damage. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
102195-80-2
Jingsj CID
J-1110252-6
Molecular Formula
C11H17NO5
Molecular Weight
243.256 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point35-40ºC
Boiling Point333.1±42.0 °C at 760 mmHg
Density1.2±0.1 g/cm3
Flash Point155.3±27.9 °C
Exact Mass243.110672
PSA72.91000
LogP0.03
Vapor Pressure0.0±0.7 mmHg at 25°C
Refractive Index1.488

GHS Safety & Compliance

Corrosion / IrritantSignal word: Danger
  • H302 — Harmful if swallowed
  • H312 — Harmful in contact with skin
  • H318 — Causes serious eye damage

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 Boc-4-oxo-L-proline methyl ester?

The CAS number of Boc-4-oxo-L-proline methyl ester is 102195-80-2.

What are the molecular formula and molecular weight of Boc-4-oxo-L-proline methyl ester?

Boc-4-oxo-L-proline methyl ester has molecular formula C11H17NO5 and molecular weight 243.256 g/mol.

Is Boc-4-oxo-L-proline methyl ester hazardous?

Boc-4-oxo-L-proline methyl ester has GHS signal word Danger and hazard statements H302 — Harmful if swallowed; H312 — Harmful in contact with skin; H318 — Causes serious eye damage.

What are the upstream and downstream products of Boc-4-oxo-L-proline methyl ester?

For Boc-4-oxo-L-proline methyl ester, Upstream Products: N-Boc-trans-4-hydroxy-L-proline methyl ester, Oxalyl chloride, Dimethyl sulfoxide; Downstream Products: (2S,4R)-Boc-4-phenyl-pyrrolidine-2-carboxylic acid, Kainic acid, 1-tert-butyl 2-methyl (2S)-2,5-dihydro-1H-pyrrole-1,2-dicarboxylate.

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

Last updated:

How to cite: Jingsj. "Boc-4-oxo-L-proline methyl ester (CAS 102195-80-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1110252-6 (accessed 2026-11-09).

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