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1-Boc-2-methyl-DL-proline

Also known as: Boc-α-Me-DL-Pro-OH, 1-(tert-Butoxycarbonyl)-2-methylpyrrolidine-2-carboxylic acid, 1-(tert-Butoxycarbonyl)-2-methylproline, 1-Boc-2-methyl-2-pyrrolidinecarboxylic acid, 2-methyl-1-[(2-methylpropan-2-yl)oxycarbonyl]pyrrolidine-2-carboxylic acid, 1,2-Pyrrolidinedicarboxylic acid, 2-methyl-, 1-(1,1-dimethylethyl) ester

1-Boc-2-methyl-DL-proline (CAS 203869-80-1) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C11H19NO4 and a molecular weight of 229.273 g/mol. Key properties include a boiling point of 337.762°C at 760 mmHg, a density of 1.16g/cm3 and a flash point of 158.1±25.9 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
203869-80-1
Jingsj CID
J-1455014-2
Molecular Formula
C11H19NO4
Molecular Weight
229.273 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point337.762°C at 760 mmHg
Density1.16g/cm3
Flash Point158.1±25.9 °C
Exact Mass229.131409
PSA66.84000
LogP1.10
Vapor Pressure0.0±1.6 mmHg at 25°C
Refractive Index1.494

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 1-Boc-2-methyl-DL-proline?

The CAS number of 1-Boc-2-methyl-DL-proline is 203869-80-1.

What are the molecular formula and molecular weight of 1-Boc-2-methyl-DL-proline?

1-Boc-2-methyl-DL-proline has molecular formula C11H19NO4 and molecular weight 229.273 g/mol.

What are the upstream and downstream products of 1-Boc-2-methyl-DL-proline?

For 1-Boc-2-methyl-DL-proline, Upstream Products: 1-tert-Butyl 2-methyl 2-methylpyrrolidine-1,2-dicarboxylate, Boc-L-Proline, iodomethane.

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

Last updated:

How to cite: Jingsj. "1-Boc-2-methyl-DL-proline (CAS 203869-80-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1455014-2 (accessed 2026-11-09).

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