(2S,4S)-1-(tert-Butoxycarbonyl)-4-methoxypyrrolidine-2-carboxylic acid

Also known as: (2S,4S)-4-METHOXY-PYRROLIDINE-1,2-DICARBOXYLIC ACID 1-TERT-BUTYL ESTER, (2S,4S)-4-Methoxy-1-(tert-butoxycarbonyl)pyrrolidine-2-carboxylic acid, (2S,4S)-4-methoxy-1-[(2-methylpropan-2-yl)oxycarbonyl]pyrrolidine-2-carboxylic acid, (4S)-1-Boc-4-methoxy-L-proline, (4S)-4-Methoxy-1-{[(2-methyl-2-propanyl)oxy]carbonyl}-L-proline, 4(S)-methoxy-1-Boc-L-Proline, CIS-1-N-BOC-4-METHOXY-L-PROLINE, 1,2-Pyrrolidinedicarboxylic acid, 4-methoxy-, 1-(1,1-dimethylethyl) ester, (2S,4S)-

(2S,4S)-1-(tert-Butoxycarbonyl)-4-methoxypyrrolidine-2-carboxylic acid (CAS 83623-93-2) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C11H19NO5 and a molecular weight of 245.272 g/mol. Key properties include a boiling point of 362.0±42.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 172.7±27.9 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 83623-93-2
Jingsj CID: J-1484772-4
Molecular Formula: C₁₁H₁₉NO₅
Molecular Weight: 245.272 g/mol
Category: Organic Acids
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	362.0±42.0 °C at 760 mmHg
Density	1.2±0.1 g/cm3
Flash Point	172.7±27.9 °C
Exact Mass	245.126328
PSA	76.07000
LogP	-0.07
Vapor Pressure	0.0±1.7 mmHg at 25°C
Refractive Index	1.500

Customs & Trade Information

HS Code	2933990090
Summary	2933990090. 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 (2S,4S)-1-(tert-Butoxycarbonyl)-4-methoxypyrrolidine-2-carboxylic acid?

The CAS number of (2S,4S)-1-(tert-Butoxycarbonyl)-4-methoxypyrrolidine-2-carboxylic acid is 83623-93-2.

What are the molecular formula and molecular weight of (2S,4S)-1-(tert-Butoxycarbonyl)-4-methoxypyrrolidine-2-carboxylic acid?

(2S,4S)-1-(tert-Butoxycarbonyl)-4-methoxypyrrolidine-2-carboxylic acid has molecular formula C11H19NO5 and molecular weight 245.272 g/mol.

What are the upstream and downstream products of (2S,4S)-1-(tert-Butoxycarbonyl)-4-methoxypyrrolidine-2-carboxylic acid?

For (2S,4S)-1-(tert-Butoxycarbonyl)-4-methoxypyrrolidine-2-carboxylic acid, Upstream Products: N-Boc-cis-4-hydroxy-L-proline, iodomethane, Di-tert-butyl dicarbonate.

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. "(2S,4S)-1-(tert-Butoxycarbonyl)-4-methoxypyrrolidine-2-carboxylic acid (CAS 83623-93-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1484772-4 (accessed 2026-11-09).

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