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1-tert-butyl 2-methyl (2S)-2,5-dihydro-1H-pyrrole-1,2-dicarboxylate

Also known as: Boc-3,4-dehydro-L-proline methyl ester, (S)-Boc-3,4-dehydro-pyrrolidine methyl ester, Methyl N-Boc-L-proline-3-ene, (S)-1-tert-Butyl 2-methyl 1H-pyrrole-1,2(2H,5H)-dicarboxylate, 1-O-tert-butyl 2-O-methyl (2S)-2,5-dihydropyrrole-1,2-dicarboxylate, 1-tert-butyl 2-Methyl 2,5-dihydro-1H-pyrrole-1,2-dicarboxylate, 1-(tert-Butyl) 2-methyl (S)-2,5-dihydro-1H-pyrrole-1,2-dicarboxylate, (S)-2,5-Dihydro-pyrrole-1,2-dicarboxylic acid 1-tert-butyl ester 2-methyl ester, 1H-Pyrrole-1,2-dicarboxylic acid, 2,5-dihydro-, 1-(1,1-dimethylethyl) 2-methyl ester, (2S)-, N-Boc-3,4-dehydro-L-proline methyl ester, N-Boc-L-proline-3-ene, Boc-3,4-dehydro-L-Pro-OMe

1-tert-butyl 2-methyl (2S)-2,5-dihydro-1H-pyrrole-1,2-dicarboxylate (CAS 74844-93-2) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C11H17NO4 and a molecular weight of 227.257 g/mol. Key properties include a boiling point of 287.3±40.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 127.6±27.3 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
74844-93-2
Jingsj CID
J-1342967-9
Molecular Formula
C11H17NO4
Molecular Weight
227.257 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point287.3±40.0 °C at 760 mmHg
Density1.1±0.1 g/cm3
Flash Point127.6±27.3 °C
Exact Mass227.115753
PSA55.84000
LogP0.99
Vapor Pressure0.0±0.6 mmHg at 25°C
Refractive Index1.492
Storage ConditionsStore at 0-5°C

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-tert-butyl 2-methyl (2S)-2,5-dihydro-1H-pyrrole-1,2-dicarboxylate?

The CAS number of 1-tert-butyl 2-methyl (2S)-2,5-dihydro-1H-pyrrole-1,2-dicarboxylate is 74844-93-2.

What are the molecular formula and molecular weight of 1-tert-butyl 2-methyl (2S)-2,5-dihydro-1H-pyrrole-1,2-dicarboxylate?

1-tert-butyl 2-methyl (2S)-2,5-dihydro-1H-pyrrole-1,2-dicarboxylate has molecular formula C11H17NO4 and molecular weight 227.257 g/mol.

What are the upstream and downstream products of 1-tert-butyl 2-methyl (2S)-2,5-dihydro-1H-pyrrole-1,2-dicarboxylate?

For 1-tert-butyl 2-methyl (2S)-2,5-dihydro-1H-pyrrole-1,2-dicarboxylate, Upstream Products: Diazomethane, (S)-1-(tert-Butoxycarbonyl)-2,5-dihydro-1H-pyrrole-2-carboxylic acid, N-Boc-trans-4-hydroxy-L-proline methyl ester; Downstream Products: (S)-1-(tert-Butoxycarbonyl)-2,5-dihydro-1H-pyrrole-2-carboxylic acid, (2S)-1-[(tert-butoxy)carbonyl]-2,3-dihydro-1H-pyrrole-2-carboxylic acid, N-Boc-cis-4-fluoro-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. "1-tert-butyl 2-methyl (2S)-2,5-dihydro-1H-pyrrole-1,2-dicarboxylate (CAS 74844-93-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1342967-9 (accessed 2026-11-09).

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