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cis-N-Boc-4-cyano-L-proline methyl ester

Also known as: 1-O-tert-butyl 2-O-methyl (2S,4S)-4-cyanopyrrolidine-1,2-dicarboxylate, (2S,4S)-1-tert-butyl 2-methyl 4-cyanopyrrolidine-1,2-dicarboxylate, (2S,4S)-4-cyano-1,2-pyrrolidinedicarboxylic acid 1-(tert-butyl) 2-methyl ester, 1-tert-butyl 2-methyl (2S,4S)-4-cyanopyrrolidine-1,2-dicarboxylate, N-Boc-cis-4-cyano-L-proline methyl ester, Boc-cis-4-cyano-L-proline methyl ester, Velpatasvir Intermediate 2

cis-N-Boc-4-cyano-L-proline methyl ester (CAS 487048-28-2) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C12H18N2O4 and a molecular weight of 254.28200 g/mol. Key properties include a boiling point of 366.4±42.0 °C(Predicted) and a density of 1.17. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
487048-28-2
Jingsj CID
J-1454967-8
Molecular Formula
C12H18N2O4
Molecular Weight
254.28200 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point366.4±42.0 °C(Predicted)
Density1.17
Exact Mass254.12700
PSA79.63000
LogP1.24648

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 cis-N-Boc-4-cyano-L-proline methyl ester?

The CAS number of cis-N-Boc-4-cyano-L-proline methyl ester is 487048-28-2.

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

cis-N-Boc-4-cyano-L-proline methyl ester has molecular formula C12H18N2O4 and molecular weight 254.28200 g/mol.

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

For cis-N-Boc-4-cyano-L-proline methyl ester, Upstream Products: N-Boc-trans-4-tosyloxy-L-proline methyl ester, (2S,4R)-1-tert-Butyl 2-methyl 4-((methylsulfonyl)oxy)pyrrolidine-1,2-dicarboxylate, N-Boc-trans-4-hydroxy-L-proline methyl ester; Downstream Products: (2S,4S)-1-(tert-butoxycarbonyl)-4-cyanopyrrolidine-2-carboxylic acid.

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

Last updated:

How to cite: Jingsj. "cis-N-Boc-4-cyano-L-proline methyl ester (CAS 487048-28-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1454967-8 (accessed 2026-11-09).

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