Nα-Boc-L-tryptophan 4-nitrophenyl ester

Also known as: Boc-Trp-ONp, BOC-L-TRYPTOPHAN 4-NITROPHENYL ESTER, BOC-L-TRYPTOPHAN P-NITROPHENYL ESTER, BOC-TRP-ONP, BOC-TRYPTOPHAN-ONP, N-ALPHA-BOC-L-TRYPTOPHAN 4-NITROPHENYL ESTER, N-tBoc-L-tryptophan 4-nitrophenyl ester, N-tert-Butoxycarbonyl-L-tryptophan 4-nitrophenylester, S-N-BOC-Tryptophan-p-nitrophenylester, 4-nitrophenyl N-[(tert-butoxy)carbonyl]-L-tryptophanate

Nα-Boc-L-tryptophan 4-nitrophenyl ester (CAS 15160-31-3) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C22H23N3O6 and a molecular weight of 425.43500 g/mol. Key properties include a boiling point of 651.3ºC at 760mmHg, a density of 1.313g/cm3 and a flash point of 347.7ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 15160-31-3
Jingsj CID: J-1350578-7
Molecular Formula: C₂₂H₂₃N₃O₆
Molecular Weight: 425.43500 g/mol
Category: Organic Acids
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	651.3ºC at 760mmHg
Density	1.313g/cm3
Flash Point	347.7ºC
Exact Mass	425.15900
PSA	126.24000
LogP	5.03160
Vapor Pressure	7.58E-17mmHg at 25°C
Refractive Index	1.621

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 Nα-Boc-L-tryptophan 4-nitrophenyl ester?

The CAS number of Nα-Boc-L-tryptophan 4-nitrophenyl ester is 15160-31-3.

What are the molecular formula and molecular weight of Nα-Boc-L-tryptophan 4-nitrophenyl ester?

Nα-Boc-L-tryptophan 4-nitrophenyl ester has molecular formula C22H23N3O6 and molecular weight 425.43500 g/mol.

What are the upstream and downstream products of Nα-Boc-L-tryptophan 4-nitrophenyl ester?

For Nα-Boc-L-tryptophan 4-nitrophenyl ester, Upstream Products: N-[(tert-Butoxy)carbonyl]-L-tryptophan; Downstream Products: Gonadorelin, Bombesin (8-14) acetate salt.

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. "Nα-Boc-L-tryptophan 4-nitrophenyl ester (CAS 15160-31-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1350578-7 (accessed 2026-11-09).

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