N-[(tert-Butoxy)carbonyl]-L-tryptophan

Also known as: N-[(1,1-dimethylethoxy)carbonyl]-L-tryptophan, Boc-Trp-OH, Boc-L-Trp, Boc-L-tryptophan, Nα-Boc-L-tryptophan, Nα-(tert-Butoxycarbonyl)-L-tryptophan, N-tert-Butoxycarbonyl-L-tryptophan, (S)-2-((tert-Butoxycarbonyl)amino)-3-(1H-indol-3-yl)propanoic acid, N-{[(2-Methyl-2-propanyl)oxy]carbonyl}-L-tryptophan, tert-butyloxycarbonyltryptophan, MFCD00065595, EINECS 236-072-7, N-alpha-tert-butoxycarbonyl-L-tryptophane

N-[(tert-Butoxy)carbonyl]-L-tryptophan (CAS 13139-14-5) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C16H20N2O4 and a molecular weight of 304.341 g/mol. Key properties include a melting point of 136 °C (dec.)(lit.), a boiling point of 535.7±45.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 277.8±28.7 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 13139-14-5
Jingsj CID: J-1107437-6
Molecular Formula: C₁₆H₂₀N₂O₄
Molecular Weight: 304.341 g/mol
Category: Organic Acids
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	136 °C (dec.)(lit.)
Boiling Point	535.7±45.0 °C at 760 mmHg
Density	1.3±0.1 g/cm3
Flash Point	277.8±28.7 °C
Exact Mass	304.142303
PSA	91.42000
LogP	2.89
Vapor Pressure	0.0±1.5 mmHg at 25°C
Refractive Index	1.602

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 N-[(tert-Butoxy)carbonyl]-L-tryptophan?

The CAS number of N-[(tert-Butoxy)carbonyl]-L-tryptophan is 13139-14-5.

What are the molecular formula and molecular weight of N-[(tert-Butoxy)carbonyl]-L-tryptophan?

N-[(tert-Butoxy)carbonyl]-L-tryptophan has molecular formula C16H20N2O4 and molecular weight 304.341 g/mol.

What are the upstream and downstream products of N-[(tert-Butoxy)carbonyl]-L-tryptophan?

For N-[(tert-Butoxy)carbonyl]-L-tryptophan, Upstream Products: Di-tert-butyl dicarbonate, L-Tryptophan, 1-(tert-Butoxycarbonyl)benzotriazole; Downstream Products: Nα-Boc-L-tryptophan 4-nitrophenyl ester, L-Tryptophan, Delta-sleep-inducing peptide.

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. "N-[(tert-Butoxy)carbonyl]-L-tryptophan (CAS 13139-14-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1107437-6 (accessed 2026-11-09).

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