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N-(tert-Butoxycarbonyl)-L-isoleucine

Also known as: Boc-L-Isoleucine, Boc-Ile-OH, N-tert-Butoxycarbonyl-L-isoleucine, (2S,3S)-2-((tert-Butoxycarbonyl)amino)-3-methylpentanoic acid, N-alpha-t-Boc-L-isoleucine, N-t-Boc-L-isoleucine, Boc-L-Isoleucine Hemihydrate, N-(tert-Butoxycarbonyl)-L-isoleucine hemihydrate, (2S,3S)-3-Methyl-2-({[(2-methyl-2-propanyl)oxy]carbonyl}amino)pentanoic acid, L-Isoleucine, N-[(1,1-dimethylethoxy)carbonyl]-

N-(tert-Butoxycarbonyl)-L-isoleucine (CAS 13139-16-7) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C11H21NO4 and a molecular weight of 231.289 g/mol. Key properties include a melting point of 66-69 °C(lit.), a boiling point of 356.0±25.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 169.1±23.2 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
13139-16-7
Jingsj CID
J-1081612-3
Molecular Formula
C11H21NO4
Molecular Weight
231.289 g/mol
Category
Organic Acids
Last updated
8/21/2026
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Physicochemical Properties

Melting Point66-69 °C(lit.)
Boiling Point356.0±25.0 °C at 760 mmHg
Density1.1±0.1 g/cm3
Flash Point169.1±23.2 °C
Exact Mass231.147064
PSA75.63000
LogP2.51
Vapor Pressure0.0±1.7 mmHg at 25°C
Refractive Index1.461

Activity & Biological Data

Additional Information[1]. Luckose F, et al. Effects of amino acid derivatives on physical, mental, and physiological activities. Crit Rev Food Sci Nutr. 2015;55(13):1793-1144.

Customs & Trade Information

HS Code2924199090
Summary2924199090. other acyclic amides (including acyclic carbamates) and their derivatives; salts thereof. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0%

Frequently Asked Questions

What is the CAS number of N-(tert-Butoxycarbonyl)-L-isoleucine?

The CAS number of N-(tert-Butoxycarbonyl)-L-isoleucine is 13139-16-7.

What are the molecular formula and molecular weight of N-(tert-Butoxycarbonyl)-L-isoleucine?

N-(tert-Butoxycarbonyl)-L-isoleucine has molecular formula C11H21NO4 and molecular weight 231.289 g/mol.

What are the upstream and downstream products of N-(tert-Butoxycarbonyl)-L-isoleucine?

For N-(tert-Butoxycarbonyl)-L-isoleucine, Upstream Products: L-Isoleucine, Di-tert-butyl dicarbonate, tert-Butyl (4-nitrophenyl) carbonate; Downstream Products: Angiotensin II, Boc-L-isoleucine amide, Boc-L-beta-homoisoleucine.

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

Last updated:

How to cite: Jingsj. "N-(tert-Butoxycarbonyl)-L-isoleucine (CAS 13139-16-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1081612-3 (accessed 2026-11-09).

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