L-Leucine tert-butyl ester hydrochloride

Also known as: H-Leu-OtBu.HCl, H-Leu-OtBu·HCl, H-Leu-OtBu hydrochloride, L-Leucine t-butyl ester hydrochloride, L-Leucine tert-butyl ester HCl, L-Leucine, 1,1-dimethylethyl ester, hydrochloride (1:1), tert-Butyl L-leucinate hydrochloride (1:1), tert-Butyl L-leucinate hydrochloride, Leucine tert-butyl ester hydrochloride, Leu-OtBu.HCl, MFCD00038906

L-Leucine tert-butyl ester hydrochloride (CAS 2748-02-9) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C10H22ClNO2 and a molecular weight of 223.740 g/mol. Key properties include a melting point of 167 °C, a boiling point of 222.4ºC at 760 mmHg, a density of 0.929g/cm3 and a flash point of 90.3ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 2748-02-9
Jingsj CID: J-33046-1
Molecular Formula: C₁₀H₂₂ClNO₂
Molecular Weight: 223.740 g/mol
Category: Organic Acids
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	167 °C
Boiling Point	222.4ºC at 760 mmHg
Density	0.929g/cm3
Flash Point	90.3ºC
Exact Mass	223.133911
PSA	52.32000
LogP	3.20380
Vapor Pressure	0.102mmHg at 25°C
Refractive Index	1.444

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 Code	2922499990
Summary	HS:2922499990 other amino-acids, other than those containing more than one kind of oxygen function, and their esters; salts thereof VAT:17.0% Tax rebate rate:9.0% Supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward) MFN tariff:6.5% General tariff:30.0%

Frequently Asked Questions

What is the CAS number of L-Leucine tert-butyl ester hydrochloride?

The CAS number of L-Leucine tert-butyl ester hydrochloride is 2748-02-9.

What are the molecular formula and molecular weight of L-Leucine tert-butyl ester hydrochloride?

L-Leucine tert-butyl ester hydrochloride has molecular formula C10H22ClNO2 and molecular weight 223.740 g/mol.

What are the upstream and downstream products of L-Leucine tert-butyl ester hydrochloride?

For L-Leucine tert-butyl ester hydrochloride, Downstream Products: L-Leucine tert-butyl ester, [Leu5]-Enkephalin, Leucine enkephalin 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. "L-Leucine tert-butyl ester hydrochloride (CAS 2748-02-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-33046-1 (accessed 2026-11-09).

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