L-Isoleucine benzyl ester 4-methylbenzenesulfonate

L-异亮氨酸苄酯对甲苯磺酸盐

Also known as: (2S,3S)-Benzyl 2-amino-3-methylpentanoate 4-methylbenzenesulfonate, Benzyl L-isoleucinate 4-methylbenzenesulfonate, H-Ile-OBzl·Tos, H-Ile-OBzl·TosOH, L-Isoleucine benzyl ester tosylate, L-Isoleucine benzyl ester p-toluenesulfonate

L-Isoleucine benzyl ester 4-methylbenzenesulfonate (CAS 16652-75-8) is a compound in the Solvents category listed in the Jingsj chemical database. It has the molecular formula C20H27NO5S and a molecular weight of 393.497 g/mol. It is also known as (2S,3S)-Benzyl 2-amino-3-methylpentanoate 4-methylbenzenesulfonate, Benzyl L-isoleucinate 4-methylbenzenesulfonate and H-Ile-OBzl·Tos. Key properties include a melting point of 153-155 °C, a boiling point of 545.1ºC at 760 mmHg and a flash point of 283.4ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 16652-75-8
Jingsj CID: J-1168370-6
Molecular Formula: C₂₀H₂₇NO₅S
Chinese Name: L-异亮氨酸苄酯对甲苯磺酸盐
Molecular Weight: 393.497 g/mol
Category: Solvents
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	153-155 °C
Boiling Point	545.1ºC at 760 mmHg
Flash Point	283.4ºC
Exact Mass	393.160980
PSA	115.07000
LogP	5.12600
Vapor Pressure	1.03E-12mmHg at 25°C
Storage Conditions	Store at RT.

Customs & Trade Information

HS Code	2923900090
Summary	2923900090 other quaternary ammonium salts and hydroxides。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:6.5%。General tariff:30.0%

Frequently Asked Questions

What is the CAS number of L-Isoleucine benzyl ester 4-methylbenzenesulfonate?

The CAS number of L-Isoleucine benzyl ester 4-methylbenzenesulfonate is 16652-75-8.

What are the molecular formula and molecular weight of L-Isoleucine benzyl ester 4-methylbenzenesulfonate?

L-Isoleucine benzyl ester 4-methylbenzenesulfonate has molecular formula C20H27NO5S and molecular weight 393.497 g/mol.

What are the upstream and downstream products of L-Isoleucine benzyl ester 4-methylbenzenesulfonate?

For L-Isoleucine benzyl ester 4-methylbenzenesulfonate, Upstream Products: L-Isoleucine, p-Toluenesulfonic acid, Benzyl alcohol.

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

Last updated: 8/21/2026

How to cite: Jingsj. "L-Isoleucine benzyl ester 4-methylbenzenesulfonate (CAS 16652-75-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1168370-6 (accessed 2026-10-28).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.