O-Acetyl-L-serine hydrochloride

O-乙酰-L-丝氨酸盐酸盐

Also known as: H-Ser(Ac)-OH HCl, H-L-Ser(Ac)-OH HCl, L-Serine, O-acetyl-, hydrochloride (1:1), O-Acetyl-L-serine HCl, O-Acetyl-L-serine hydrochloride (1:1), O-ACETYL-L-SERINE HYDROCHLORIDE, ACETYLSERINE, SERINE(AC)-OH HCL

O-Acetyl-L-serine hydrochloride (CAS 66638-22-0) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C5H10ClNO4 and a molecular weight of 183.590 g/mol. It is also known as H-Ser(Ac)-OH HCl, H-L-Ser(Ac)-OH HCl and L-Serine, O-acetyl-, hydrochloride (1:1). Key properties include a melting point of 163ºC, a boiling point of 297.7ºC at 760mmHg, a density of 1.299g/cm3 and a flash point of 133.8ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
66638-22-0
Jingsj CID
J-49666-1
Molecular Formula
C5H10ClNO4
Chinese Name
O-乙酰-L-丝氨酸盐酸盐
Molecular Weight
183.590 g/mol
Category
Organic Acids
Last updated
8/21/2026

No offers for this compound yet.

Request a quote

Physicochemical Properties

Melting Point163ºC
Boiling Point297.7ºC at 760mmHg
Density1.299g/cm3
Flash Point133.8ºC

Frequently Asked Questions

What is the CAS number of O-Acetyl-L-serine hydrochloride?

The CAS number of O-Acetyl-L-serine hydrochloride is 66638-22-0.

What are the molecular formula and molecular weight of O-Acetyl-L-serine hydrochloride?

O-Acetyl-L-serine hydrochloride has molecular formula C5H10ClNO4 and molecular weight 183.590 g/mol.

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

Last updated:

How to cite: Jingsj. "O-Acetyl-L-serine hydrochloride (CAS 66638-22-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-49666-1 (accessed 2026-10-23).

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