Poly-L-aspartic acid

聚天冬氨酸

Also known as: Polyaspartic acid, Poly(aspartic acid), PASP, L-Aspartic acid homopolymer, Poly-L-aspartic acid, sodium salt USP

Poly-L-aspartic acid (CAS 25608-40-6) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula (C3H5ClO·C2H7N·H3N)x and a molecular weight of 133.103 g/mol. It is also known as Polyaspartic acid, Poly(aspartic acid) and PASP. Key properties include a boiling point of 264.1±30.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 113.5±24.6 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
25608-40-6
Jingsj CID
J-1528492-1
Molecular Formula
(C3H5ClOC2H7NH3N)x
Chinese Name
聚天冬氨酸
Molecular Weight
133.103 g/mol
Category
Organic Acids
Last updated
8/21/2026

No offers for this compound yet.

Request a quote

Physicochemical Properties

Boiling Point264.1±30.0 °C at 760 mmHg
Density1.5±0.1 g/cm3
Flash Point113.5±24.6 °C

Frequently Asked Questions

What is the CAS number of Poly-L-aspartic acid?

The CAS number of Poly-L-aspartic acid is 25608-40-6.

What are the molecular formula and molecular weight of Poly-L-aspartic acid?

Poly-L-aspartic acid has molecular formula (C3H5ClO·C2H7N·H3N)x and molecular weight 133.103 g/mol.

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

Last updated:

How to cite: Jingsj. "Poly-L-aspartic acid (CAS 25608-40-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1528492-1 (accessed 2026-10-25).

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