Cysteamine S-phosphate sodium salt

半胱胺S-磷酸钠盐

Also known as: Ethanethiol, 2-amino-,1-(dihydrogen phosphate), sodium salt (1:1), Cystaphos, Cystafos, Cistaphos, WR 638, NSC 87174, S-(2-Aminoethyl)thiophosphate monosodium salt, Sodium hydrogen S-(2-aminoethyl)phosphorothioate, Phosphocysteamine, Tsistafos, sodium,2-aminoethylsulfanyl(hydroxy)phosphinate

Cysteamine S-phosphate sodium salt (CAS 3724-89-8) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C2H7NNaO3PS and a molecular weight of 179.11000 g/mol. It is also known as Ethanethiol, 2-amino-,1-(dihydrogen phosphate), sodium salt (1:1), Cystaphos and Cystafos. Key properties include a melting point of 220ºC (dec.)(lit.), a boiling point of 384.2ºC at 760mmHg, a density of 1.597g/cm3 and a flash point of 186.2ºC. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
3724-89-8
Jingsj CID
J-30410-8
Molecular Formula
C2H7NNaO3PS
Chinese Name
半胱胺S-磷酸钠盐
Molecular Weight
179.11000 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point220ºC (dec.)(lit.)
Boiling Point384.2ºC at 760mmHg
Density1.597g/cm3
Flash Point186.2ºC

GHS Safety & Compliance

IrritantSignal word: Warning

Frequently Asked Questions

What is the CAS number of Cysteamine S-phosphate sodium salt?

The CAS number of Cysteamine S-phosphate sodium salt is 3724-89-8.

What are the molecular formula and molecular weight of Cysteamine S-phosphate sodium salt?

Cysteamine S-phosphate sodium salt has molecular formula C2H7NNaO3PS and molecular weight 179.11000 g/mol.

Is Cysteamine S-phosphate sodium salt hazardous?

Cysteamine S-phosphate sodium salt has GHS signal word Warning.

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

Last updated:

How to cite: Jingsj. "Cysteamine S-phosphate sodium salt (CAS 3724-89-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-30410-8 (accessed 2026-10-24).

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