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Cysteamine hydrochloride

Also known as: 2-Aminoethanethiol hydrochloride, 2-Mercaptoethylamine hydrochloride, Mercaptamine hydrochloride, 2-Amino-ethanethiol hydrochloride, 2-Mercaptoethanamine hydrochloride, Decarboxycysteine hydrochloride, Thioethanolamine hydrochloride, β-Mercaptoethylamine hydrochloride, Cysteaminium chloride, Ethanethiol, 2-amino-, hydrochloride (1:1), MFCD00012904

Cysteamine hydrochloride (CAS 156-57-0) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C2H8ClNS and a molecular weight of 113.610 g/mol. Key properties include a melting point of 67-71 °C, a boiling point of 116.4ºC at 760 mmHg, a density of 0.75 and a flash point of 24.2ºC. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed. It is listed by 1 supplier, from 2.17 to 5.20 CNY. Record last updated Aug 21, 2026.

CAS No.
156-57-0
Jingsj CID
J-36076-2
Molecular Formula
C2H8ClNS
Molecular Weight
113.610 g/mol
Category
Organic Acids
Last updated
8/21/2026
In Stock

Supplier Offers

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SupplierPurity / PackBase PriceUnit PriceOrigin
In Stock
98%
500g
¥1,085.00
$0.32 /gBest
¥2.17/g CNY
CN China
MOQ 500g
In Stock
98%
100g
¥270.00
$0.4 /g
¥2.70/g CNY
CN China
MOQ 100g
In Stock
98%
25g
¥130.00
$0.78 /g
¥5.20/g CNY
CN China
MOQ 25g

Physicochemical Properties

Melting Point67-71 °C
Boiling Point116.4ºC at 760 mmHg
Density0.75
Flash Point24.2ºC
Exact Mass113.006599
PSA64.82000
LogP1.37720
Vapor Pressure16.7mmHg at 25°C
StabilityStable, but hygroscopic. Incompatible with strong oxidizing agents.
Additional PropertyVERY SOLUBLE

GHS Safety & Compliance

IrritantSignal word: Warning
  • H302 — Harmful if swallowed

Activity & Biological Data

Additional Information[1]. Besouw, M., et al., Cysteamine: an old drug with new potential. Drug Discov Today, 2013. 18(15-16): p. 785-92. [2]. de Matos, D.G., et al., Effect of cysteamine on glutathione level and developmental capacity of bovine oocyte matured in vitro. Mol Reprod Dev, 1995. 42(4): p. 432-6.

Customs & Trade Information

HS Code2930909090
Summary2930909090. other organo-sulphur compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0%

Frequently Asked Questions

What is the CAS number of Cysteamine hydrochloride?

The CAS number of Cysteamine hydrochloride is 156-57-0.

What are the molecular formula and molecular weight of Cysteamine hydrochloride?

Cysteamine hydrochloride has molecular formula C2H8ClNS and molecular weight 113.610 g/mol.

Which suppliers offer Cysteamine hydrochloride?

1 supplier(s) listed; reference unit price ¥2.17–5.20 /g.

Is Cysteamine hydrochloride hazardous?

Cysteamine hydrochloride has GHS signal word Warning and hazard statements H302 — Harmful if swallowed.

What are the upstream and downstream products of Cysteamine hydrochloride?

For Cysteamine hydrochloride, Upstream Products: 2-Mercaptothiazoline, Nitrogen, L-Alanine; Downstream Products: 2-[(4-Methylbenzyl)thio]ethanamine, 2-Phenylthiazolidine, 2-(4-Methoxyphenyl)thiazolidine.

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

Last updated:

How to cite: Jingsj. "Cysteamine hydrochloride (CAS 156-57-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-36076-2 (accessed 2026-11-06).

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