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Identify Suppliers 2025 Properties Safty

L-Cysteine base

BGC Id:	251067004466
CAS No:	52-90-4
Synonyms:	fema 3263 ; thioserine ; cysteine ; nsc-8746 ; e 920 ; h-cys-oh ; cysh ; cys ; l-cys ; cystein
Molecular Formula:	C3H7NO2S
Molecular Weight:	121.16
EINECS:	200-158-2

The most competitive supplier in 2025

The following notable provider has been checked and can be recommended.

Purestar Chem Enterprise Co., Ltd.

Company type: Supplier

Phone: +86-572-2157374
Telefax: +86-572-2146389
Country: P.R.China

Purestar Chem Enterprise Co., Ltd. (also known as Huzhou Purestar Biochem Co., Ltd.) is a professional supplier of high-quality botanical extracts and ingredients for the dietary supplement, functional food, and nutrition industries. We sell Dicalcium phosphate anhydrous as well. Located in Huzhou, Zhejiang Province, China, we have been serving customers worldwide since 2005. Our product portf ...

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What other providers are available for CAS 52-90-4?

The last intensive check and update was carried out on 2025/08/11.

Identify

Synonyms:

fema 3263 ; thioserine ; cysteine ; nsc-8746 ; e 920 ; h-cys-oh ; cysh ; cys ; l-cys ; cystein

CAS:

52-90-4

EINECS:

200-158-2

Molecular Formula:

C3H7NO2S

MDL:

MFCD00064306

Properties

Molecular Weight:

121.16 g·mol−1

Density:

1.68 g/cm³

Melting point:

220 °C (dec.)(lit.)

Boiling point:

254 °C

Solubility:

H₂O: 25 mg/mL

Safety Information

Hazard Symbols: Xn, Xi

Europe standard Hazard pictograms, code and definition

Hazard Classes:

Risk Codes:

22-36/37/38-20/21/22 (R)

Safety Codes:

36-37/39-26 (S)

WGK Germany:

RTECS:

HA1600000

Storage temperature:

Store at RT.

The following providers cannot be verified precisely. The companies have offered the product in the past, but despite all care, the companies could not confirm it 100 percent!

Buckton Scott USA, Inc.

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What other providers are available for CAS 52-90-4?

In addition to the providers presented here for L-Cysteine base with the CAS number 52-90-4, there are other 147 providers with slightly different product names available for this CAS number.