(2R)-2-Amino-3-sulfanylpropanoic acid

BGC Id:	765792004899
CAS No:	52-90-4
Synonyms:	l-cys ; cys ; h-cys-oh ; fema 3263 ; thioserine ; cystein ; cysh ; e 920 ; cysteine ; nsc-8746
Molecular Formula:	C3H7NO2S
Molecular Weight:	121.16
EINECS:	200-158-2

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Country: U.K.

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The last intensive check and update was carried out on 2025/10/16.

Identify

Synonyms:

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

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.

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

In addition to the providers presented here for (2R)-2-Amino-3-sulfanylpropanoic acid with the CAS number 52-90-4, there are other 167 providers with slightly different product names available for this CAS number.