Skip to Content
MilliporeSigma
All Photos(2)

Key Documents

8.16014

Sigma-Aldrich

(R)-(+)-Cysteine

for synthesis

Synonym(s):

(R)-(+)-Cysteine, α-Amino-ß-mercapto propionic acid, αlpha-Amino-ß-mercapto propionic acid, Cys, αlpha-Amino-beta-mercapto propionic acid

Sign Into View Organizational & Contract Pricing
All Photos(2)

About This Item

Empirical Formula (Hill Notation):
C3H7NO2S
CAS Number:
52-90-4
Molecular Weight:
121.16
MDL number:
MFCD00064306
UNSPSC Code:
12352209
EC Index Number:
200-158-2
NACRES:
NA.22

Quality Level

200

form

solid

autoignition temp.

420 °C

potency

1890 mg/kg LD50, oral (Rat)

pH

4.5-5.5 (20 °C, 100 g/L in H2O)

mp

220-228 °C

bulk density

300 kg/m3

storage temp.

2-30°C

InChI

1S/C3H7NO2S/c4-2(1-7)3(5)6/h2,7H,1,4H2,(H,5,6)

InChI key

XUJNEKJLAYXESH-UHFFFAOYSA-N

Analysis Note

Assay (HClO₄): ≥ 98.0 %
Spec. rotation [α²0/D (c=8 in HCl 1 mol/l): +8.0 - +9.5 °
Identity (IR): passes test

Storage Class

13 - Non Combustible Solids

wgk_germany

WGK 1

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service