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243005

Millipore

L-Cysteine, Free Base

Naturally-occurring non-essential amino acid.

Synonym(s):

L-Cysteine, Free Base, Cys

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About This Item

Empirical Formula (Hill Notation):
C3H7NO2S
CAS Number:
52-90-4
Molecular Weight:
121.16
MDL number:
MFCD00064306
UNSPSC Code:
12352209
NACRES:
NA.54

Quality Level

100

Assay

≥98% (perchloric acid titration)

form

solid

optical activity

[α]20/D +8 to +9°, c = 5 in 1 M HCl

manufacturer/tradename

Calbiochem®

storage condition

OK to freeze

impurities

≤100 CFU/g Total microorganisms
≤24 EU/g Endotoxin

color

white

solubility

water: 10 mg/mL
1 M HCl: 50 mg/mL

cation traces

Fe: ≤10 ppm
heavy metals (as Pb): ≤0.001%

shipped in

ambient

storage temp.

15-25°C

InChI

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

InChI key

XUJNEKJLAYXESH-UHFFFAOYSA-N

Related Categories

General description

Naturally occurring non-essential amino acid.
Naturally-occurring non-essential amino acid.

Packaging

Packaged under inert gas

Warning

Toxicity: Harmful (C)

Reconstitution

Aqueous stock solutions are stable for up to 24 h at -20°C. Acidic stock solutions, when aliquoted and stored at -20°C, are stable for up to 1 month.

Legal Information

CALBIOCHEM is a registered trademark of Merck KGaA, Darmstadt, Germany

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

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’.

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