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Merck
CN

Specification Sheet

Product Name
D-Cysteine ≥99% (RT)

Product Number
30095

Product Brand
aldrich

CAS Number
921-01-7

Molecular Weight
121.16

Test

Specification

APPEARANCE (COLOR)Colorless or White
APPEARANCE (FORM)Powder or Crystals
REDOX TITRATION≥99 %
THIN LAYER CHROMATOGR.CORRESPONDS TO STANDARD
SPECIFIC ROTATION (20/D)-7.6 ± 1.0 Degrees
CONCENTRATIONC=5 IN HYDROCHLORIC ACID 5M
CARBON CONTENT29.74 % (THEORY)
HYDROGEN CONTENT5.82 % (THEORY)
NITROGEN CONTENT11.56 % (THEORY)
RECOMMENDED RETEST PERIOD54 MONTHS