L-Cysteine Monohydrochloride USP29

Product Information

Product Name L-Cysteine Monohydrochloride USP29 CAS number 7048-04-06
Molecular Weight 240.29 Molecular Formula C6H12N2O4S2

Specifications

Synonyms (R,R)-3,3′-Dithiobis(2-Aminopropionic Acid)
Description White Crystal Powder
Specific Rotation +5.7 – 6.8 °
Loss on Drying 8.0 – 12.0%
Chloride 19-89 – 20.29%
Sulfate 0.02%max
Heavy Metals 10 ppm max
Chromatographic purity As per USP29
Residual Solvents As per USP29
pH 1.5 – 2.0
Yeast & Mold 100 cfu/gmax
Salmonella Negative
Identification As Per USP29
State of Solution 98 %min
Residue on ignition 0.1% max
Ammonium 0.02%max
Iron 10 ppm max
Arsenic 1 ppm max
OVI As per USP29
Assay 98.5 – 101.5%
Total Plate Count 1000 cfu/g max
E. Coli Negative
Staphylococcus auresu Negative / 10g
Packing options 25 kg net cartons (Other packing options are available upon request)

Packing Options

50 lb net bags (Other packing options are available upon request)

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