L-Cystine dihydrochloride 98.0-102.0%, Bioreagent

Supplier: VWR

Synonyms: (2R,2'R)-3,3'-Disulfanediylbis(2-aminopropanoic acid) dihydrochloride

VWRB21502-1KGEA 1342.81 CAD
VWRB21502-1KG VWRB21502-5KG VWRB21502-100G
L-Cystine dihydrochloride 98.0-102.0%, Bioreagent
L-Cystine dihydrochloride

Suitable for bioprocessing. BSE/TSE Free. Manufactured in USA. Custom Packaging and Testing Available. Change Management. Sample availability.

Formula: C₆H₁₂N₂O₄S₂·2HCl
MW: 313.23 g/mol
MDL Number: MFCD00070399
CAS Number: 30925-07-6

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Specification Test Results

Appearance white to slightly yellow crystalline
Assay (on dried basis, by titration) 98.0% to 102.0%
Identification (by IR) matches reference IR Spectrum
Solubility (100mg/L in deionized H2O) clear and complete
Loss On Drying (@105ºC/3hrs.) NMT 1.0%
Residue On Ignition NMT 0.1%
Specific Rotation (C=2, 1N HCl, 20ºC, dried @ 105ºC) 225º to -210º
Heavy Metals (as Pb) NMT 10 ppm
Bioburden NMT 100 CFU/g
Chloride (Cl) 22.2% to 23.5%
Sulfate (SO4) NMT 0.030%
Cell Culture Toxicity Tested (@ 0.06 g/L) Passes test
Endotoxin (0.1% solution in H2O, KTA) NMT 0.1 EU/mg

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