L(-)-Cystine 98,5-101,5, Multi-comp_meetSpec_BP,Ph.Eur., J.T.Baker®

Supplier: Avantor

Synonyms: (R)-(-)-Cystine, (2R,2'R)-3,3'-Disulphanediylbis(2-aminopropanoic acid), (H-Cys-OH)2

2073-06EA 87220.75 INR
2073-06
L(-)-Cystine 98,5-101,5, Multi-comp_meetSpec_BP,Ph.Eur., J.T.Baker®
L(-)-Cystine
Formula: HOOCCH(NH₂)CH₂SSCH₂CH(NH₂)COOH
MW: 240.3 g/mol
Boiling Pt: 428
Melting Pt: 261…262 °C
Density: 1.677 g/cm³ (20 °C)
Storage Temperature: Ambient
MDL Number: MFCD00064228
CAS Number: 56-89-3
EINECS: 200-296-3
Merck Index: 13,02811

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Specification Test Results

Meets E.P. Chemical Specifications
Meets B.P. Chemical Specifications
GMP Manufactured Product
CAUTION: For Manufacturing, processing or repackaging
Bulk Pharmaceutical Chemical
EP/BP - Assay (C₆H₁₂N₂O₄S₂) (dried basis) 98.5 - 101.0 %
EP/BP - Identification A Passes Test
EP/BP - Identification B Passes Test
EP/BP - Appearance of Solution Passes Test
EP/BP - Specific Rotation [Å]²º^D -224 - -218 Degree
EP/BP- Ninhydrin-Positive Substances - Any Ninhydrin-Positive Substances ≤0.2 %
EP/BP-Ninhydrin-Positive Substances-Total Ninhydrin-Positive Substances ≤0.5 %
EP/BP - Chloride (Cl) ≤200 ppm
EP/BP - Sulfate (SO₄) ≤300 ppm
EP/BP - Ammonium (NH₄) ≤0.02 %
EP/BP - Iron (Fe) = 10 ppm
EP/BP - Loss on Drying at 105°C = 0.5 %
EP/BP - Ash (sulfated) = 0.1 %
Endotoxin Concentration, IU/mg ,For Information Only = 0.2 %
No Class 1,2,3 or other solvents are used or produced in the = 0.5 %
manufacturing or purification of the product. = 200 ppm
Metallic Residues: No metal catalysts or metal reagents, as defined by = 300 ppm
EMA Guideline EMEA/CHMP/SWP/4446/2000 , are used in the production of = 0.02 %
this material. = 10 ppm
Endotoxin Concentration, IU/mg For Information Only


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