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D-Cycloserine USP Grade
CAS# [68-41-7]
C3H6N2O2
TEST SPECIFICATION RESULT
Appearance White pale yellow or crystalline powder Complies
Identification Passes Test Complies
pH 5.5 – 6.5 (1 in 10) 6.0
Loss on Drying < 1.0% 0.11%
Condensation Products < 0.80 at 285 nm 0.051 nm
Residue on Ignition < 0.50% 0.40%
Specific Rotation +108o - +114o +111.8o
Volatile Impurities:
Ethanol < 1000 ppm Complies
Crystallinity Passes Test Complies
Assay > 900 μg/mg 995.5 μg/mg
Applications: D-Cycloserine USP interferes with bacterial cell wall synthesis by competing with D-Alanine for incorporation into the cell wall. Active against most mycobacteria with some activity against gram negative bacteria.
Research or further manufacturing use only, not for food or drug use.