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D-Cycloserine CAS:68-41-7 << 返回
ItemLimit
DescriptionWhite to pale yellowish crystalline powder
Specific Rotation [a]D20o108o to 114o
Appearance of solutionColorless, clear
Identification A blue color gradually develops
CrystallinityConfirmed
Condensation ProductNot more than 0.80(at 285nm)
Loss on DryingNot more than 1.00%
Residue in IgnitionNot more than 0.5%
Elemental Analysis
-Carbon34.6 to 36%
-Nitrogen26.4 to 27.9%
Organic Volatile Impurities
-Ethanol100ppm Max
-Methanol50ppm Max
AssayMin 900µg/mg
PH5.5 to 6.5
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