Pyrimethamine

SKU : AP002
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CAS number

58-14-0

molecular formula

C12H13ClN4

standard

USP32

Package

25kg/drum
ITEMS LIMIT
Appearance Colourless crystal fine powder
Clarity and colour of solution  ≤BY6
Sulphate  ≤80ppm
Related Substances  ≤0.25%
Any second spot  ≤0.25%
Loss on drying  ≤0.5%
Ash  ≤0.1%
Identification Identification A  IR
Identification B  Test for Chloride
Melting range(℃)  238.0~242.0
Ordinary impurities  Complies stipulate
OVI  ≤0.2%
Residual Solvents  Complies stipulate
Assay  99.0%~101.0%

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