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济南温莎医药科技有限公司
主营：(R)-,5-氯-3-吡唑[15-A]嘧啶,二甲氨基一代甲酰氯 - 15335316686
济南温莎医药科技有限公司
主营：(R)-,5-氯-3-吡唑[15-A]嘧啶,二甲氨基一代甲酰氯
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Test Items Specifications Results Appearance white to almost white crystalline powder White crystalline powder Identification IR HPLC Must conform to reference standard Must conform to reference standard Conforms Conforms Absorbance NMT0.02 0.008 Water NMT 2.0% 0.76% Residue on Ignition NMT0.1% 0.04% Heavy Metals NMT 0.001% ﹤0.001% Related compounds R-isomer Compound B Compound C Any other individual impurity Total impurities (excluding R-isomer) NMT 1.0% NMT 0.2% NMT 0.1% NMT 0.1% NMT 0.3% 0.60% 0.03% Conforms 0.04% 0.15% Residual solvents Ethyl acetate Dichloromethane Methanol N,N-Dimethylformamidc NMT 0.5% NMT 0.06% NMT 0.3% NMT 0.088% 0.20% Conforms Conforms 0.008% Assay (HPLC) 98.0-102.0% 99.4% Conclusion:It conforms to USP31.