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ADD.: Rm 1013,BLDG 3,Area C,Hankou City Plaza,Houhu Avenue,Wuhan
地址：武汉市江岸区后湖大道汉口城市广场C区3号楼1013
网址：www.zoyochem.com
| ITEMS | STANDARD |
| Product | Caffeine Anhydrous |
| Characteristics | White or almost white, crystalline powder (BP/EP) or silky, white or almost white, crystals |
| Melting Point | 234.0-239.0°C (BP/EP) |
| Infrared Absorption | Conforms to the caffeine Reference Spectrum (BP/EP) |
| Loss on drying | See Tests (BP/EP) |
| Appearance of solution | Clear,colourless (BP/EP) |
| Heavy metals | ≤ 0.001% (USP) |
| Sulphate | ≤ 500ppm (BP/EP) |
| Each impurity A,B,C,D,E,F | ≤ 0.10% (BP/EP) |
| Unspecified impurities | ≤ 0.10% (BP/EP) |
| Total impurities | ≤ 0.10% (BP/EP) |
| Any individual impurity | ≤ 0.10% (USP) |
| Total impurities | ≤ 0.10% (USP) |
| Loss on drying | ≤ 0.50% (BP/EP) |
| Residue on ignition | ≤ 0.10% (USP) |
| Assay | 98.5-101.0%(USP) |
| Storage condition | Keep in a tightly closed container |
