| Wako Pure Chemical Industries,Ltd. |
| 1-2,Doshomachi 3-Chome,Chuo-Ku,Osaka 540-8605,Japan |
Certificate of Analysis
| Cas号 | 【58-08-2】 |
| Product Number | : 035-06795 |
| Chemical Name | : Caffeine |
| Grade | : Wako Special Grade |
| LotNumber | : PEE2489 |
| Unit | : 500g |
| TEST | SPECIFICATION | RESULT |
| Appearance | White,crystalline powder | Passed |
| Solubility in water | to pass test（clear） | Clear |
| Melting point | 235 - 238deg. C | 236.8deg. C |
| Residue after ignition （as sulfate） | max. 0.1% | Passed |
| pH（10g/l, 25 deg. C） | 5.5 - 6.5 | 5.8 |
| Assay | min. 98.5% | 100.0% |
| Date of QC-Release |
| Nov. 18, 2008 |
