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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
| ITEM | STANDARD |
| Identification | Positive |
| Melting point of insolated saccharin ℃ | 226-230 |
| Appearance | White crystals |
| Content % | 99.0-101.0 |
| Loss on drying % | ≤ 15 |
| Ammonium salts ppm | ≤ 25 |
| Arsenic ppm | ≤ 3 |
| Benzoate and salicylate | No precipitate or violet color appears |
| Heavy metals ppm | ≤ 10 |
| Free acid or alkali | Complies with BP /USP/DAB |
| Readily carbonizable substances | Not more intensely colored than reference |
| P-tol sulfonamide | ≤ 10ppm |
| O-tol sulfonamide | ≤ 10ppm |
| Selenium ppm | ≤ 30 |
| Related substance | Complies with DAB |
| Clarity and color solution | Color less clear |
| Organic volatiles | Complies with BP |
| PH value | Complies with BP/USP |
| Benzoic acid-sulfonamide | ≤ 25ppm |
