China S-Adenosyl-L-Methionine Disulfate Tosylate (SAMe) 98% USP37, Find details about China Pharmaceutical Raw Material, Pharmaceutical Chemical from S-Adenosyl-L-Methionine Disulfate Tosylate (SAMe) 98% USP37
| Analytical Items | Standard | |
| Appearance | Almost white powder, Soluble in water | |
| Identification | 1) Chemical reaction | |
| 2) IR:consistent with the spectrum obtained with reference substance | ||
| 3) HPLC:the retention time of a major peak meets the 1.0-2.0 | ||
| Acid value | 1.0-2.0 | |
| Clarity and color of solution | Not more intensely colored than reference solution Y2 | |
| Heavy metals | ≤ 10ppm | |
| Water | ≤ 2.5% | |
| S-adenosyl-L-Homocysteine | ≤ 0.5% | |
| Methylthioadenosine | ≤ 2.0% | |
| Adenine | ≤ 0.5% | |
| Total Yeasts and Molds | ≤ 100cfu/g | |
| Total bacterial count | ≤ 1000cfu/g | |
| (S,S)Isomer | ≥ 60.0% | |
| Endotoxin | ≤ 0.3EU/mg | |
| P-toluenesulfonati cacid | 21.0%~24.0% (basis on dried) | |
| Sulfates | 23.5%~26.5% (basis on dried) | |
| Ademetionine | ≥ 49.5% (basis on dried) | |
| Residue on Ignition | ≤ 0.5% | |
| Total content | ≥ 96.0% | |