China Good Price S-Adenosyl-L-Methionine CAS: 29908-03-0, Find details about China S-Adenosyl-L-Methionine, 29908-03-0 from Good Price S-Adenosyl-L-Methionine CAS: 29908-03-0
| Test item | Specifications | Result |
| Appearance | White or off-white powder | Conforms |
| identification | IR:Infrared spectra of the samples were consistent with the reference | Conforms |
| UV: the biggest absorption at the wavelength 258nm, the shorest absorption at the wavelength 227nm | Conforms | |
| HPLC: correspond to the The retention time of the major peak in the chromatogram of the standard preparation | Conforms | |
| Clarity and color of solution | Conform to requirement | Conforms |
| Specific rotation | +28 °~+34° | +30.4° |
| Water | ≤3.0% | 2.5% |
| PH(0.4%water solution) | 1.8~2.5 | 2.34 |
| Residue on ignition | ≤0.1%(injection); ≤0.2%(Oral) | 0.05% |
| Heavy metals | ≤10ppm | <10ppm |
| SAME content(Anhydrous,HPLC) | 50.0%~54.0% | 51.6% |
| Adenine | ≤0.5% | 0.01% |
| S-adenosyl-L-Homnocystein | ≤0.5% | <0.01% |
| methylthioadenosine | ≤0.5% | 0.08% |
| IP-5 | ≤1.5% | 0.76% |
| The other singal impurities | ≤0.1% | 0.04% |
| The other total impurities | ≤1.0% | 0.13% |
| Total impurities | ≤2.5% | 0.98% |
| (S.S)isomer | 60.0%~75.0% | 68.4% |
| 1,4-Butanedisulfonate | 46.0~49.0% | 46.4% |
| assay | ≥97.0% | 98.0% |
| Bacterial endotoxin | ≤0.25EU/g(injection) | <0.25EU/mg |
| Total bacteria | ≤200CFU/g | 20 CFU/g |
| Yeast mold | ≤100 CFU/g | 28 CFU/g |
| E.Coli | Negative | conforms |
| conclusion | Conformed with the requirement | |