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Proveedores de
Trimethoprim
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Identificación | CAS |
738-70-5 | Formula |
C14H18N4O3 | EINECS |
212-006-2 |
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29 Proveedores registrados
Appearance | White or yellowish-white powder
| Solubility | Very slightly soluble in water, slightly soluble in alcohol.
| Identification |
| A Melting point | 199-203
| B Specific absorbance | Max.287nm, 240-250
| C IR-spectrum | Complies with reference spectrum
| D Chemical reaction | Green fluorescence at 365nm
| Appearance of solution | Not more intensely colored than Reference Solution BY7
| Related substances Method A by HPLC |
| Impurity F | ≤ 0.1%
| Any single impurity | ≤ 0.1%
| Total impurities | ≤ 0.2%
| Method B by HPLC |
| Any single impurity | ≤ 0.1%
| Total impurities | ≤ 0.2%
| Heavy metals | ≤ 20ppm
| Residual methanol | ≤ 3000ppm
| Residual DMSO | ≤ 5000ppm
| Residual acetic acid | ≤ 5000ppm
| Impurity K(aniline) by GC | ≤ 5ppm
| Loss on drying | ≤ 0.5%
| Sulphated ash | ≤ 0.1%
| Assay | 98.5-101.0%
| Particle size | 100% pass 300 mesh |
Molecular Formula: C14H18N4O3 Molecular Weight: 290.32 Más detalles se encuentran aquí
EINECS:212-006-2 Molecular formula:C14H18N4O3
Appearance | White or yellowish-white powder
| Melting point | 199-203℃
| Specific absorbance | Max 287nm
| Any single impurity | ≤ 0.1%
| Total impurities | ≤ 0.2%
| Heavy metals | ≤ 20ppm
| Residual methanol | ≤ 3000ppm
| Residual DMSO | ≤ 5000ppm
| Loss on drying | ≤ 1.0%
| Sulphated ash | ≤ 0.1%
| Assay | 98.5%~101.0% |
Más detalles se encuentran aquí
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Última actualización 2024-05-24 |