Omeprazole 2-Chloromethyl-3,5-dinmethyl-4-methoxypyridine CAS:73590-58-6
Production name | Omeprazole |
CAS No. | 73590-58-6 |
Appearance | White to off white crystalline powder |
Molecular Formula | C17H19N3O3S |
Molecular Weight | 345.416 |
Assay | 99% |
Items | standards | results |
appearance | white or almost white powder | complies |
solubility | very slightly soluble in water,soluble in methylene chlori,sparingly soluble in ethanol(96 per cent)and in methano it dissolves in dilute solutions of alkali hydroxides | complies |
identification | IR | complies |
appearance of solution | solution S is clear | complies |
impurities F and G | absorbance of solution S:0.10max | 0.0085 |
related substances | impurity D:0.10%max | 0.030% |
impurity E:0.10%max | 0.012% | |
any individual unspecified impurity:0.10%max | not detected | |
total:0.5% max | 0.04% | |
loss on drying | 0.2% max | 0.09% |
residual solvents | methylene chlori:600ppm max | not detected |
methan:3000ppm max | 98ppm | |
sulfated ash | 0.1%max | 0.04% |
particle size | D50:2μm~3μm | 2μm |
D90:5μm~7μm | 6μm | |
assay | 99.0%~101.0% | 99.8% |
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