≥1 Kilograms
$91.20
Chemical Name: Ufiprazole
CAS No.: 73590-85-9
Molecular Fomula:C17H19N3O2S
Molecular weight: 329.42
Appearance: White powder
Assay:99%
Inspection Items | Accepted Standard | Results |
Appearance | White or off white powder,Odourless, tasteless,very soluble in hot water, practically insoluble inchloroform, acetone. | Off white powder |
Optical rotation | 185.0°~195.0° | 189° |
clarity and color of solution | λ400nm absorbance <0.05,turbidity not deeper than NO1 standard | Complies |
Identification | (1)To complies positive reaction | Complies |
(2) complies with standard | Complies | |
pH | 4.5~6.5 | 5.1 |
Intrinsic viscosity [η] | 15.0~19.0 | 17.7 |
Heavy metals | ≤ 10ppm | Complies |
Loss on drying | ≤ 5.0% | 2.4% |
Sodium chloride(NaCl) | ≤ 0.6% | 0.06% |
MS | 0.43~0.55 | 0.48 |
Glycol | ≤ 0.062% | Complies |
≤ 0.001% | Complies | |
Chlorethyl alcohol | ≤ 0.0005% | Complies |
weight-average molecular weight | 190000~290000 | 231300 |
weight-average molecular weight(10%department) | ≤780000 | 562200 |
weight-average molecular weight(90%department) | ≥13000 | 48600 |
Should complies | Complies | |
≤ 10EU/g | Complies | |
Should complies (Mould and yeast≤ <10CFU/G) | Complies | |
Assay | ≥98.5%(on dry base,deducts the sodium chloride) | 99.8% |
Omeprazole sulfide is an important intermediate of esomeprazole sodium.
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