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CAS NO.128-13-2
99%(2-24)Kilogram99%(25--1)Kilogram
Best Price CAS 128-13-2 UDCA Ursodeoxycholic Acid Powder | ||
Product Name: | Ursodeoxycholic Acid | |
CAS No.: | 128-13-2 | |
Other Names: | UDCA | |
MF: | C24H40O4 | |
Grade Standard: | Medicine Grade | |
Purity: | 99% min | |
Appearance: | White or almost white powder |
NATURE OF TEST | QUALITY STANDARD | TEST RESULTS | ||
CHARACTERS: | ||||
-Appearance | White or almost white powder | Conforms | ||
-Solubility | Practically insoluble in water, freely soluble in ethanol (96 per cent), slightly soluble in acetone, practically insoluble in methylene chloride. | Conforms | ||
TESTS: | ||||
-Melting point | About 202 ℃ | 203℃ | ||
-Identification | - IR The spectrum obtained is similar to that of CRS | Conforms | ||
-Sepcific optical rotation | + 58.0~+62.0 | +61.7° | ||
-Sulphate Ash | ≤ 0.1 % | 0.02% | ||
-Related substances(TLC) | - Chenodeoxycholic Acid ≤ 1 % | < 1 % | ||
- Lithocholic Acid ≤ 0.1 % | not detected | |||
- Cholic Acid ≤ 0.5 % | not detected | |||
- any other impurity ≤ 0.25 % | not detected | |||
-Loss on Drying | ≤ 1.0 % | 0.08 % | ||
-Heavy metal | ≤ 20 ppm | < 20 ppm | ||
ASSAY : | -On dry substance 99.0 %~101.0 % | 100.5% | ||
RESIDUAL SOLVENTS: | - Methanol ≤3000 ppm not detected | Conforms | ||
- Isopropanol ≤5000 ppm 2423 ppm | ||||
- Ethylacetate ≤5000 ppm 40 ppm | ||||
MICROBIOLOGICAL TESTS: | ||||
-Total Plate Count /1 g | < 1000 | < 10 | ||
-Yeast & Mould /1 g | < 100 | < 10 | ||
-E. coli /1 g | Absent | Absent |