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Ms.Amber Ms.Florence Ms.Lisa Ms.EllenCAS NO.112965-21-6
99%(100-249)Gram99%(250-499)Gram99%(500--1)Gram
Supply 99% CAS 112965-21-6 Calcipotriol Calcipotriene Powder | ||
Product Name: | Calcipotriol/ Calcipotriene | |
CAS NO.: | 112828-00-9 | |
Mol. Formula: | C27H40O3 | |
M. W.: | 412.6 | |
Purity: | ≥98.0% HPLC | |
Appearance: | White crystalline powder | |
Items | Specification | Results | ||
Appearance | White or almost white, crystalline powder | Complies | ||
Solubility | Practically insoluble in water, freely soluble in ethanol,(96%), slightly soluble in methylene chloride (96 percent), slightly soluble in methylene chloride | Complies | ||
Identification | Infrared spectrum corresponds to that of the standard preparation | Complies | ||
The retention time of the major peak in the chromatogram corresponds to that in the chromatogram of standard preparation | Complies | |||
Related Substances by TLC | Impurity A ((5Z,7E,22E)-24-cyclopropyl-1α,3β-dihydroxy-9,10-secochola-5,7,10(19),22-tetraen-24-one): NMT 0.25% | Complies | ||
Impurity G (24,24-oxybis[(5Z,7E,22E,24S)-24-cyclopropyl-9,10-secochola-5,7,10(19),22-tetraene-1α,3β-diol]) : NMT 0.25% | Complies | |||
Impurity H ((5Z,7E,22E,24R)-24-cyclopropyl-24- [[(5Z,7E,22E,24S)-24-cyclopropyl-1α,3β -dihydroxy-9,10-secochola-5,7,10(19),22-tetraen-24-yl]oxy]-9,10-secochola-5,7,10(19),22-tetraene-1α,3β-diol): NMT 0.25% | Complies | |||
Any other impurity : NMT 0.1% | Complies | |||
Related Substances by HPLC | Impurity B ((7Z)-calcipotriol) : NMT 0.5% | ND | ||
Impurity C ((5E)-calcipotriol) : NMT 1.0% | 0.50% | |||
Impurity D (24-epi-calcipotriol) : NMT 1.0% | 0.66% | |||
Any other impurity: NMT 0.1% | 0.09% | |||
Total impurities : NMT 2.5% | 1.25% | |||
Residual Solvents | Acetone : NMT 5000ppm | 630ppm | ||
Ethyl acetate : NMT 5000ppm | ND | |||
n-Hexane : NMT 290ppm | ND | |||
Methanol : NMT 3000ppm | ND | |||
Dichloromethane : NMT 600ppm | ND | |||
Loss on Drying | NMT 0.5% | 0.27% | ||
Content | 95.5%-102.0% (dried substance) | 98.26% | ||
Conclusion:The above substance has been tested according to EP6.0 Standard, and it meets requirements. Storage: In an airtight container, protected from light at -20°C or below. Shelf life: Two years when stores properly. | ||||
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