Dithranol (Anthralin),1143-38-0 1.CAS:1143-38-0 2.Documents:USP31; CP2005 3.Formula:C14H10O3 4.Formula Weight: 226.23
5.Specifications
ITEMS | SPECIFICATION | RESULTS |
Identification A Infrared absorption B Ultraviolet absorption | According to criterons According to criterons | Conforms Conforms |
M.P. | 178--181ºC | 179ºC |
Acidity or alkalinity | According to coriterons | Conforms |
Loss on drying | Not more than 0.5% | 0.09% |
Residue on ignition | Not more than 0.1% | 0.04% |
Chioride | According to coriterons | Conforms |
Sulfate | According to coriterons | Conforms |
Residual solvents | According to coriterons | Conforms |
Assay | Anthralin contains not less than 97.0 percent and not more than 102.0 percent of C14H10O3, calculated on the dried basis. | 99.2% |
Conclusion:It corresponds to prescription of USP31. | ||
****************************************************************6.Sinoway's advantages:
(1)ISO 9001:2008 certificated company
(2)26 years in herbal extract industry
(3)China office of Fischer Chemicals AG (Switzerland)
Dithranol (Anthralin) Cas:1143-38-0
