Calcium Dobesilate Monohydrate
 

Chemical Name: Calcium Di (2,5-dihydroxybenzenesulphonat)

Molecular Formula: C12H10CaO10S3 ·H2O

Molecular weight: 436 .4

Cas NO: [20123-80-2]

Characteristics:    The product contains not less than 99.0 percent and more than the equivalent of 102.0 percent of Calcium di (2,5-dihydroxybenzenesulphonat), calculated with reference to the anhydrous substance. A white or almost white, hygroscopic powder, very soluble in water, freely soluble in ethanol very slightly soluble in 2-propanol, practically insoluble in methylene chloride

Quality Standards: BP2000, EP5

Specification Sheet
(BP2000 / EP5)

 

Expiry date : 1 years
Packaging: 25kg/drum

Items

Specifications

Identification

Positive

Appearance

White or almost white Hygroscopic powder

Assay (on dried matter), %

99.0 ~ 102.0

PH value

4.5 ~ 6.0

Appearance of solution

Clear

Heavy metals (as Pb), ppm

≤10

Water, %

4.0 ~ 6.0

Iron (as Fe), ppm

≤10

Relative impurities,%

=0.1 ( Thin-layer chromatograph )

 
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