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 Pharma Intermediates and APIs >> Cholestyramine (USP standard)

We can supply Cholestyramine which meets USP Standard,

CAS: 11041-12-6

Synonyms: cholestyramine resin;Questran;colestyramine

The specifications as following:

Test items 
Standard
Appearance
White or off-white powder, odorless or some amine smell; Moisture absorption
Identification
IR absorption spectrogram comply with reference standard spectrogram
Test
 
Acidity
PH 4.0-6.0
Dialysis quaternary
Complies
Ammonium Chloride
13.0-17.0% (on drying basis)
Loss on drying
12.0% max
Residue on ignition
0.1% max
Heavy metals
Complies
Mircobial Test
 
Total plate count
1000/g max
Yeast and Mold
100/g max
E.Coli
Negative
Active Acarus
Negative
Exchange capacity
Exchange sodium taurocholate per gram should be 2.0-2.2g on drying basis