Clioquinol

Clioquinol
         CLIOQUINOL-BP
   
CAS NO   : 130-26-7            FORMULA           : C9H5CllNO
GRADE     : BP                FORMULA WT     : 305.5
   
TEST SPECIFICATION
Description Almost white, light yellow, brownish yellow or yellowish-grey powder       
Solubility Practically insoluble in water Sparingly Soluble in methylene Chloride, very slightly soluble or slightly soluble in ethanol (96%)                                      
Identification Complies
Assay (ODB) 98.0-102.0%
Acidity or alkalinity Complies
Related substance Impurity A : 2.0%
Impurity B : 1.0%
Impurity C : 1.0%
Unspecified impurities: 0.10%
Total nominal content of impurities A,B,C & unspecified impurities: 3.0%
Disregard limit: The area of the principal peak in the chromatogram obtained with reference solution (c) : 0.05%
Halides Max 0.014%
Loss on drying Max 0.5%
Sulphated ash Max 0.1%

 

         CLIOQUINOL-IP
   
CAS NO   : 130-26-7            FORMULA           : C9H5CllNO
GRADE     : IP                FORMULA WT     : 305.5
   
TEST SPECIFICATION
Description A yellowish white to brownish yellow powder;odour, faint and characteristic.
                                                                                               
Solubility Freely soluble in dimethyl formamide and in   pyridine; practically insoluble in ethanol (95 per cent) and in water.
                                                                     
Identification Complies
Assay (ODB) 97.0-103.0%
Acidity or alkalinity Complies
Free iodine Complies
Halide ions Complies
Related substance 1) The total content of the named impurities does not exceed 3.0% w/w,
2)The content of any other impurity does not exceed 0.2 % w/w
3)The sum of the contents is not more than 4.0 % w/w.
Sulphated ash min.0.2%
Loss on drying min.0.5%

 

     CLIOQUINOL-USP
   
CAS NO   : 130-26-7            FORMULA           : C9H5CllNO
GRADE     : USP                FORMULA WT     : 305.5
   
TEST SPECIFICATION
Description Volminous, spongy,Yellowish-white to brownish-yellow powder having a slight, characteristic odour. Darkness on   exposure to light. Melts at about 1800c with decomposition   
Solubility Soluble in hot ethyl acetate & in hot glacial acetic acid, Practically insoluble in water & in alcohol.
Identification Complies
Assay (ODB) 93.0-100.5%
Residue on ignition Max 0.5%
Loss on drying (1500c,6 hrs): max 0.5%
Free iodine & iodide max 0.05% of Iodide