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PABA
CERTIFICATE OF ANALYSIS
PABA (p-Aminobenzoic acid) DATE: JAN. 31,2000
Item Specifications RESULT RESULT RESULT RESULT
Batch No. 20000121 20000122 20000123 20000124 20000125
Quantity 1000kilos 1000kilos 1000kilos 1000kilos 1000KGS
Outer appearance White Crystalline powder White Crystalline powder White Crystalline powder White Crystalline powder White Crystalline powder
Melting point 187°~ 188℃ 187°~ 188℃ 187°~ 188℃ 187°~ 188℃ 187°~ 188℃
Loss on drying 0.18% 0.19% 0.17% 0.18% 0.19%
Residue on Ignition ≤0.1% 0.09% ≤0.1% ≤0.09% 0.09%
Heavy Metals 18ppm 18ppm 18ppm 18ppm 18ppm
Salted Substance 0.04% 0.04% 0.04% 0.04% 0.04%
Volatile Diazotizable substances 0.0018% 0.0019% 0.0018% 0.0018% 0.0018%
Assay 99.56% 99.68% 99.60% 99.65% 99.60%
Tested date: Jan.21, 2000 Jan.22, 2000 Jan.23, 2000 Jan. 24, 2000 Jan. 25, 2000
Conclusions Conforms to USP23 Conforms to USP23 Conforms to USP23 Conforms to USP23 Conforms to USP23
Quality control ZCM ZCM ZCM ZCM ZCM

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