CAS 103-90-2 4-Acetamidophenol/Paracetamol

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Product Code : CAS 103-90-2

Brand Name : DM

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CAS 103-90-2 4-Acetamidophenol/Paracetamol

Tests	Standards		Results
Appearance	White or almost white ,crystalline powder.		White,crystalline powder.
Identification	A:IR absorption	Complies	Complies
	B:UV absorption	Complies	Complies
	C:TLC	Complies	Complies
Melting point	168~172C		169.0~170.9C
Water	Not more than0.5%		0.08%
Related substance	Impurity(chloroacetanilide)not more than 10 ppm		2ppm
	Impurity K(4-aminophenol)not more than 50 ppm		15 ppm
	Impurity F(4-nitrophenol)not more than 0.05%		Not detected
	any other impurity not more than 0.05%		0.01%
	Total of other impurities not more than 0.1%		0.02%
Residue on ignition	Not more than 0.1%		0.05%
Chloride	Not more than 0.014%		Less than 0.014%
Sulfate	Not more than 0.02%		Less than 0.02%
Sulfide	Conforms		Conforms
Heavy metals	Not more than 0.001%		Less than 0.001%
Free p-aminophenol	Not more than 0.005%		Less than 0.005%
Limit of P-chloroacetanilide	Not more than 0.001%		Less than 0.001%
Readily carbonizable substances	Conforms		Conforms
Residual solvents	Residual content of acetic acid is limited by the test of loss on dryingnot more than0.5%		0.08%
Assay(anhydrous basis)	99.0~101.0%		99.60%
Conclusion: Complies with USP34/ BP2011