Welcome to contact me with following chat apps:

Name	4-Acetamidophenol
CAS	103-90-2	Molecular Weight	151.163
Density	1.3±0.1 g/cm3	Boiling Point	387.8±25.0 °C at 760 mmHg
M F	C8H9NO2	Melting Point	168-172 °C(lit.)

  Acetaminophen is an acetanilid antipyretic analgesic. By inhibiting cyclooxygenase, selectively inhibiting the synthesis of prostaglandin in the hypothalamic body temperature regulation center, leading to peripheral vasodilation and sweating to achieve antipyretic effect, the intensity of antipyretic effect is similar to aspirin; by inhibiting the synthesis of prostaglandins, etc. And release, increase the pain threshold and play an analgesic role, which belongs to peripheral analgesics, the effect is weaker than aspirin, only effective for mild to moderate pain. Test Report

Tests	Standards	Results
Appearance	White or almost white ,crystalline powder.	White,crystalline powder.
Identification	A:IR absorption	Complies
	B:UV absorption	Complies
	C:TLC	Complies
Melting point	168~172°C	169.0~170.9°C
Water	Not more than0.5%	0.08%
Related substance	ImpurityJ(chloroacetanilide)not more than 10 ppm	2ppm
	Impurity K(4-aminophenolly)not more than 50 ppm	15 ppm
	Impurity F(4-nitrophenolly)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%	99.6%
Conclusion:   Complies with USP34/ BP2011

Sales Reference