Acetaminophen NO. 103-90-2

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Acetaminophen NO. 103-90-2

Acetaminophen price

Acetaminophen NO. 103-90-2

Acetaminophen works mainly through the central mechanism by inhibiting the synthesis of prostaglandins by COX-3 in the central nervous system, providing antipyretic and analgesic effects. It has fewer toxic side effects and is easier to tolerate, making it a safer antipyretic.

  • Item NO.:

    CAS NO. 103-90-2
  • Color:

    A white, or almost white, crystalline powder
  • Package:



Acetaminophen is a white crystalline powder that is odourless and has a slightly bitter taste. It is easily soluble in hot water or ethanol, soluble in acetone, and almost insoluble in cold water and petroleum ether.






Appearance:A white, or almost  white,crystalline powder.
Solubility:Sparingly soluble in water,freely soluble in ethanol,very slightly soluble in methylene chloride

Identification (a)

Melting point: 168-172℃

Identification (b)

IR spectrum conforms to that of the reference standard

Related Substances

Impurity J: 4-Chloroacetanilide: ≤10ppm

Impurity K: 4-Aminophenol: <50ppm

Unspecified impurities: ≤0.05%

Total impurities: ≤0.2%

Loss on Drying


Sulfated Ash


Assay (Dried Substance)


Microbial Limit

Total Aerobic Microbial: <1000CFU/g
Total Yeasts and Molds Count: <100CFU/g




Acetaminophen application

Acetaminophen has antipyretic, analgesic and anti-inflammatory effects, the effect is similar to aspirin, for large-scale farms of livestock and poultry, winter is most likely to be infected with a variety of epidemic viruses, at this time, acetaminophen can be used as an auxiliary ingredient to accelerate the health of the livestock and poultry and to improve the profitability of farming.



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