Acetaminophen Impurities

Find here the secondary pharmaceutical standard of the native API Acetaminophen traceable to USP, PhEur and BP.

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A-134   Acetaminophen (Paracetamol) Impurity Mixture solution 25 μg/mL in methanol (each component), certified reference material, ampule of 1 mL  
PHR1612   Acetaminophen Related Compound A Pharmaceutical Secondary Standard; Certified Reference Material 4′-Acetoxyacetanilide 4-(Acetylamino)phenyl acetate p-Acetoxyacetanilide
PHR1642   Acetaminophen Related Compound B Pharmaceutical Secondary Standard; Certified Reference Material N-(4-Hydroxyphenyl)propanamide N-Propionyl-p-aminophenol N-(4-Hydroxyphenyl)Propanamide
PHR1531 Acetaminophen Related Compound C Pharmaceutical Secondary Standard; Certified Reference Material 2′-Hydroxyacetanilide 2-Acetamidophenol N-(2-Hydroxyphenyl)acetamide NSC 3989
PHR1530 Acetaminophen Related Compound D Pharmaceutical Secondary Standard; Certified Reference Material N-Phenylacetamide Acetanilide
A-135 4′-Acetoxyacetanilide (Acetaminophen RCA) solution 250 μg/mL in acetonitrile, certified reference material, ampule of 1 mL  
A-136 4-Aminophenol 250 μg/mL in acetonitrile, certified reference material, ampule of 1 mL 4-Hydroxyaniline
PHR1148 4-Aminophenol (Acetaminophen Related Compound K) (Paracetamol Impurity K) Pharmaceutical Secondary Standard; Certified Reference Material 4-Aminophenol 4-Hydroxyaniline
PHR1149 4’-CHLOROACETANILIDE(Acetaminophen Related Compound J) Pharmaceutical Secondary Standard; Certified Reference Material 4′-Chloroacetanilide N-(4-Chlorophenyl)acetamide Acetic acid 4-chloroanilide NSC 40563 NSC 444
C-166 4-Chloroacetanilide (Acetaminophen RCJ) hydrochloride solution 250 μg/mL in acetonitrile, certified reference material, ampule of 1 mL  
PHR1150 4-NITROPHENOL (Acetaminophen Related Compound F)(Paracetamol Impurity F) Pharmaceutical Secondary Standard; Certified Reference Material 4-Nitrophenol p-Nitrophenol