C8H9NO2
151.16 g/mol
Pharmaceutical IntermediateWarning
3-Hydroxyacetanilide
CAS621-42-1EC210-687-0
Category
Pharmaceutical Intermediate
Compound Class
Amide
Primary Use
Pharmaceutical Intermediate
3-Hydroxyacetanilide, also known as metacetamol, is a regioisomer of paracetamol. It has analgesic and antipyretic properties but has never been marketed as a drug and is used primarily as a pharmaceutical intermediate and research compound.
pharmaceutical intermediateresearch compound
Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.
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Related Compounds
ReferenceSame Category
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CAS621-59-0
pharmaceutical intermediate
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pharmaceutical intermediate
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Boc-4-Iodo-L-phenylalanine
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pharmaceutical intermediate
ReferenceSame Category
Methyl (E)-3-iodoacrylate
CAS6213-88-3
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Safety Reference
Warning
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
Customs Tariff Classification
The international HS code for 3-Hydroxyacetanilide (CAS 621-42-1) is 2924.29.
HS code (international, 6-digit)
2924.29
EU CN code (8-digit)
2924 29 70
Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.
Identifiers
IUPAC Name
N-(3-hydroxyphenyl)acetamide
InChIKey
QLNWXBAGRTUKKI-UHFFFAOYSA-N
SMILES
CC(=O)NC1=CC(=CC=C1)O
Synonyms (35)
- Metacetamolum [INN-Latin]
- 3-(Acetylamino)phenol
- 3-ACETAMINOPHENOL
- 3-Acetamidophenol
- 3-Hydroxyacetanilid
- 3-Hydroxyacetanilide
- Acetanilide, 3'-hydroxy-
- BS 479
- BS 749
- Bosutinib Impurity 34
- M-HYDROXYACETANILIDE
- Metacetamol
- Metacetamolo
- Metacetamolum
- Metalid
- N-(3-Hydroxyphenyl)acetamide
- N-Acetyl-m-aminophenol
- N-m-hydroxyphenylacetamide
- Paracetamol Impurity 19
- Pedituss
- Pharmakon1600-00211175
- Pyrapap
- Rystal
- acetyl-2-aminophenol
- acetyl-m-aminophenol
- m-(Acetylamino)phenol
- m-Acetamidophenol
- m-Acetaminophenol
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