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Home/Compounds/API/Sulfamethoxazole
C10H11N3O3S
253.28 g/mol
APIWarning

Sulfamethoxazole

CAS723-46-6EC211-963-3
Category
API
Compound Class
Amine
Primary Use
Pharmaceutical Raw Material

Sulfamethoxazole is a sulfonamide antibiotic compound used as an active pharmaceutical ingredient in manufacturing. It is commonly paired with trimethoprim to produce antibacterial preparations.

antibacterial active pharmaceutical ingredientcomponent in trimethoprim combination formulations

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

Metoclopramide hydrochloride

CAS7232-21-5

pharmaceutical raw material

ReferenceSame Category

Hepronicate

CAS7237-81-2

pharmaceutical raw material

ReferenceSame Category

Betaxolol hydrochloride

CAS72424-72-7

pharmaceutical raw material

ReferenceSame Category

Miglitol

CAS72432-03-2

pharmaceutical raw material

Referencestereoisomer of

4-amino-2,3,5,6-tetradeuterio-N-(5-methyl-1,2-oxazol-3-yl)benzenesulfonamide

CAS1020719-86-1

pharmaceutical raw material

Referencesame scaffold

Nitrososulfamethoxazole

CAS131549-85-4

research compound

Referencesame scaffold

N-Acetyl Sulfamethoxazole-d4 (major)

CAS1215530-54-3

research compound

Safety Reference

Harmful
Harmful
Health Hazard
Health Hazard
Environmental Hazard
Environmental Hazard
Warning
H315Causes skin irritation
H317May cause an allergic skin reaction
H319Causes serious eye irritation
H335May cause respiratory irritation
H400Very toxic to aquatic life
H410Very toxic to aquatic life with long lasting effects
H341Suspected of causing genetic defects
H350May cause cancer

Customs Tariff Classification

The international HS code for Sulfamethoxazole (CAS 723-46-6) is 2935.90.

HS code (international, 6-digit)

2935.90

EU CN code (8-digit)

2935 90 90

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

4-amino-N-(5-methyl-1,2-oxazol-3-yl)benzenesulfonamide

InChIKey

JLKIGFTWXXRPMT-UHFFFAOYSA-N

SMILES

CC1=CC(=NO1)NS(=O)(=O)C2=CC=C(C=C2)N

Synonyms (79)
  • A047
  • SMX
  • Sulfamethoxazole (JP17/USP/INN)
  • Sulfamethoxazole(USAN)
  • Sulfamethoxazole, British Pharmacopoeia (BP)
  • Sulfamethoxazole, European Pharmacopoeia (EP)
  • Sulfamethoxazole, United States Pharmacopeia (USP)
  • Sulfamethoxazolum [INN-Latin]
  • Sulfametoxazol [INN-Spanish]
  • Azo-gantanol
  • Bactrim
  • Co-trimoxazole (Salt/Mix)
  • Eusaprim (Salt/Mix)
  • Gamazole
  • Gantanol
  • Gantanol-DS
  • MS 53
  • Metoxal
  • Radonil
  • Ro 4-2130
  • Ro 6-2580/11
  • SULFAMETHOXAZOLE [MART.]
  • Septran (Salt/Mix)
  • Septrin (Salt/Mix)
  • Simsinomin
  • Sinomin
  • Solfametossazolo
  • Sulfamethalazole
  • Sulfamethoprim
  • Sulfamethoxazol
  • Sulfamethoxazole (Standard)
  • Sulfamethoxazole CRS
  • Sulfamethoxazole RS
  • Sulfamethoxazolum
  • Sulfamethoxizole
  • Sulfamethylisoxazole
  • Sulfametoxazol
  • Sulfisomezole
  • Sulmeprim
  • Sulpha-methoxizole
  • Sulphamethoxazol
  • Sulphamethoxazole
  • Sulphamethylisoxazole
  • Sulphisomezole
  • Suphamethoxazole
  • Urobak
  • sulfamethoxazole
  • sulfametoxazolo
  • ulfamethoxazole

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