Sulfadiazine sodium

Drug ingredient

CAS 547-32-0

This chemical is an active pharmaceutical ingredient used in FDA-regulated drugs.

US productionNot reported

Import value, 2024$2.0B

Top sourceIreland 63%

This chemical is not on EPA’s Toxic Substances Control Act inventory, the list behind EPA’s production survey.

Why supply is unknown

Production is reported production, not a complete census of factories. Import value and source-country shares describe a shared customs category, not a separate chemical measurement.

Where It Comes From

Customs basis: HS 293590 · basket

These shares come from HS customs code 293590, which covers 182 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries

Country of origin for US imports, from Census customs data (2024).

IE 63%IrelandSG 14%SingaporeIN 7%IndiaCN 7%ChinaCH 2%Switzerland

Portugal
Spain
Italy
Austria
Israel
Hungary
Canada
South Korea
Netherlands
Finland
Poland
Indonesia
Ukraine
Mexico
South Africa
Croatia
Greece
Taiwan
Hong Kong

4 FDA-registered drug labelers

Kalchem International inc

Laboratorium Ofichem BV

Medisca Inc

Wugan Pharmaceutical (Suzhou) Co., Ltd.

Why It Matters

Sectors

Health

Downstream UsesNot recorded

FDA Shortage Status

Whether any manufacturer currently reports this drug as in shortage on the FDA Drug Shortages database. "Active Shortage" means at least one presentation has status "current."

No FDA shortage records

Chemical Identity

CAS547-32-0

PubChem CID15899898

DTXSIDDTXSID20203152

FormulaC10H9N4NaO2S

Mol. Weight272.26 g/mol

SMILESC1=CN=C(N=C1)[N-]S(=O)(=O)C2=CC=C(C=C2)N.[Na+]

Data Sources

PubChem · compound 15899898Retrieved 2026-04-07
FDA National Drug Code directoryRetrieved 2026-04-25
FDA National Drug Code directoryRetrieved 2026-04-07
US Census international tradeReporting year: 2024 · Retrieved 2026-10-04

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Brief citations

Sulfadiazine sodium (CAS 547-32-0) https://chemicalindependence.com/chemical/547-32-0/ PubChem: 15899898. Retrieved 2026-04-07. https://pubchem.ncbi.nlm.nih.gov/compound/15899898 FDA National Drug Code directory: CAS 547-32-0. Retrieved 2026-04-25. https://open.fda.gov/data/ndc/ FDA National Drug Code directory: bulk match. Retrieved 2026-04-07. https://open.fda.gov/data/ndc/ US Census international trade: HS 293590 for CAS 547-32-0. Reporting year: 2024. https://usatrade.census.gov/