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Cefaclor

Drug ingredient

CAS 53994-73-3

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

Molecular structure of 53994-73-3
US productionNot reported
Import value, 2024$546M
Top sourceItaly 41%

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 294190 · basket

These shares come from HS customs code 294190, which covers 90 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries
IT 41%ItalyCN 24%ChinaDK 9%DenmarkHR 6%CroatiaIN 6%India
5 FDA-registered drug labelers
A-S Medication Solutions
ACS Dobfar S.p.A
Azorian Pharma, LLC
Carlsbad Technology, Inc.
Teva Pharmaceuticals USA, Inc.

Why It Matters

Sectors
Health
Downstream Uses

Appears in 1 drug and cosmetic product listings (FDA).

  • •Cefaclor
FDA Shortage Status
No FDA shortage records

Chemical Identity

CAS53994-73-3
PubChem CID51039
DTXSIDDTXSID3022748
FormulaC15H14ClN3O4S
Mol. Weight367.8 g/mol
SMILESC1C(=C(N2C(S1)C(C2=O)NC(=O)C(C3=CC=CC=C3)N)C(=O)O)Cl

Data Sources

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Brief citations

Cefaclor (CAS 53994-73-3) https://chemicalindependence.com/chemical/53994-73-3/ PubChem: 51039. Retrieved 2026-04-07. https://pubchem.ncbi.nlm.nih.gov/compound/51039 FDA National Drug Code directory: CAS 53994-73-3. 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 294190 for CAS 53994-73-3. Reporting year: 2024. https://usatrade.census.gov/