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Oxytetracycline

CAS 79-57-2

2-Naphthacenecarboxamide, 4-(dimethylamino)-1,4,4a,5,5a,6,11,12a-octahydro-3,5,6,10,12,12a-hexahydroxy-6-methyl-1,11-dioxo-, (4S,4aR,5S,5aR,6S,12aS)-

Molecular structure of 79-57-2
US productionNot reported
Import value, 2024$62M
Top sourceChina 82%

This chemical is listed as active in US commerce, but no company reported it to EPA’s survey for 2019 or 2023. Sites may have made or imported less than the threshold amount, or none.

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 294130 · basket

These shares come from HS customs code 294130, which covers 10 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries
CN 82%ChinaCH 5%SwitzerlandBG 4%BulgariaTH 4%ThailandIT 2%Italy

Why It Matters

No EPA sector or FDA product records name a use for this chemical.

Chemical Identity

CAS79-57-2
PubChem CIDNot recorded
DTXSIDDTXSID1034260
FormulaC22H24N2O9
Mol. Weight460.439 g/mol
SMILES[H][C@@]12[C@@H](O)[C@@]3([H])C(C(=O)C4=C(C=CC=C4O)[C@@]3(C)O)=C(O)[C@]1(O)C(=O)C(C(N)=O)=C(O)[C@H]2N(C)C

Data Sources

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Brief citations

Oxytetracycline (CAS 79-57-2) https://chemicalindependence.com/chemical/79-57-2/ EPA TSCA Inventory: CAS 79-57-2. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory US Census international trade: HS 294130 for CAS 79-57-2. Reporting year: 2024. https://usatrade.census.gov/