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Clarithromycin

Drug ingredient

CAS 81103-11-9

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

Molecular structure of 81103-11-9
US productionNot reported
Import value, 2024$16M
Top sourceChina 83%

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 294150 · basket

These shares come from HS customs code 294150, which covers 8 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries
CN 83%ChinaIN 13%IndiaES 3%SpainCH 1%Switzerland
33 FDA-registered drug labelers
A-S Medication Solutions
Actavis Pharma, Inc.
Alembic Pharmaceuticals Inc.
Alembic Pharmaceuticals Limited
American Health Packaging
Asclemed USA, Inc.
Assia Chemical Industries Ltd - Teva Tech Site
Aurobindo Pharma Limited
AvPAK
Bryant Ranch Prepack
Chartwell RX, LLC
Coupler LLC
DirectRx
HEC PHARM CO., LTD
Kalchem International inc
Lannett Company, Inc.
LETCO MEDICAL, LLC
Major Pharmaceuticals
Northwind Health Company, LLC
Novartis Pharmaceuticals Corporation
NuCare Pharmaceuticals, Inc.
PD-Rx Pharmaceuticals, Inc.
Preferred Pharmaceuticals Inc.
Proficient Rx LP
REMEDYREPACK INC.
Rising Pharma Holdings, Inc.
Sandoz Inc
Solaris Pharma Corporation
Spectrum Laboratory Products, Inc.
Synthimed Labs Private Limited
Teva API India Ltd
Zhejiang Better Pharmaceuticals Co., Ltd.
ZHEJIANG GUOBANG PHARMACEUTICAL CO., LTD.

Why It Matters

Sectors
Health
Downstream Uses

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

  • •Clarithromycin
FDA Shortage Status
No FDA shortage records

Chemical Identity

CAS81103-11-9
PubChem CID84029
DTXSIDDTXSID3022829
FormulaC38H69NO13
Mol. Weight748 g/mol
SMILESCCC1C(C(C(C(=O)C(CC(C(C(C(C(C(=O)O1)C)OC2CC(C(C(O2)C)O)(C)OC)C)OC3C(C(CC(O3)C)N(C)C)O)(C)OC)C)C)O)(C)O

Data Sources

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Brief citations

Clarithromycin (CAS 81103-11-9) https://chemicalindependence.com/chemical/81103-11-9/ PubChem: 84029. Retrieved 2026-04-07. https://pubchem.ncbi.nlm.nih.gov/compound/84029 FDA National Drug Code directory: CAS 81103-11-9. 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 294150 for CAS 81103-11-9. Reporting year: 2024. https://usatrade.census.gov/