Chloramphenicol

Drug ingredient

CAS 56-75-7

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

US productionNot reported

Import value, 2024$4M

Top sourceChina 50%

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 294140 · basket

These shares come from HS customs code 294140, which covers 4 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).

CN 50%ChinaES 29%SpainIN 21%India

Israel
United Kingdom

11 FDA-registered drug labelers

ANUH PHARMA LIMITED

Bestmade Natural Products

DARMERICA, LLC

Fagron Inc

Galenova Inc

Jiangsu Lianhuan Pharmaceutical Co.,Ltd.

LETCO MEDICAL, LLC

Medisca Inc.

Nanjing White Whale Pharmaceutical Co., Ltd

Professional Compounding Centers of America

Quimica Sintetica S.A.

Why It Matters

Sectors

Health

Downstream Uses

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

•Bestmade Natural Products BM64

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

Vendor Pricing

$4.49/gA2B Chem LLC

CountryUnited States

Pack$449.00 / 100 g

Purity95%

Vendors14 available

Prices reflect listed pack sizes. Small research packs run far above bulk rates.

13 more vendors

Vendor	Country	$/g	Pack	Purity
AA BLOCKS	United States	$4.74	100 g	95%
AstaTech, Inc	United States	$7.20	25 g	95%
MedKoo Biosciences, Inc	United States	$26.00	25 g	98%
Combi-Blocks, Inc.	United States	$30.00	5 g	95%
Angene Chemical	China → Hong Kong	$37.97	100 g	98%
Angene International Limited	United States	$114.00	1 g	95%
Vitas M Chemical Limited	Hong Kong	$360.00	500 mg	90%
Labotest KG	Germany	$453.00	1000 mg	90%
ChemFaces	China	$1500.00	20 mg	98%
ChemBridge Corporation	Kazakhstan	$1860.00	100 mg	90%
Maybridge, Ltd.	United Kingdom	$2414.30	100 mg	90%
Princeton BioMolecular Research (SC)	United States	$2900.00	100 mg	90%
Asinex	Netherlands	$6461.40	100 mg	90%

Chemical Identity

CAS56-75-7

PubChem CID5959

DTXSIDDTXSID7020265

FormulaC11H12Cl2N2O5

Mol. Weight323.13 g/mol

SMILESC1=CC(=CC=C1C(C(CO)NC(=O)C(Cl)Cl)O)[N+](=O)[O-]

Data Sources

PubChem · compound 5959Retrieved 2026-04-07
EPA TSCA InventoryRetrieved 2026-04-24
FDA National Drug Code directoryRetrieved 2026-04-07
US Census international tradeReporting year: 2024 · Retrieved 2026-10-04

← Back to Dashboard ← Back to Health

Brief citations

Chloramphenicol (CAS 56-75-7) https://chemicalindependence.com/chemical/56-75-7/ PubChem: 5959. Retrieved 2026-04-07. https://pubchem.ncbi.nlm.nih.gov/compound/5959 EPA TSCA Inventory: CAS 56-75-7. Retrieved 2026-04-24. https://www.epa.gov/tsca-inventory FDA National Drug Code directory: bulk match. Retrieved 2026-04-07. https://open.fda.gov/data/ndc/ US Census international trade: HS 294140 for CAS 56-75-7. Reporting year: 2024. https://usatrade.census.gov/