Erythromycin ethylsuccinate

Drug ingredient

CAS 1264-62-6

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

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

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

CN 83%ChinaIN 13%IndiaES 3%SpainCH 1%Switzerland

Italy
Hong Kong
Canada
Belgium

14 FDA-registered drug labelers

Amneal Pharmaceuticals NY LLC

ANI Pharmaceuticals, Inc.

Anuh Pharma Ltd.

Azurity Pharmaceuticals, Inc. (formerly Arbor Pharmaceuticals)

Cadila Pharmaceuticals Limited

Calyx Chemicals & Pharmaceuticals Limited

Carnegie Pharmaceuticals LLC

Ercros SA

Nivagen Pharmaceuticals, Inc.

Professional Compounding Centers of America

Professional Compounding Centers of America dba PCCA

SM Biomed Sdn.Bhd.

Wilshire Pharmaceuticals

Wilshire Pharmaceuticals Inc.

Why It Matters

Sectors

Health

Downstream Uses

Appears in 4 drug and cosmetic product listings (FDA).

•Erythromycin Ethylsuccinate
•E.E.S 400
•Ery-Ped
•E.E.S

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

$5.36/gAstaTech, Inc

CountryUnited States

Pack$536.00 / 100 g

Purity95%

Vendors19 available

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

18 more vendors

Vendor	Country	$/g	Pack	Purity
Angene Chemical	China → Hong Kong	$6.32	25 g	—
A2B Chem LLC	United States	$8.40	25 g	—
AA BLOCKS	United States	$9.24	25 g	—
Angene International Limited	United States	$14.20	25 g	98%
AK Scientific, Inc.	United States	$15.68	25 g	98%
TargetMol Chemicals	China → United States	$200.00	200 mg	98%
Molnova	China	$215.00	200 mg	99%
MedChemExpress MCE	Sweden	$225.06	500 mg	98%
TargetMol Chemicals EU	Austria	$300.00	100 mg	98%
Fulfilled by Molport	Latvia	$330.00	100 mg	—
Ambeed, Inc.	United States	$350.00	100 mg	—
Sigma-Aldrich (Rush Stock)	Germany	$633.32	250 mg	—
Sigma-Aldrich	Germany	$633.32	250 mg	—
Apexbio Technology LLC	United States	$1000.00	50 mg	98%
Princeton BioMolecular Research (SC)	United States	$2900.00	100 mg	90%
Vitas M Chemical Limited	Hong Kong	$3170.00	100 mg	90%
Angene	China → Hong Kong	$4266.67	30 mg	—
Interbioscreen	Hong Kong	$6187.00	100 mg	95%

Chemical Identity

CAS1264-62-6

PubChem CID443953

DTXSIDDTXSID4022993

FormulaC43H75NO16

Mol. Weight862.1 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)OC(=O)CCC(=O)OCC)(C)O)C)C)O)(C)O

Data Sources

PubChem · compound 443953Retrieved 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

Erythromycin ethylsuccinate (CAS 1264-62-6) https://chemicalindependence.com/chemical/1264-62-6/ PubChem: 443953. Retrieved 2026-04-07. https://pubchem.ncbi.nlm.nih.gov/compound/443953 FDA National Drug Code directory: CAS 1264-62-6. 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 1264-62-6. Reporting year: 2024. https://usatrade.census.gov/