methylergonovine maleate

Drug ingredient

CAS 57432-61-8

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

US productionNot reported

Import value, 2024$6M

Top sourceCzech Republic 36%

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 293969 · basket

These shares come from HS customs code 293969, which covers 7 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).

CZ 36%Czech RepublicJP 30%JapanIT 17%ItalyCN 15%ChinaCA 1%Canada

Switzerland
United Kingdom
Germany
India

15 FDA-registered drug labelers

American Health Packaging

American Regent, Inc.

Amneal Pharmaceuticals NY LLC

Breckenridge Pharmaceutical, Inc.

Bryant Ranch Prepack

Granules Pharmaceuticals Inc.

HF Acquisition Co LLC, DBA HealthFirst

Lupin Pharmaceuticals,Inc.

Major Pharmaceuticals

Pharmacist Pharmaceutical, LLC

Rising Pharma Holdings, Inc.

TAPI Czech Industries s.r.o.

Teva Czech Industries s.r.o

Teva Pharmaceuticals USA, Inc.

Volley Pharmaceuticals, LLC

Why It Matters

Sectors

Health

Downstream Uses

Appears in 2 drug and cosmetic product listings (FDA).

•Methergine
•Methylergonovine Maleate

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

Chemical Identity

CAS57432-61-8

PubChem CID5281072

DTXSIDDTXSID1023283

FormulaC24H29N3O6

Mol. Weight455.5 g/mol

SMILESCCC(CO)NC(=O)C1CN(C2CC3=CNC4=CC=CC(=C34)C2=C1)C.C(=CC(=O)O)C(=O)O

Data Sources

PubChem · compound 5281072Retrieved 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

methylergonovine maleate (CAS 57432-61-8) https://chemicalindependence.com/chemical/57432-61-8/ PubChem: 5281072. Retrieved 2026-04-07. https://pubchem.ncbi.nlm.nih.gov/compound/5281072 FDA National Drug Code directory: CAS 57432-61-8. 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 293969 for CAS 57432-61-8. Reporting year: 2024. https://usatrade.census.gov/