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Methimazole

Drug ingredient

CAS 60-56-0

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

Molecular structure of 60-56-0
US productionNot reported
Import value, 2024$114M
Top sourceChina 26%

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 293329 · basket

These shares come from HS customs code 293329, which covers 173 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries
CN 26%ChinaIN 17%IndiaKR 16%South KoreaDE 9%GermanyIT 9%Italy
28 FDA-registered drug labelers
A-S Medication Solutions
AiPing Pharmaceutical, Inc.
American Health Packaging
AvPAK
Bionpharma Inc.
Bryant Ranch Prepack
Chartwell RX, LLC
Coupler LLC
CU Chemie Uetikon GmbH
Golden State Medical Supply, Inc.
Heritage Pharmaceuticals Inc. d/b/a Avet Pharmaceuticals Inc.
INNOVA PHARMACTIVE PRIVATE LIMITED
KALINTIS HEALTHCARE PRIVATE LIMITED
LETCO MEDICAL, LLC
Macleods Pharmaceuticals Limited
Maithri Drugs Private Limited
Medisca Inc.
NORTHSTAR RX LLC
Preferred Pharmaceuticals Inc.
Professional Compounding Centers of America dba PCCA
Proficient Rx LP
REMEDYREPACK INC.
Rising Pharma Holdings, Inc.
SQUARE PHARMACEUTICALS PLC.
Strides Pharma Science Limited
Upsher-Smith Laboratories, LLC
Viona Pharmaceuticals Inc.
Yumen Qianhua Pharmaceutical Co., Ltd.

Why It Matters

Sectors
Health
Downstream Uses

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

  • •Methimazole
FDA Shortage Status
No FDA shortage records

Vendor Pricing

$0.28/gAaron Chemicals LLC
CountryHong Kong
Pack$28.00 / 100 g
Purity99%
Vendors24 available

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

23 more vendors
VendorCountry$/gPackPurity
Angene ChemicalChina → Hong Kong$0.30500 g98%
A2B Chem LLCUnited States$0.50100 g99%
Fluorochem EUGermany$0.52100 g97%
AA BLOCKSUnited States$0.56100 g99%
Combi-Blocks, Inc.United States$0.59500 g97%
AK Scientific SpecializedUnited States$0.66100 g95%
BLD Pharmatech GmbHGermany$0.68500 g99%
BLD Pharmatech Ltd.China$0.68500 g99%
BLD Pharmatech Co., LimitedUnited States$0.70500 g99%
Ambeed, Inc.United States$0.70500 g99%
Apollo Scientific USUnited Kingdom$0.84500 g99%
AK Scientific, Inc.United States$0.88100 g98%
Fulfilled by MolportLatvia$1.005 g99%
Sigma-Aldrich (Rush Stock)Germany$2.07100 g—
Sigma-AldrichGermany$2.07100 g—
MedKoo Biosciences, IncUnited States$18.0025 g98%
MedChemExpress MCESweden$24.935 g99.97%
MolnovaChina$82.00500 mg99%
Angene International LimitedUnited States$140.001 g99%
Cayman EuropeEstonia$1689.80100 mg98%
Life Chemicals Inc.Ukraine → Canada$3100.00100 mg90%
Vitas M Chemical LimitedHong Kong$3170.00100 mg90%
AngeneChina → Hong Kong$4266.6730 mg98%

Chemical Identity

CAS60-56-0
PubChem CID1349907
DTXSIDDTXSID4020820
FormulaC4H6N2S
Mol. Weight114.17 g/mol
SMILESCN1C=CNC1=S

Data Sources

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Brief citations

Methimazole (CAS 60-56-0) https://chemicalindependence.com/chemical/60-56-0/ PubChem: 1349907. Retrieved 2026-04-07. https://pubchem.ncbi.nlm.nih.gov/compound/1349907 EPA TSCA Inventory: CAS 60-56-0. 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 293329 for CAS 60-56-0. Reporting year: 2024. https://usatrade.census.gov/