thiamine mononitrate

Drug ingredient

CAS 532-43-4

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

Molecular structure of 532-43-4
US productionNot reported
Import value, 2024$49M
Top sourceChina 88%

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 293622 · basket

These shares come from HS customs code 293622, which covers 5 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries
CN 88%ChinaDE 10%GermanyJP 2%JapanIN 1%India
18 FDA-registered drug labelers
A-S Medication Solutions
Acella Pharmaceuticals, LLC
Avion Pharmaceuticals, LLC
Blue Heron Pharmaceuticals, LLC
Bryant Ranch Prepack
Exeltis USA, Inc.
Hillestad Pharmaceuticals USA
Method Pharmaceuticals, LLC
Mission Pharmacal Company
Patrin Pharma, Inc.
Pure Source, LLC
PureTek Corporation
REMEDYREPACK INC.
Seton Pharmaceuticals
U.S. Pharmaceutical Corporation
V2 Pharma LLC
WINDER LABORATORIES, LLC
WOMENS CHOICE PHARMACEUTICALS LLC

Why It Matters

Sectors
Health
Downstream Uses

Appears in 58 drug and cosmetic product listings (FDA).

  • •Dialyvite
  • •Nestabs Prenatal Multi-vitamin/Mineral Supplement
  • •Integra Plus
  • •Multivitamin with Fluoride
  • •Flotrex
  • •Davimet-M
  • •Prenatryl
  • •Ventrixyl Fe
FDA Shortage Status
No FDA shortage records

Chemical Identity

CAS532-43-4
PubChem CID10762
DTXSIDDTXSID4038762
FormulaC12H17N5O4S
Mol. Weight327.36 g/mol
SMILESCC1=C(SC=[N+]1CC2=CN=C(N=C2N)C)CCO.[N+](=O)([O-])[O-]

Data Sources

Brief citations

thiamine mononitrate (CAS 532-43-4) https://chemicalindependence.com/chemical/532-43-4/ PubChem: 10762. Retrieved 2026-04-07. https://pubchem.ncbi.nlm.nih.gov/compound/10762 EPA TSCA Inventory: CAS 532-43-4. 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 293622 for CAS 532-43-4. Reporting year: 2024. https://usatrade.census.gov/