diltiazem hcl

Drug ingredient

CAS 33286-22-5

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

Molecular structure of 33286-22-5
1 HCl
US productionNot reported
Import value, 2024$6.4B
Top sourceSingapore 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 293499 · basket

These shares come from HS customs code 293499, which covers 575 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries
SG 36%SingaporeIE 23%IrelandCN 11%ChinaCH 6%SwitzerlandIN 5%India
1 FDA-registered drug labeler
A-S Medication Solutions

Why It Matters

Sectors
Health
Downstream Uses

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

  • •Diltiazem Hydrochloride
FDA Shortage Status
No FDA shortage records

Vendor Pricing

$4.43/gAaron Chemicals LLC
CountryHong Kong
Pack$443.00 / 100 g
Purity99%
Vendors28 available

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

Chemical Identity

CAS33286-22-5
PubChem CID62920
DTXSIDDTXSID8040147
FormulaC22H27ClN2O4S
Mol. Weight451 g/mol
SMILESCC(=O)OC1C(SC2=CC=CC=C2N(C1=O)CCN(C)C)C3=CC=C(C=C3)OC.Cl

Data Sources

Brief citations

diltiazem hcl (CAS 33286-22-5) https://chemicalindependence.com/chemical/33286-22-5/ PubChem: 62920. Retrieved 2026-04-07. https://pubchem.ncbi.nlm.nih.gov/compound/62920 FDA National Drug Code directory: CAS 33286-22-5. 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 293499 for CAS 33286-22-5. Reporting year: 2024. https://usatrade.census.gov/