Carteolol hydrochloride

Drug ingredient

CAS 51781-21-6

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

Molecular structure of 51781-21-6 — 1 HCl

US productionNot reported

Import value, 2024$907M

Top sourceIreland 47%

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 293379 · basket

These shares come from HS customs code 293379, which covers 105 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).

IE 47%IrelandBE 19%BelgiumSG 11%SingaporeIT 4%ItalyCH 4%Switzerland

Brazil
Canada
Taiwan
Ukraine
Portugal
Netherlands
South Korea
Israel
Czech Republic
Spain
Finland
Hungary
Malaysia
Australia
Austria
Slovenia

2 FDA-registered drug labelers

Lusochimica SPA

Sandoz Inc

Why It Matters

Sectors

Health

Downstream Uses

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

•Carteolol Hydrochloride

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

$436.00/gA2B Chem LLC

CountryUnited States

Pack$218.00 / 500 mg

Purity99.91%

Vendors12 available

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

11 more vendors

Vendor	Country	$/g	Pack	Purity
AA BLOCKS	United States	$492.00	500 mg	99.91%
Molnova	China	$508.00	500 mg	99%
TargetMol Chemicals	China → United States	$564.00	500 mg	99.97%
MedChemExpress MCE	Sweden	$912.34	500 mg	99.96%
Aaron Chemicals LLC	Hong Kong	$1062.00	500 mg	99%
Angene Chemical	China → Hong Kong	$1070.00	500 mg	99%
Angene International Limited	United States	$1290.00	500 mg	98%
Apexbio Technology LLC	United States	$1610.00	100 mg	99.92%
Combi-Blocks (back-ordered)	United States	$2100.00	100 mg	95%
Cayman Europe	Estonia	$3170.16	250 mg	98%
MedKoo Biosciences, Inc	United States	$3800.00	250 mg	98%

Chemical Identity

CAS51781-21-6

PubChem CID40127

DTXSIDDTXSID4045478

FormulaC16H25ClN2O3

Mol. Weight328.83 g/mol

SMILESCC(C)(C)NCC(COC1=CC=CC2=C1CCC(=O)N2)O.Cl

Data Sources

PubChem · compound 40127Retrieved 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

Carteolol hydrochloride (CAS 51781-21-6) https://chemicalindependence.com/chemical/51781-21-6/ PubChem: 40127. Retrieved 2026-04-07. https://pubchem.ncbi.nlm.nih.gov/compound/40127 FDA National Drug Code directory: CAS 51781-21-6. 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 293379 for CAS 51781-21-6. Reporting year: 2024. https://usatrade.census.gov/