Protirelin

Drug ingredient

CAS 24305-27-9

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

US productionNot reported

Import value, 2024$16.4B

Top sourceIreland 94%

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 293719 · basket

These shares come from HS customs code 293719, which covers 53 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 94%IrelandAR 4%ArgentinaCN 1%ChinaDK 1%Denmark

Switzerland
Sweden
India
Spain
Israel
Austria
Belgium
Netherlands
Italy
Hong Kong
Brazil
United Kingdom
Germany
Canada
Australia
Japan
New Zealand
Latvia
South Korea
Taiwan
Estonia
Uruguay

2 FDA-registered drug labelers

BCN PEPTIDES SA

DARMERICA, LLC

Why It Matters

Sectors

Health

Downstream UsesNot recorded

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

$786.00/gAaron Chemicals LLC

CountryHong Kong

Pack$393.00 / 500 mg

Purity95%

Vendors15 available

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

14 more vendors

Vendor	Country	$/g	Pack	Purity
Angene Chemical	China → Hong Kong	$792.00	500 mg	95%
A2B Chem LLC	United States	$1450.00	100 mg	99.76%
AA BLOCKS	United States	$1710.00	100 mg	98%
TargetMol Chemicals	China → United States	$1880.00	100 mg	99.76%
MedKoo Biosciences, Inc	United States	$1950.00	1 g	98%
Sigma-Aldrich (Rush Stock)	Germany	$2302.87	1 g	98%
Sigma-Aldrich	Germany	$2302.87	1 g	98%
AstaTech (2 weeks)	United States	$2507.00	1 g	98%
Angene International Limited	United States	$3000.00	100 mg	98%
Cayman Europe	Estonia	$3251.08	250 mg	98%
AK Scientific, Inc.	United States	$3410.00	100 mg	97%
Molnova	China	$3900.00	50 mg	99%
MedChemExpress MCE	Sweden	$3993.00	50 mg	99.98%
Key Organics Ltd.	United Kingdom	$6900.00	10 mg	97%

Chemical Identity

CAS24305-27-9

PubChem CID638678

DTXSIDDTXSID0023533

FormulaC16H22N6O4

Mol. Weight362.38 g/mol

SMILESC1CC(N(C1)C(=O)C(CC2=CN=CN2)NC(=O)C3CCC(=O)N3)C(=O)N

Data Sources

PubChem · compound 638678Retrieved 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

Protirelin (CAS 24305-27-9) https://chemicalindependence.com/chemical/24305-27-9/ PubChem: 638678. Retrieved 2026-04-07. https://pubchem.ncbi.nlm.nih.gov/compound/638678 FDA National Drug Code directory: CAS 24305-27-9. 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 293719 for CAS 24305-27-9. Reporting year: 2024. https://usatrade.census.gov/