grapiprant

Drug ingredient

CAS 415903-37-6

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

US productionNot reported

Import value, 2024$2.0B

Top sourceIreland 63%

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 293590 · basket

These shares come from HS customs code 293590, which covers 182 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 63%IrelandSG 14%SingaporeIN 7%IndiaCN 7%ChinaCH 2%Switzerland

Portugal
Spain
Italy
Austria
Israel
Hungary
Canada
South Korea
Netherlands
Finland
Poland
Indonesia
Ukraine
Mexico
South Africa
Croatia
Greece
Taiwan
Hong Kong

4 FDA-registered drug labelers

Jiangsu Tianhe Pharmaceutical Co., Ltd.

Sterling Pharma Solutions Limited

Zenfold Sustainable Technologies Private Limited

Zhejiang Apeloa Jiayuan Pharmaceutical Co., Ltd.

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

$180.00/gCombi-Blocks, Inc.

CountryUnited States

Pack$1800.00 / 10 g

Purity98%

Vendors17 available

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

16 more vendors

Vendor	Country	$/g	Pack	Purity
A2B Chem LLC	United States	$254.20	5 g	98%
AA BLOCKS	United States	$268.40	5 g	98%
Aaron Chemicals LLC	Hong Kong	$726.00	1 g	98%
Angene Chemical	China → Hong Kong	$831.00	1 g	98%
BLD Pharmatech Ltd.	China	$917.00	1 g	98%
Ambeed, Inc.	United States	$1250.00	100 mg	98%
BLD Pharmatech Co., Limited	United States	$2080.00	50 mg	98%
BLD Pharmatech GmbH	Germany	$2640.00	50 mg	98%
MedKoo Biosciences, Inc	United States	$3850.00	1 g	98%
AstaTech (2 weeks)	United States	$4024.00	250 mg	95%
TargetMol Chemicals	China → United States	$5620.00	100 mg	99.843%
TargetMol Chemicals EU	Austria	$7440.00	50 mg	99.843%
Axon Medchem	Netherlands	$8640.00	50 mg	98%
MedChemExpress MCE	Sweden	$9002.40	100 mg	99.57%
Angene International Limited	United States	$11890.00	100 mg	98%
Cayman Europe	Estonia	$16850.40	25 mg	98%

Chemical Identity

CAS415903-37-6

PubChem CID11677589

DTXSIDDTXSID60194419

FormulaC26H29N5O3S

Mol. Weight491.6 g/mol

SMILESCCC1=NC2=C(N1C3=CC=C(C=C3)CCNC(=O)NS(=O)(=O)C4=CC=C(C=C4)C)C=C(N=C2C)C

Data Sources

PubChem · compound 11677589Retrieved 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

grapiprant (CAS 415903-37-6) https://chemicalindependence.com/chemical/415903-37-6/ PubChem: 11677589. Retrieved 2026-04-07. https://pubchem.ncbi.nlm.nih.gov/compound/11677589 FDA National Drug Code directory: CAS 415903-37-6. 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 293590 for CAS 415903-37-6. Reporting year: 2024. https://usatrade.census.gov/