5-Ethyl-5-methylhydantoin

CAS 5394-36-5

U.S. production volumes are classified as confidential business information.

US productionCBI

Confidential Business Information. The EPA withholds this volume because publishing it could reveal the reporting company's trade secrets.

Top sourceNo public record

At least one company claimed its 2023 production or import volume for this chemical as confidential, so EPA withholds it.

Why supply is unknown

Production is reported production, not a complete census of factories. US production volume is confidential. Production reporting year: 2023.

Where It Comes From

EPA reports by year

2023: US production Confidential · Imports Confidential
2019: US production Confidential · Imports Confidential

EPA-registered manufacturers (1)

Companies that report making or importing this chemical to the EPA. Registration is US-centric and does not indicate import origin.

Arxada

Why It Matters

Sectors

Core Chemicals

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

Industrial Uses

Used in 2 sectors as 2 functional roles.

•Laboratory chemicals in All Other Chemical Product and Preparation Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product
•Ion exchange agent in All Other Basic Organic Chemical Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product

Vendor Pricing

$6.20/gA2B Chem LLC

CountryUnited States

Pack$31.00 / 5 g

Purity97%

Vendors19 available

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

18 more vendors

Vendor	Country	$/g	Pack	Purity
Combi-Blocks, Inc.	United States	$6.80	25 g	98%
AA BLOCKS	United States	$7.40	5 g	97%
WuXi AppTec (Hong Kong) Limited	China → Hong Kong	$8.37	25 g	—
BLD Pharmatech Co., Limited	United States	$8.60	5 g	95%
BLD Pharmatech Ltd.	China	$8.60	5 g	95%
Ambeed, Inc.	United States	$8.60	5 g	95%
Fluorochem EU	Germany	$10.65	5 g	98%
Aaron Chemicals LLC	Hong Kong	$12.04	25 g	97%
AstaTech, Inc	United States	$12.28	25 g	95%
Angene Chemical	China → Hong Kong	$12.92	25 g	97%
A2B Chem LLC (2 weeks)	United States	$34.00	5 g	—
Angene International Limited	United States	$34.80	5 g	95%
AA BLOCKS (2 weeks)	United States	$35.60	5 g	—
Sigma-Aldrich (Rush Stock)	Germany	$54.22	1 g	97%
Sigma-Aldrich	Germany	$54.22	1 g	97%
Labotest KG	Germany	$453.00	1000 mg	90%
ChemBridge Corporation	Kazakhstan	$3500.00	50 mg	90%
Angene	China → Hong Kong	$4266.67	30 mg	97%

Chemical Identity

CAS5394-36-5

PubChem CID82162

DTXSIDDTXSID9041368

FormulaC6H10N2O2

Mol. Weight142.16 g/mol

SMILESCCC1(C(=O)NC(=O)N1)C

Data Sources

EPA CompTox (DSSTox) · DTXSID9041368Retrieved 2026-04-06
PubChem · compound 82162Retrieved 2026-04-06
EPA Chemical Data ReportingReporting year: 2023 · Retrieved 2026-10-04
EPA Chemical Data ReportingReporting year: 2023 · Retrieved 2026-10-04

← Back to Dashboard ← Back to Core Chemicals

Brief citations

5-Ethyl-5-methylhydantoin (CAS 5394-36-5) https://chemicalindependence.com/chemical/5394-36-5/ EPA CompTox (DSSTox): DTXSID9041368. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID9041368 PubChem: 82162. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/82162 EPA Chemical Data Reporting: 5394-36-5. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 5394-36-5. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting