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5-Butyl barbituric acid

CAS 1953-33-9

2,4,6(1H,3H,5H)-Pyrimidinetrione, 5-butyl-

Molecular structure of 1953-33-9
US productionNot reported
Import value, 2024$2M
Top sourceSingapore 66%

This chemical is listed as active in US commerce, but no company reported it to EPA’s survey for 2019 or 2023. Sites may have made or imported less than the threshold amount, or none.

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 293354 · basket

These shares come from HS customs code 293354, which covers 13 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries
SG 66%SingaporeHU 25%HungaryDE 6%GermanyCN 2%China

Why It Matters

No EPA sector or FDA product records name a use for this chemical.

Chemical Identity

CAS1953-33-9
PubChem CIDNot recorded
DTXSIDDTXSID7062085
FormulaC8H12N2O3
Mol. Weight184.195 g/mol
SMILESCCCCC1C(=O)NC(=O)NC1=O

Data Sources

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Brief citations

5-Butyl barbituric acid (CAS 1953-33-9) https://chemicalindependence.com/chemical/1953-33-9/ EPA TSCA Inventory: CAS 1953-33-9. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory US Census international trade: HS 293354 for CAS 1953-33-9. Reporting year: 2024. https://usatrade.census.gov/