Muscimol

CAS 2763-96-4

3(2H)-Isoxazolone, 5-(aminomethyl)-

Molecular structure of 2763-96-4
US productionNot reported
Import value, 2024$6.4B
Top sourceSingapore 36%

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 293499 · basket

These shares come from HS customs code 293499, which covers 575 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries
SG 36%SingaporeIE 23%IrelandCN 11%ChinaCH 6%SwitzerlandIN 5%India

Why It Matters

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

Chemical Identity

CAS2763-96-4
PubChem CIDNot recorded
DTXSIDDTXSID5041069
FormulaC4H6N2O2
Mol. Weight114.104 g/mol
SMILESNCC1=CC(O)=NO1

Data Sources

Brief citations

Muscimol (CAS 2763-96-4) https://chemicalindependence.com/chemical/2763-96-4/ EPA TSCA Inventory: CAS 2763-96-4. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory US Census international trade: HS 293499 for CAS 2763-96-4. Reporting year: 2024. https://usatrade.census.gov/