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4-Amino-5,6-dimethylthieno(2,3-d)pyrimidin-2(1H)-one hydrochloride

CAS 1033366-59-4

EPA and Census publish no US supply data for this chemical.

Molecular structure of 1033366-59-4
1 HCl
US productionNot reported
Top sourceNo public record

This chemical is not on EPA’s Toxic Substances Control Act inventory, the list behind EPA’s production survey.

Why supply is unknown

No public supply or use records

Neither EPA production reports, Census trade data nor FDA listings cover this chemical, so no one publishes where the US gets it or what it goes into. Why supply is unknown

Chemical Identity

CAS1033366-59-4
PubChem CIDNot recorded
DTXSIDDTXSID30893629
FormulaC8H10ClN3OS
Mol. Weight231.7 g/mol
SMILESCl.CC1=C(C)C2=C(NC(=O)N=C2N)S1

Data Sources

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Brief citations

4-Amino-5,6-dimethylthieno(2,3-d)pyrimidin-2(1H)-one hydrochloride (CAS 1033366-59-4) https://chemicalindependence.com/chemical/1033366-59-4/ EPA CompTox (DSSTox): 1033366-59-4. Retrieved 2026-04-29. https://comptox.epa.gov/dashboard/chemical/details/DTXSID30893629