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Isocyanic acid, polymethylenepolyphenylene ester, Me Et ketone oxime-blocked

CAS 90438-80-5

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

Molecular structure of 90438-80-5
US productionNot reported
Top sourceNo public record

EPA exempts this chemical from its production survey.

Why supply is unknown

Where It Comes From

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

Why It Matters

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

Chemical Identity

CAS90438-80-5
PubChem CIDNot recorded
DTXSIDDTXSID40105361
FormulaNot recorded
Mol. WeightNot recorded
SMILESNot recorded

Data Sources

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Brief citations

Isocyanic acid, polymethylenepolyphenylene ester, Me Et ketone oxime-blocked (CAS 90438-80-5) https://chemicalindependence.com/chemical/90438-80-5/ EPA TSCA Inventory: CAS 90438-80-5. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory