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Methanaminium, N,N,N-trimethyl-, 4,5-dihydro-5-oxo-1-(4-sulfophenyl)-4-[2-(4-sulfophenyl)diazenyl]-1H-pyrazole-3-carboxylate (3:1)

CAS 131013-81-5

Molecular structure of 131013-81-5
US productionNot reported
Import value, 2024$597M
Top sourceSwitzerland 53%

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 293319 · basket

These shares come from HS customs code 293319, which covers 133 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries
CH 53%SwitzerlandDE 22%GermanyIN 14%IndiaCN 4%ChinaIT 3%Italy

Why It Matters

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

Chemical Identity

CAS131013-81-5
PubChem CIDNot recorded
DTXSIDDTXSID20891114
FormulaC28H45N7O9S2
Mol. Weight687.83 g/mol
SMILESC[N+](C)(C)C.C[N+](C)(C)C.C[N+](C)(C)C.[O-]C(=O)C1=NN(C(=O)C1N=NC1=CC=C(C=C1)S([O-])(=O)=O)C1=CC=C(C=C1)S([O-])(=O)=O

Data Sources

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Brief citations

Methanaminium, N,N,N-trimethyl-, 4,5-dihydro-5-oxo-1-(4-sulfophenyl)-4-[2-(4-sulfophenyl)diazenyl]-1H-pyrazole-3-carboxylate (3:1) (CAS 131013-81-5) https://chemicalindependence.com/chemical/131013-81-5/ EPA TSCA Inventory: CAS 131013-81-5. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory US Census international trade: HS 293319 for CAS 131013-81-5. Reporting year: 2024. https://usatrade.census.gov/