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Pyridinium, 3-carboxy-1-(phenylmethyl)-, inner salt

CAS 15990-43-9

Molecular structure of 15990-43-9
US productionNot reported
Import value, 2024$1.3B
Top sourceChina 32%

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 293339 · basket

These shares come from HS customs code 293339, which covers 397 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries
CN 32%ChinaIN 15%IndiaDE 10%GermanyBE 9%BelgiumCH 8%Switzerland

Why It Matters

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

Vendor Pricing

$0.09/gAaron Chemicals LLC
CountryHong Kong
Pack$47.00 / 500 g
Purity48%
Vendors5 available

Prices reflect listed pack sizes. Small research packs run far above bulk rates.

4 more vendors
VendorCountry$/gPackPurity
AK Scientific, Inc.United States$1.87100 g48%
A2B Chem LLCUnited States$2.02100 g48%
AA BLOCKSUnited States$2.08100 g48%
Angene International LimitedUnited States$3.23100 g48%

Chemical Identity

CAS15990-43-9
PubChem CIDNot recorded
DTXSIDDTXSID0065989
FormulaC13H11NO2
Mol. Weight213.236 g/mol
SMILES[O-]C(=O)C1=C[N+](CC2=CC=CC=C2)=CC=C1

Data Sources

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Brief citations

Pyridinium, 3-carboxy-1-(phenylmethyl)-, inner salt (CAS 15990-43-9) https://chemicalindependence.com/chemical/15990-43-9/ EPA TSCA Inventory: CAS 15990-43-9. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory US Census international trade: HS 293339 for CAS 15990-43-9. Reporting year: 2024. https://usatrade.census.gov/