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3-Hydroxy-4-(6-hydroxy-m-tolylazo)naphthalene-1-sulphonic acid

CAS 3147-14-6

1-Naphthalenesulfonic acid, 3-hydroxy-4-[2-(2-hydroxy-5-methylphenyl)diazenyl]-

Molecular structure of 3147-14-6
US productionNot reported
Import value, 2024$50M
Top sourceIndonesia 23%

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 292700 · basket

These shares come from HS customs code 292700, which covers 89 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries
ID 23%IndonesiaJP 18%JapanMX 16%MexicoCN 13%ChinaKR 8%South Korea

Why It Matters

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

Vendor Pricing

$8.26/gSigma-Aldrich (Rush Stock)
CountryGermany
Pack$206.38 / 25 g
PurityNot recorded
Vendors3 available

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

2 more vendors
VendorCountry$/gPackPurity
Sigma-AldrichGermany$8.2625 g—
MolnovaChina$9800.005 mg99%

Chemical Identity

CAS3147-14-6
PubChem CIDNot recorded
DTXSIDDTXSID8062866
FormulaC17H14N2O5S
Mol. Weight358.37 g/mol
SMILESCC1=CC(N=NC2=C3C=CC=CC3=C(C=C2O)S(O)(=O)=O)=C(O)C=C1

Data Sources

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Brief citations

3-Hydroxy-4-(6-hydroxy-m-tolylazo)naphthalene-1-sulphonic acid (CAS 3147-14-6) https://chemicalindependence.com/chemical/3147-14-6/ EPA TSCA Inventory: CAS 3147-14-6. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory US Census international trade: HS 292700 for CAS 3147-14-6. Reporting year: 2024. https://usatrade.census.gov/