C.I. Pigment Red 5

CAS 6410-41-9

2-Naphthalenecarboxamide, N-(5-chloro-2,4-dimethoxyphenyl)-4-[2-[5-[(diethylamino)sulfonyl]-2-methoxyphenyl]diazenyl]-3-hydroxy-

Molecular structure of 6410-41-9
US productionNot reported
Import value, 2024$419M
Top sourceIndia 31%

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 320417 · basket

These shares come from HS customs code 320417, which covers 80 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries
IN 31%IndiaCN 21%ChinaDE 17%GermanyKR 6%South KoreaCA 5%Canada

Why It Matters

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

Vendor Pricing

$1215.00/gA2B Chem LLC (1 week)
CountryUnited States
Pack$1215.00 / 1 g
Purity95%
Vendors3 available

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

Chemical Identity

CAS6410-41-9
PubChem CIDNot recorded
DTXSIDDTXSID0050394
FormulaC30H31ClN4O7S
Mol. Weight627.11 g/mol
SMILESCCN(CC)S(=O)(=O)C1=CC=C(OC)C(=C1)N=NC1=C(O)C(=CC2=CC=CC=C12)C(=O)NC1=C(OC)C=C(OC)C(Cl)=C1

Data Sources

Brief citations

C.I. Pigment Red 5 (CAS 6410-41-9) https://chemicalindependence.com/chemical/6410-41-9/ EPA TSCA Inventory: CAS 6410-41-9. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory US Census international trade: HS 320417 for CAS 6410-41-9. Reporting year: 2024. https://usatrade.census.gov/