Spiro[isobenzofuran-1(3H),9'-[9H]xanthen]-3-one, 6'-[ethyl(4-methylphenyl)amino]-3'-methyl-2'-(phenylamino)-

CAS 59129-79-2

Used in 1 industrial sector tracked by the EPA.

US production70.9K lb

Import volumeZero

Import dependency0%

Top sourceNo public record

Production is reported production, not a complete census of factories. Production reporting year: 2019. Import value and source-country shares describe a shared customs category, not a separate chemical measurement.

Where It Comes From

Customs basis: HS 293220 · basket

EPA reports by year

2023: US production Not published · Imports Not published
2019: US production 70.9K lb · Imports Zero

HS customs code 293220 covers 151 tracked chemicals in total. US Census does not break out this chemical's share, so the country-of-origin mix is not available. EPA CDR reports import dependency at the chemical level separately, shown above.

EPA-registered manufacturers (1)

Companies that report making or importing this chemical to the EPA. Registration is US-centric and does not indicate import origin.

Sofix

Why It Matters

Sectors

Textiles

Downstream UsesNot recorded

FDA Shortage Status

Whether any manufacturer currently reports this drug as in shortage on the FDA Drug Shortages database. "Active Shortage" means at least one presentation has status "current."

No FDA shortage records

Industrial Uses

•Intermediate in Synthetic Dye and Pigment Manufacturing (100%)Processing as a reactant

Vendor Pricing

$2.40/gCombi-Blocks, Inc.

CountryUnited States

Pack$240.00 / 100 g

Purity95%

Vendors7 available

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

6 more vendors

Vendor	Country	$/g	Pack	Purity
Aaron Chemicals LLC	Hong Kong	$2.92	100 g	98%
Angene Chemical	China → Hong Kong	$3.13	100 g	95%
A2B Chem LLC	United States	$5.50	10 g	95%
AA BLOCKS	United States	$6.80	10 g	95%
AstaTech (2 weeks)	United States	$432.00	1 g	95%
Angene	China → Hong Kong	$4266.67	30 mg	95%

Chemical Identity

CAS59129-79-2

PubChem CID100964

DTXSIDDTXSID50886351

FormulaC36H30N2O3

Mol. Weight538.6 g/mol

SMILESCCN(C1=CC=C(C=C1)C)C2=CC3=C(C=C2)C4(C5=CC=CC=C5C(=O)O4)C6=C(O3)C=C(C(=C6)NC7=CC=CC=C7)C

Data Sources

EPA CompTox (DSSTox) · DTXSID50886351Retrieved 2026-04-06
PubChem · compound 100964Retrieved 2026-04-06
EPA Chemical Data ReportingReporting year: 2019 · Retrieved 2026-10-04
EPA Chemical Data ReportingReporting year: 2019 · Retrieved 2026-10-04

← Back to Dashboard ← Back to Textiles

Brief citations

Spiro[isobenzofuran-1(3H),9'-[9H]xanthen]-3-one, 6'-[ethyl(4-methylphenyl)amino]-3'-methyl-2'-(phenylamino)- (CAS 59129-79-2) https://chemicalindependence.com/chemical/59129-79-2/ EPA CompTox (DSSTox): DTXSID50886351. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID50886351 PubChem: 100964. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/100964 EPA Chemical Data Reporting: 59129-79-2. Reporting year: 2019. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 59129-79-2. Reporting year: 2019. https://www.epa.gov/chemical-data-reporting