D&C Violet 2

CAS 81-48-1

U.S. production volumes are classified as confidential business information.

US productionCBI

Confidential Business Information. The EPA withholds this volume because publishing it could reveal the reporting company's trade secrets.

Import value, 2024$43M

Top sourceJapan 29%

At least one company claimed its 2023 production or import volume for this chemical as confidential, so EPA withholds it.

Why supply is unknown

Production is reported production, not a complete census of factories. US production volume is confidential. Production reporting year: 2023. Import value and source-country shares describe a shared customs category, not a separate chemical measurement.

Where It Comes From

Customs basis: HS 320411 · basket

EPA reports by year

2023: US production Confidential · Imports Confidential
2019: US production Confidential · Imports Confidential

These shares come from HS customs code 320411, which covers 44 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries

Country of origin for US imports, from Census customs data (2024).

JP 29%JapanMX 21%MexicoID 14%IndonesiaIN 13%IndiaCN 11%China

Canada
South Korea
Hong Kong
Italy
Netherlands
Denmark
Brazil
Belgium
Switzerland

Domestic parents -- activity not disclosed (1)

EPA records name a US company for this chemical but do not disclose whether the company made it here or imported it.

Sensient Colors

Why It Matters

Sectors

Paper & Printing

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

•Dye in Printing Ink Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product

Vendor Pricing

$0.05/gAaron Chemicals LLC

CountryHong Kong

Pack$26.00 / 500 g

Purity98%

Vendors18 available

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

17 more vendors

Vendor	Country	$/g	Pack	Purity
Angene Chemical	China → Hong Kong	$0.06	500 g	98%
Fluorochem EU	Germany	$0.10	1 kg	98%
A2B Chem LLC	United States	$0.10	100 g	97%
AA BLOCKS	United States	$0.12	100 g	97%
Chemscene	United States	$0.12	1 kg	—
BLD Pharmatech Ltd.	China	$0.14	1 kg	97%
BLD Pharmatech GmbH	Germany	$0.14	500 g	97%
Ambeed, Inc.	United States	$0.15	1 kg	97%
MedChemExpress MCE	Sweden	$0.15	1 kg	—
BLD Pharmatech Co., Limited	United States	$0.15	500 g	97%
Combi-Blocks, Inc.	United States	$0.25	1 kg	97%
AK Scientific, Inc.	United States	$1.20	25 g	95%
AstaTech (2 weeks)	United States	$3.08	25 g	95%
Angene International Limited	United States	$3.28	25 g	95%
Angene	China → Hong Kong	$4266.67	30 mg	98%
Asinex	Netherlands	$9292.80	50 mg	90%
TimTec, LLC (back-ordered)	United States	$32000.00	15 mg	94%

Chemical Identity

CAS81-48-1

PubChem CID6680

DTXSIDDTXSID1026293

FormulaC21H15NO3

Mol. Weight329.3 g/mol

SMILESCC1=CC=C(C=C1)NC2=C3C(=C(C=C2)O)C(=O)C4=CC=CC=C4C3=O

Data Sources

EPA CompTox (DSSTox) · DTXSID1026293Retrieved 2026-04-06
PubChem · compound 6680Retrieved 2026-04-06
EPA Chemical Data ReportingReporting year: 2023 · Retrieved 2026-10-04
EPA Chemical Data ReportingReporting year: 2023 · Retrieved 2026-10-04
US Census international tradeReporting year: 2024 · Retrieved 2026-10-04

← Back to Dashboard ← Back to Paper & Printing

Brief citations

D&C Violet 2 (CAS 81-48-1) https://chemicalindependence.com/chemical/81-48-1/ EPA CompTox (DSSTox): DTXSID1026293. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID1026293 PubChem: 6680. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/6680 EPA Chemical Data Reporting: 81-48-1. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 81-48-1. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 320411 for CAS 81-48-1. Reporting year: 2024. https://usatrade.census.gov/