C.I. Vat Orange 3
CAS 4378-61-4
Dibenzo[def,mno]chrysene-6,12-dione, 4,10-dibromo-
EPA and Census publish no US supply data for this chemical.
US productionNot reported
Top sourceNo public record
EPA lists this chemical for 2023 but publishes zero or no volume for both production and imports.
Why supply is unknownWhere It Comes From
EPA and Census publish no US supply data for this chemical.
EPA reports by year
- 2023
- US production Not published · Imports Not published
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.
Pigments Services
Why It Matters
No EPA sector or FDA product records name a use for this chemical.
Vendor Pricing
$2.57/gAaron Chemicals LLC
CountryHong Kong
Pack$257.00 / 100 g
Purity95%
Vendors13 available
Prices reflect listed pack sizes. Small research packs run far above bulk rates.
12 more vendors
| Vendor | Country Supplier country. Where available, shows shipping origin. When the supplier ships from a different country than where they are registered, both are shown. Most suppliers show registration country only. | $/g | Pack | Purity |
|---|---|---|---|---|
| Angene Chemical | China → Hong Kong | $2.66 | 500 g | 95% |
| BLD Pharmatech Ltd. | China | $3.77 | 100 g | 95% |
| Combi-Blocks, Inc. | United States | $4.00 | 100 g | 100% |
| AK Scientific, Inc. | United States | $4.00 | 100 g | — |
| Ambeed, Inc. | United States | $4.15 | 100 g | 95% |
| A2B Chem LLC | United States | $4.28 | 100 g | — |
| AA BLOCKS | United States | $4.45 | 100 g | — |
| BLD Pharmatech GmbH | Germany | $5.84 | 25 g | 95% |
| BLD Pharmatech Co., Limited | United States | $6.44 | 25 g | 95% |
| Angene International Limited | United States | $6.49 | 100 g | — |
| AstaTech, Inc | United States | $18.60 | 5 g | 95% |
| Angene | China → Hong Kong | $4266.67 | 30 mg | 95% |
Chemical Identity
CAS4378-61-4
PubChem CIDNot recorded
DTXSIDDTXSID8044674
FormulaC22H8Br2O2
Mol. Weight464.112 g/mol
SMILESBrC1=C2C=CC=C3C(=O)C4=CC(Br)=C5C=CC=C6C(=O)C(=C1)C(=C23)C4=C56
Data Sources
- EPA TSCA InventoryRetrieved 2026-04-29
- EPA Chemical Data ReportingReporting year: 2023 · Retrieved 2026-10-04
Brief citations
C.I. Vat Orange 3 (CAS 4378-61-4) https://chemicalindependence.com/chemical/4378-61-4/ EPA TSCA Inventory: CAS 4378-61-4. Retrieved 2026-04-29. https://www.epa.gov/tsca-inventory EPA Chemical Data Reporting: 4378-61-4. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting