7,16-Dichloro-6,15-dihydroanthrazine-5,9,14,18-tetrone
CI 69825
7,16-Dichloro-6,15-dihydroanthrazine-5,9,14,18-tetrone appears in Annex IV as a positive-list colorant entry for EU cosmetics.
Chemical identity and properties

Vat Blue 6
- IUPAC name
- 15,30-dichloro-2,17-diazaheptacyclo[16.12.0.03,16.04,13.06,11.019,28.021,26]triaconta-1(30),3,6,8,10,13,15,18,21,23,25,28-dodecaene-5,12,20,27-tetrone
- Molecular formula
- C28H12Cl2N2O4
- Molecular weight
- 511.3 g/mol
- Exact mass
- 510.0174123 Da
- XLogP3
- 6.1
- Topological polar surface area
- 92.3 Ų
- Hydrogen-bond donors
- 2
- Hydrogen-bond acceptors
- 6
- Covalent units
- 1
- Defined stereocentres
- 0
Also known as
16 more reported names
External database identifiers
- ChEMBL:CHEMBL2001164
- EPA DTXSID:DTXSID9044532
Evidence from additional scientific databases
NIH PubChem PUG-View
Attributed physical-property, hazard, environmental and use annotations.
- Physical Description: Dry Powder Source: EPA Chemical Data Reporting (CDR)
- Physical Description: Solid; [MSDSonline] Source: Haz-Map, Information on Hazardous Chemicals and Occupational Diseases
- Solubility: ANTHRAQUINONES EXTREMELY INSOL IN WATER & INSOL IN COMMON SOLVENTS /PIGMENTS/ Source: Hazardous Substances Data Bank (HSDB)
- Note: This chemical does not meet GHS hazard criteria for 100% (34 of 34) of all reports. Source: European Chemicals Agency (ECHA)
- GHS Hazard Statements: Not Classified; Reported as not meeting GHS hazard criteria by 34 of 34 companies. For more detailed information, please visit ECHA C&L website. Source: European Chemicals Agency (ECHA)
- ECHA C&L Notifications Summary: Aggregated GHS information provided per 34 reports by companies from 1 notifications to the ECHA C&L Inventory.; Reported as not meeting GHS hazard criteria per 34 of 34 reports by companies.; There are 0 notifications provided by 0 of 34 reports by companies with hazard statement code(s).; Information may vary between notifications depending on impurities, additives, and other factors. The percentage value in parenthesis indicates the notified classification ratio from companies that provide hazard codes. Only hazard codes with percentage values above 10% are shown. For more detailed information, please visit ECHA C&L website. Source: European Chemicals Agency (ECHA)
- GHS Hazard Statements: Not Classified; Reported as not meeting GHS hazard criteria by 1 of 1 companies. For more detailed information, please visit ECHA C&L website. Source: European Chemicals Agency (ECHA)
- Consumer Uses: Dye Source: EPA Chemical Data Reporting (CDR)
- Industry Uses: Dye Source: EPA Chemical Data Reporting (CDR)
- Sources/Uses: Used as dye for textiles, automotive paints, plastics, rubber, printing inks, and pigments; [HSDB] Source: Haz-Map, Information on Hazardous Chemicals and Occupational Diseases
- Industrial Processes with risk of exposure: Painting (Pigments, Binders, and Biocides) [Category: Paint]; Textiles (Printing, Dyeing, or Finishing) [Category: Industry] Source: Haz-Map, Information on Hazardous Chemicals and Occupational Diseases
- Uses: AUTOMOTIVE PAINTS, PLASTICS, RUBBER, PRINTING INK, PIGMENTS /INDANTHRENE BLUES/ Source: Hazardous Substances Data Bank (HSDB)
- Uses: DYE FOR TEXTILES- VISCOSE & SILK Source: Hazardous Substances Data Bank (HSDB)
Mapped by: Existing checksum-valid CAS to unique PubChem CID match. Retrieved: 2026-08-31. Open source record
Scientific classifications and hazard annotations provide context and do not replace the market-specific regulatory decision shown above.
Additional source coverage and match status
| Source | Result | Checked |
|---|---|---|
| NIH PubChem PUG-View | Exact match | 2026-08-31 |
A recorded no-match is useful evidence that the source was checked; it is not a claim that the substance does not exist elsewhere.
Retrieved from NIH PubChem on 2026-09-02 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.
Record details
Colour index or glossary
CI 69825
Chemical name
7,16-Dichloro-6,15-dihydroanthrazine-5,9,14,18-tetrone
Chemical / IUPAC name
7,16-Dichloro-6,15-dihydroanthrazine-5,9,14,18-tetrone
Color
Blue
Regulatory information
Identified ingredients
Key data
Inventory links for 7,16-Dichloro-6,15-dihydroanthrazine-5,9,14,18-tetrone
Related records for 7,16-Dichloro-6,15-dihydroanthrazine-5,9,14,18-tetrone
Direct matches are limited for this record, so nearby entries from Annex IV are shown as well.
What Annex IV means for 7,16-Dichloro-6,15-dihydroanthrazine-5,9,14,18-tetrone
7,16-Dichloro-6,15-dihydroanthrazine-5,9,14,18-tetrone is an approved colorant listed in Annex IV of EU Cosmetics Regulation 1223/2009. Only colorants on this positive list may be used to colour cosmetic products on the EU market.
Some colorants in Annex IV are restricted by product type — for example, prohibited from use around the eyes or in products applied to mucous membranes. Check the product type and conditions fields above before use.
This record is linked to 1 CosIng inventory ingredient for name and identifier cross-reference. The page also surfaces 12 related annex records with overlapping identifiers, annex logic or naming patterns.
Compliance checklist
- Confirm colorant is used only in permitted product types listed above.
- Record the Colour Index number and CAS identifier in the ingredient declaration.
Frequently asked questions
Source note for Annex IV record 7,16-Dichloro-6,15-dihydroanthrazine-5,9,14,18-tetrone
This page summarizes one Annex IV record for 7,16-Dichloro-6,15-dihydroanthrazine-5,9,14,18-tetrone from public European Commission cosmetic materials and adds linked inventory or identifier matches when available.
Use this record page to review Annex IV conditions for 7,16-Dichloro-6,15-dihydroanthrazine-5,9,14,18-tetrone, but confirm any final regulatory decision against the current official annex wording and source files.
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