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CAS 1 record

CAS 130-20-1

CAS 130-20-1 matches 1 EU annex record across Annex II–VI of Regulation 1223/2009.

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Chemical identity and properties

PubChem 2D chemical structure for CAS 130-20-1
CAS 130-20-1PubChem CID 8532

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

D&C Blue No. 9Ahcovat Blue BCF3,3'-DichloroindanthreneC.I. Vat Blue 6DichloroindanthroneAlizanthrene Blue RCIndanthrene Blue BCFNavinon Blue BC
16 more reported names
Carbanthrene Blue BCFPonsol Blue BCSPonsol Blue BFPonsol Blue BFDPonsol Blue BFNPonsol Blue BFPCibanone Blue FGCibanone Blue GFParadone Blue RCTinon Blue GFTinon Blue GLFenan Blue BCSVat Green BBlue KCaledon Blue XRC5,9,14,18-Anthrazinetetrone, 7,16-dichloro-6,15-dihydro-
Open full PubChem recordPubChem annotations3D structure image
External database identifiers

Evidence from additional scientific databases

NIH PubChem PUG-View
Exact identifier match8532

Attributed physical-property, hazard, environmental and use annotations.

  • 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)

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
SourceResultChecked
NIH PubChem PUG-ViewExact match2026-08-31

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.

Records for CAS 130-20-1

1 total

How CAS 130-20-1 is used on this site

CAS 130-20-1 is the Chemical Abstracts Service identifier used to pin this page to a specific substance. In the current dataset, 1 EU annex record shares this identifier, which helps you cross-check whether the same substance appears under one regulatory context or several.

Use this page when a supplier specification, SDS or raw-material dossier gives you CAS 130-20-1 and you need to see every linked Annex II–VI record in one place. The entry cards above are the quickest route to concentration limits, warnings, annex placement and product-type conditions.

Frequently asked questions

A substance identified by CAS 130-20-1 may appear in multiple EU cosmetic regulation annexes when it is subject to different conditions in different contexts. For example, a substance might be restricted under Annex III with specific conditions, and the same CAS might also appear in Annex IV as an approved colorant under separate entry conditions. Each entry must be reviewed individually.

Cross-reference the CAS number against your raw material specification sheets and CoA documents. When a CAS appears in Annex II, verify absence. When it appears in Annex III, verify that concentration limits and product type conditions are met in your formulation. All annex entries sharing this CAS number are listed above.

A CAS number is assigned by the Chemical Abstracts Service (USA) and is globally recognised. An EC number is a European Commission identifier from inventories such as EINECS, ELINCS or the NLP list. Both identifiers may appear in EU cosmetic annex entries. Some substances have both, some have only one, and some older entries may have neither.

The INCI Checker accepts ingredient names, CAS numbers and EC numbers. Check this CAS number directly, then verify the result against supplier specification sheets and every linked annex condition.
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Tools & next steps

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