Why does CAS 6358-30-1 appear in more than one EU cosmetic annex?

A substance identified by CAS 6358-30-1 may appear in multiple EU cosmetic regulation annexes when it is subject to different conditions in different contexts — for example, restricted under Annex III with specific conditions, while also appearing in Annex IV as an approved colorant under separate entry conditions. Each entry must be reviewed individually.

How do I check if my formula contains a substance with CAS 6358-30-1?

Use the INCI Checker on CosIng Checker with INCI names, CAS numbers or EC numbers. Paste CAS 6358-30-1 to screen it directly, then review every linked annex record and supplier document.

CAS 2 records

CAS 6358-30-1

Q: How do I use CAS 6358-30-1 for compliance screening?

Cross-reference CAS 6358-30-1 against your raw material specification sheets and CoA documents. When it appears in Annex II, verify absence. When it appears in Annex III, verify that concentration limits and product type conditions are met. All annex entries sharing this CAS number are listed on this page.

CAS 6358-30-1 matches 2 EU annex records across Annex II–VI of Regulation 1223/2009.

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Chemical identity and properties

PubChem 2D chemical structure for CAS 6358-30-1

CAS 6358-30-1PubChem CID 61387

Carbazole Violet

IUPAC name: 2,20-dichloro-14,32-diethyl-18,36-dioxa-4,14,22,32-tetrazanonacyclo[19.15.0.03,19.05,17.07,15.08,13.023,35.025,33.026,31]hexatriaconta-1,3,5(17),6,8,10,12,15,19,21,23(35),24,26,28,30,33-hexadecaene

Molecular formula: C34H22Cl2N4O2
Molecular weight: 589.5 g/mol
Exact mass: 588.1119813 Da
XLogP3: 8.2
Topological polar surface area: 53.0 Å²
Hydrogen-bond donors: 0
Hydrogen-bond acceptors: 4
Covalent units: 1
Defined stereocentres: 0

Also known as

Dioxazine Violet8U8Z6628KFCI 51319Diindolo(3,2-b:3',2'-m)triphenodioxazine, 8,18-dichloro-5,15-diethyl-5,15-dihydro-Permanent Violet RCyanadur VioletHeliogen VioletDioxazine purple

16 more reported names

Permanent VioletLionol Violet HRLionogen Violet RLSandorin Violet BLVynamon Violet 2BHostaperm Violet RLPV Fast Violet BLChromofine Violet RELake Fast Violet RLUnisperse Violet B-EHelio Fast Violet BNFAST VIOLET RLLake Fast Violet RLBEMC Violet RL 10Monolite Fast Violet RHeliogen Violet R Toner

Open full PubChem record PubChem annotations 3D structure image

External database identifiers

EPA DTXSID:DTXSID2036293

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 6358-30-1

2 total

Annex

Entry

1360

8,18-Dichloro-5,15-diethyl-5,15-dihydrodiindolo[3,2-b:3',2'-m]triphenodioxazine (Pigment Violet 23; CI 51319) when used as a substance in hair dye products

228-767-9

Annex

Entry

CI 51319 / PIGMENT VIOLET 23

8,18-Dichloro-5,15-diethyl-5,15-dihydrodiindolo[3,2-b:3',2'-m]triphenodioxazine

28-767-9

Max concentration

How CAS 6358-30-1 is used on this site

CAS 6358-30-1 is the Chemical Abstracts Service identifier used to pin this page to a specific substance. In the current dataset, 2 EU annex records share 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 6358-30-1 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 6358-30-1 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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