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Annex IV Entry 97 14/08/2020

Bisbenzimidazo[2,1-b:2',1'-i]benzo[lmn][3,8]phenanthroline-8,17-dione

CI 71105

Bisbenzimidazo[2,1-b:2',1'-i]benzo[lmn][3,8]phenanthroline-8,17-dione appears in Annex IV as a positive-list colorant entry for EU cosmetics. Maximum concentration in this record: Not to be used in products applied on mucous membranes.

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Permitted colorant— Annex IV, EU Regulation 1223/2009
Max conc.: Not to be used in products applied on mucous membranes
Entry: 97

Chemical identity and properties

PubChem 2D chemical structure for CAS 4424-06-0
CAS 4424-06-0PubChem CID 78141

C.I. Pigment Orange 43

C.i. pigment orange 43 is a fine orange powder. (NTP, 1992) — CAMEO Chemicals

IUPAC name
3,10,17,24-tetrazaoctacyclo[13.13.2.02,10.04,9.012,29.016,24.018,23.026,30]triaconta-1(29),2,4,6,8,12,14,16,18,20,22,26(30),27-tridecaene-11,25-dione
Molecular formula
C26H12N4O2
Molecular weight
412.4 g/mol
Exact mass
412.09602564 Da
XLogP3
4.8
Topological polar surface area
69.8 Ų
Hydrogen-bond donors
0
Hydrogen-bond acceptors
4
Covalent units
1
Defined stereocentres
0

Also known as

trans-PerinoneBordeaux RRNbisbenzimidazo[2,1-b:2',1'-i]benzo[lmn][3,8]phenanthroline-8,17-dioneVat Scarlet 2ZhC.I. Vat Orange 7Hostaperm Vat Orange GRSymuler Fast Orange GRDBrilliant Orange GR
16 more reported names
Hostaperm Orange GRVat Brilliant OrangeMikethrene Orange GROstanthren Orange GRPv Fast Orange GRLOstanthrene Orange GRParadone Brilliant Orange GRIndanthrene Brilliant Orange GRPTinon Brilliant Orange GRThrene Brilliant Orange GRIndoFast Orange OV 5983Cibanone Brilliant Orange GRHostavat Brilliant Orange GRMikethren Brilliant Orange GRFenanthren Brilliant Orange GRIndanthren Brilliant Orange GR
Open full PubChem recordPubChem annotations3D structure image
External database identifiers

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

Maximum concentration

Not to be used in products applied on mucous membranes

Colour index or glossary

CI 71105

Chemical name

Bisbenzimidazo[2,1-b:2',1'-i]benzo[lmn][3,8]phenanthroline-8,17-dione

Chemical / IUPAC name

Bisbenzimidazo[2,1-b:2',1'-i]benzo[lmn][3,8]phenanthroline-8,17-dione

Color

Orange

Regulatory information

Regulation

(EC) 2009/1223

See every entry this act set

Identified ingredients

Key data

CAS
4424-06-0
EC
224-597-4
Annex
IV
Entry number
97

Inventory links for Bisbenzimidazo[2,1-b:2',1'-i]benzo[lmn][3,8]phenanthroline-8,17-dione

Inventory Restriction reference
Ref 32791

CI 71105

CAS: 4424-06-0
EC: 224-597-4

Direct matches are limited for this record, so nearby entries from Annex IV are shown as well.

Annex IV 96
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CI 69825

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EC: 240-980-2
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CI 73000

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CI 69800

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CI 73015

CAS: 860-22-0
EC: 212-728-8
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CI 62045

CAS: 4368-56-3
EC: 224-460-9
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CAS: 2379-74-0
EC: 219-163-6
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CI 61585

CAS: 4474-24-2
EC: 224-748-4
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CI 73385

CAS: 5462-29-3
EC: 226-750-0
Annex IV 92
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CI 61570

CAS: 4403-90-1
EC: 224-546-6
Annex IV 102
Nearby record in the same annex

CI 73900

CAS: 1047-16-1
EC: 213-879-2
Annex IV 91
Nearby record in the same annex

CI 61565

CAS: 128-80-3
EC: 204-909-5
Annex IV 103
Nearby record in the same annex

CI 73915

CAS: 16043-40-6; 980-26-7
EC: -; 213-561-3

What Annex IV means for Bisbenzimidazo[2,1-b:2',1'-i]benzo[lmn][3,8]phenanthroline-8,17-dione

Bisbenzimidazo[2,1-b:2',1'-i]benzo[lmn][3,8]phenanthroline-8,17-dione 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

Yes. Bisbenzimidazo[2,1-b:2',1'-i]benzo[lmn][3,8]phenanthroline-8,17-dione is included in Annex IV of EU Cosmetics Regulation 1223/2009 as a permitted colorant. Only colorants on this positive list may be used to colour cosmetic products in the EU. Check the product type conditions above for any use restrictions.

CAS 4424-06-0 is the unique numerical identifier assigned to Bisbenzimidazo[2,1-b:2',1'-i]benzo[lmn][3,8]phenanthroline-8,17-dione by the Chemical Abstracts Service. In cosmetic compliance work, the CAS number is used to cross-reference the substance across regulatory databases, raw material specifications and safety assessment reports. Multiple EU annex entries may share the same CAS number if the same substance appears under different conditions or in different annexes.

The maximum concentration of Not to be used in products applied on mucous membranes applies to the concentration of the substance in the ready-to-use cosmetic product. When the substance is supplied as part of a blend or mixture, the calculation must account for the contribution of all sources in the formulation. The combined concentration must not exceed the stated limit.

Use the INCI Checker tool on this site to paste your full ingredient list (INCI) and scan it against all Annex II–VI entries. The tool highlights any ingredients that match restricted, prohibited or allergen-flagged records. This is useful for rapid compliance screening of finished product formulas or raw material declarations.
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Source note for Annex IV record Bisbenzimidazo[2,1-b:2',1'-i]benzo[lmn][3,8]phenanthroline-8,17-dione

This page summarizes one Annex IV record for Bisbenzimidazo[2,1-b:2',1'-i]benzo[lmn][3,8]phenanthroline-8,17-dione 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 Bisbenzimidazo[2,1-b:2',1'-i]benzo[lmn][3,8]phenanthroline-8,17-dione, but confirm any final regulatory decision against the current official annex wording and source files.

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