Official EU label nameGlossary entry 6362

CI 15800

This record confirms an official common ingredient name for EU cosmetic product labelling. It does not by itself confirm that the substance is permitted, unrestricted or safe.

Global evidence snapshot

The resolved identity has matching regulatory evidence in 6 of 13 indexed market datasets: 6 country records and 1 EU Annex records. Every result and evidence gap is listed below.

6 markets with evidence
Markets checked
13
Markets with evidence
6
Evidence gaps
7
Resolved identifiers
4

A missing local match is not permission, approval or proof of safety. It means no strong identity match was resolved in that indexed dataset.

Resolved substance identity

CAS:6371-76-227757-79-5
EC:228-899-7248-638-0
Ingredient index records:
CI 15800
Cosmetic functions: COLORANT

Calcium bis[3-hydroxy-4-(phenylazo)-2-naphthoate]

Inventory restriction note: IV/26 (CI 15800) II/1331 (Pigment Red 64:1; CI 15800: when used as a substance in hair dye products)

8 matched or reported names
CI 15800Calcium bis[3-hydroxy-4-(phenylazo)-2-naphthoate]Calcium bis[3-hydroxy-4-(phenylazo)​-2-naphthoate] (Brilliant Lake Red R)3-Hydroxy-4-(phenylazo)-2-naphthoic acid and its calcium salt (Pigment Red 64:1; CI 15800), when used as a substance in hair dye products3-Hydroxy-4-(phenylazo)-2-naphthoic acid and its calcium saltÁcido 3-hidroxi-4-(fenilazo)-2-naftóico e seu sal de cálcio (Pigmento Vermelho 64:1; CI 15800), quando usado como substância que entra na composição de corantes capilares3-Hydroxy-4-(phenylazo)-2-naphthoic acid (CAS No. 27757-79-5) and its calcium salt (pigment red 64:1; CI 15800) (CAS No. 6371-76-2), when used as a substance in hair dye products3-Hydroxy-4-(phenylazo)-2-naphthoic acid and its calcium salt (Pigment Red 64:1; CI 15800) when used as a substance in hair dye products

Regulatory evidence in all 13 markets

Open each matched record for its scope, concentration, conditions, warnings and official source version.

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MarketResultRecordsDatasetMeaning / next action
European Union
EU
Conditional positive-list match1Open record 1
Complete annex dataset
Regulation (EC) 1223/2009 consolidated to 1 May 2026
Review every linked record and exact conditions.
Great Britain
GB
No local match0
Complete consolidated annex dataset
GB retained Regulation 1223/2009 schedules, effective 15 August 2026
No annex match is not approval and does not cover Northern Ireland, which follows the applicable EU framework.
Canada
CA
No local match0
Complete Hotlist snapshot
Health Canada Cosmetic Ingredient Hotlist, 13 August 2025
The Hotlist is an administrative compliance tool, not an exhaustive safety approval list.
New Zealand
NZ
Prohibited2Open record 1Open record 2
Complete schedules dataset
Cosmetic Products Group Standard schedules effective 1 January 2026
Review every linked record and exact conditions.
ASEAN
ASEAN
Prohibited1Open record 1
Complete regional annex dataset
ASEAN Cosmetic Directive annexes 2026-1, 22 June 2026
Review every linked record and exact conditions.
China
CN
No local match0
Complete prohibited catalogues plus official-source workflow
NMPA 2021 banned catalogues plus dynamic IECIC List I/List II system current since 2025
IECIC listing is not blanket approval; absence may require the new cosmetic ingredient route, and restrictions are checked separately.
Japan
JP
No local match0
Complete Standards appendices dataset
MHLW Standards for Cosmetics official English source and Japanese amendments checked for the imported snapshot
The Japanese text and subsequent notices are canonical; no local match is not a product-compliance conclusion.
South Korea
KR
No local match0
Complete current appendix dataset
MFDS Notice 2026-19, effective 18 March 2026
Korean source wording is canonical and other positive lists/notices may still apply to the formulation.
United States
US
No local match0
Complete enumerated federal ingredient rules
eCFR Title 21 issue date 27 August 2026
FDA has no general approved-cosmetic-ingredient catalogue; absence from these sections is not approval or proof of safety.
Australia
AU
No local match0
Complete cosmetic-relevant Poisons Standard subset plus official workflow
Therapeutic Goods (Poisons Standard—June 2026) Instrument 2026
An AICIS Inventory match is not cosmetic approval; no Inventory match can indicate a new, exempted, reported or confidential introduction.
Brazil
BR
Prohibited1Open record 1
Complete prohibited dataset plus current restricted-list workflow
ANVISA RDC 1.029/2026 and RDC 1.030/2026, published 15 June 2026
Review every linked record and exact conditions.
India
IN
Prohibited1Open record 1
Complete current Part 2 dataset plus official workflow for Parts 1, 3 and 4
Cosmetics Rules 2020 plus current BIS IS 4707 parts (1:2020, 2:2025, 3:2025, 4:2022)
Review every linked record and exact conditions.
Saudi Arabia
SA
Prohibited1Open record 1
Complete official list index
SFDA live prohibited/restricted lists, snapshot 30 August 2026
Review every linked record and exact conditions.
No market rows match this filter.

Matching market records and conditions

Exact Annex II–VI evidence

Chemical identity and properties

PubChem 2D chemical structure for CAS 27757-79-5
CAS 27757-79-5PubChem CID 80753

3-Hydroxy-4-(phenylazo)-2-naphthoic acid

IUPAC name
3-hydroxy-4-phenyldiazenylnaphthalene-2-carboxylic acid
Molecular formula
C17H12N2O3
Molecular weight
292.29 g/mol
Exact mass
292.08479225 Da
XLogP3
4.7
Topological polar surface area
82.3 Ų
Hydrogen-bond donors
2
Hydrogen-bond acceptors
5
Covalent units
1
Defined stereocentres
0

Also known as

2-Naphthalenecarboxylic acid, 3-hydroxy-4-(phenylazo)-EINECS 248-638-0NSC 11713DYMRMULFWJUGDJ-UHFFFAOYSA-N2-Naphthalenecarboxylicacid, 3-hydroxy-4-(2-phenyldiazenyl)-NSC-117133-Hydroxy-4-phenylazo-2-naphthoic acid4-phenylazo-3-hydroxy-2-naphthoic acid
3 more reported names
NCI60_000394DS-0011603-Hydroxy-4-(phenyldiazenyl)naphthalene-2-carboxylic acid
External database identifiers

Retrieved from NIH PubChem on 2026-08-31 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.

PubChem 2D chemical structure for CAS 6371-76-2
CAS 6371-76-2PubChem CID 135565537

D & C Red no. 31

IUPAC name
calcium bis(3-carboxy-1-phenyldiazenylnaphthalen-2-olate)
Molecular formula
C34H22CaN4O6
Molecular weight
622.6 g/mol
Exact mass
622.1165253 Da
Topological polar surface area
170.0 Ų
Hydrogen-bond donors
2
Hydrogen-bond acceptors
10
Covalent units
3
Defined stereocentres
0

Also known as

D&C Red No. 31Brilliant Lake MBrilliant lakered RTopaz Toner R 5Brilliant Scarlet GJapan Red 219Brilliant Red Toner RA11067 Red
16 more reported names
D and C Red No. 31Red No. 219CI 15800Red 219Symuler Brilliant Scarlet GDainichi Brilliant Scarlet GDainichi Brilliant Scarlet RGCCRIS 4906C.I. 15800 Ca SaltEINECS 228-899-7O63T5PV73PCI 15800:1 (Ca salt)R 2192-Naphthalenecarboxylic acid, 3-hydroxy-4-(phenylazo)-, calcium salt (2:1)AKA219RED 31
External database identifiers

Retrieved from NIH PubChem on 2026-08-31 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.

Additional authoritative substance research

These source-specific lookups can add hazard, toxicology, identity and assessment context. A link is a research route, not a claim that the source contains an exact record.

Cosmetic Ingredient Review safety assessments

Expert Panel conclusions, assessed ingredient groups, use conditions, dates and report documents

Independent expert review considered by FDA; not a government approval or binding market rule

Research this identity

FDA Global Substance Registration System

UNII identifiers, preferred names, substance types, codes and public substance relationships

Identity registry only; UNII availability does not imply FDA review or approval

Research this identity

ILO/WHO International Chemical Safety Cards

Hazards, symptoms, first aid, storage, incompatibilities and physical properties for covered chemicals

International occupational chemical-safety reference; not cosmetic-use approval

Research this identity

Japan NITE-CHRIP

Chemical identity, Japanese and foreign legal lists, GHS hazards and exposure-related information

Chemical-management evidence; cosmetic status remains governed by the applicable MHLW standard and market rules

Research this identity

NIOSH Pocket Guide to Chemical Hazards

REL, PEL, IDLH, properties, exposure routes, symptoms, target organs, first aid and measurement methods for covered workplace chemicals

US occupational-health guidance and limits; not a cosmetic ingredient decision

Research this identity

OECD eChemPortal

Gateway to authority-owned physical-property, fate, ecotoxicity, toxicity, exposure and GHS records

Discovery gateway; each linked authority remains responsible for its data

Research this identity

US EPA CompTox CTX APIs

DTXSID identity, experimental and predicted properties, toxicity, bioactivity, exposure and environmental data

Scientific and computational evidence; predictions must remain labelled and do not determine cosmetic legality

Research this identity

Continue the compliance check

1. Confirm identity

Match the supplier specification, CAS/EC identifiers and composition to this official label name. Similar wording is not proof of chemical equivalence.

2. Review restrictions

Check every exact Annex record shown above, plus CMR, nanomaterial, SCCS and later-amendment requirements that may apply.

3. Verify the formula

Evaluate concentration, product type, purity, warnings, claims and each target market before making a compliance decision.

Screen in a formulaOpen standalone comparison

Official source and scope

Imported from Commission Implementing Decision (EU) 2025/1175 (dataset version EU 2025/1175). The glossary supplies common ingredient names for the ingredient list required by Article 19(1)(g); it is not an approval or safety list.

Open official Decision