1-(4-(Phenylazo)phenylazo)-2-naphthol
CI 26100 /SOLVENT RED 23
Key data
Source and verification note
CosIng Checker is an independent reference website built from publicly available European Commission cosmetic ingredient materials, including Annex II–VI datasets.
Use these pages for research, discovery and comparison, but verify critical regulatory decisions against the official source text and current law.
Record details
Colour index or glossary
CI 26100 /SOLVENT RED 23
Chemical name
1-(4-(Phenylazo)phenylazo)-2-naphthol
Chemical / IUPAC name
1-(4-(Phenylazo)phenylazo)-2-naphthol
Color
Red
Maximum concentration
Not to be used in products applied on mucous membranes
Warnings
Purity criteria:
anilin
Regulatory information
Regulation
(EC) 2009/1223
SCCS opinions
- Opinion on CI 26100 (Solvent Red 23 not defended as hair dye)
Identified ingredients
- CI 26100
- SOLVENT RED 23
Related records
Direct matches are limited for this record, so nearby entries from Annex IV are shown as well.
1-((4-Phenylazo)phenylazo)-2-naphthol (Solvent Red 23; CI 26100) when used as a substance in hair d…
CI 21230 /SOLVENT YELLOW 29
CI 40800
About this record
This page provides a structured view of a cosmetic ingredient record from the EU cosmetic ingredient reference database.
Use the annex link, CAS number, EC number and related records to continue exploring restrictions, warnings, allowed uses and associated reference data.