Bis-Hydroxyethyl/PPG-7/PEG-4 Dicyanomethylthiophene Azotoluidine

INCI: BIS-HYDROXYETHYL/PPG-7/PEG-4 DICYANOMETHYLTHIOPHENE AZOTOLUIDINE

CAS Number
515857-23-5 (verified)
Function
Cosmetic colorant, hair dyeing
Safety Rating
MODERATE

Regulatory Status

๐Ÿ‡ช๐Ÿ‡บ EU Status prohibited
๐Ÿ‡บ๐Ÿ‡ธ US Status permitted
US Notes No standalone CIR monograph identified. As a hair colorant, it would fall under FDA coal-tar hair dye provisions (21 CFR 73/74) or be subject to color additive petition requirements.

For full compliance data across 55 jurisdictions, use the Substance Compliance tool.

Safety Data

Margin of Safety (MoS)
not established
Dermal Absorption
low
Sensitization
low

Calculate MoS for your specific formulation with the MoS Calculator.

Expert Verdict

Azo bond may cleave to release aromatic amine (toluidine derivative); thiophene ring with dicyanomethyl groups is unusual and requires full SCCS-level dossier for Annex III confirmation.

โš ๏ธ
Concern Level: Moderate

Regulatory Flags

peg-ingredient colorant

Frequently Asked Questions

Is Bis-Hydroxyethyl/PPG-7/PEG-4 Dicyanomethylthiophene Azotoluidine safe in cosmetics?

Azo bond may cleave to release aromatic amine (toluidine derivative); thiophene ring with dicyanomethyl groups is unusual and requires full SCCS-level dossier for Annex III confirmation. The EU classifies Bis-Hydroxyethyl/PPG-7/PEG-4 Dicyanomethylthiophene Azotoluidine as "prohibited". Safety rating: MODERATE.

Is Bis-Hydroxyethyl/PPG-7/PEG-4 Dicyanomethylthiophene Azotoluidine allowed in the EU?

Bis-Hydroxyethyl/PPG-7/PEG-4 Dicyanomethylthiophene Azotoluidine EU regulatory status: prohibited. This is based on EU Regulation 1223/2009 and its amendments.

What does Bis-Hydroxyethyl/PPG-7/PEG-4 Dicyanomethylthiophene Azotoluidine do in cosmetics?

Bis-Hydroxyethyl/PPG-7/PEG-4 Dicyanomethylthiophene Azotoluidine functions as: Cosmetic colorant, hair dyeing. It is classified as a cosmetic ingredient in our database. CAS number: 515857-23-5 (verified).

What is the Margin of Safety for Bis-Hydroxyethyl/PPG-7/PEG-4 Dicyanomethylthiophene Azotoluidine?

not established The Margin of Safety (MoS) is calculated using SCCS methodology. A MoS above 100 is generally considered safe. Use the MoS Calculator tool to calculate MoS for your specific formulation and product category.

๐Ÿ“ฑ

Is Bis-Hydroxyethyl/PPG-7/PEG-4 Dicyanomethylthiophene Azotoluidine in Your Products?

Scan any product label with Piro โ€” our free ingredient scanner. Point your camera at the ingredients list and get instant safety scores for every ingredient.

Try Piro Free โ†’

Analyze Your Full Ingredient List

Paste any INCI list into the Decoder for instant safety analysis, or calculate the Margin of Safety for Bis-Hydroxyethyl/PPG-7/PEG-4 Dicyanomethylthiophene Azotoluidine in your formulation.