Poor Cosmetic Ingredient Sensitization Data

Hexamethylindanopyran

INCI: HEXAMETHYLINDANOPYRAN

CAS Number
1222-05-5 (also known as Galaxolide® / HHCB)
Function
Perfuming / fragrance
Safety Rating
POOR

Regulatory Status

🇪🇺 EU Status prohibited
🇺🇸 US Status permitted
US Notes Permitted — no specific CFR restriction currently in force

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

Safety Data

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

Calculate MoS for your specific formulation with the MoS Calculator.

Sensitization Profile

Contact sensitization data for Hexamethylindanopyran based on clinical patch test studies and IFRA standards.

Sensitization Rate
low
Allergen Class
fragrance
EU Allergen Listed
yes
Patch Test Positive Rate
0.1%
Cross-reactivity Group
none
Reaction Type
contact-dermatitis
IFRA Restricted

Source: EU 2023/1545; SCCS/1459/11

Expert Verdict

HIGH PRIORITY. France's CLH proposal for reproductive toxicity (Cat. 1B) and endocrine disruption could result in Annex II prohibition under Article 15 of Reg. 1223/2009. Environmental persistence and bioaccumulation documented. CPSR assessors should monitor ECHA RAC opinion timeline. If classified CMR 1B, Article 15 requires explicit SCCS safety opinion to continue use.

⚠️
Concern Level: High

Regulatory Flags

fragrance-component

Frequently Asked Questions

Is Hexamethylindanopyran safe in cosmetics?

HIGH PRIORITY. France's CLH proposal for reproductive toxicity (Cat. 1B) and endocrine disruption could result in Annex II prohibition under Article 15 of Reg. 1223/2009. Environmental persistence and bioaccumulation documented. CPSR assessors should monitor ECHA RAC opinion timeline. If classified CMR 1B, Article 15 requires explicit SCCS safety opinion to continue use. The EU classifies Hexamethylindanopyran as "prohibited". Safety rating: POOR.

Is Hexamethylindanopyran allowed in the EU?

Hexamethylindanopyran EU regulatory status: prohibited. This is based on EU Regulation 1223/2009 and its amendments.

What does Hexamethylindanopyran do in cosmetics?

Hexamethylindanopyran functions as: Perfuming / fragrance. It is classified as a cosmetic ingredient in our database. CAS number: 1222-05-5 (also known as Galaxolide® / HHCB).

What is the Margin of Safety for Hexamethylindanopyran?

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.

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