Is Kopyrrol safe in cosmetics?
Kopyrrol has a safety rating of "MODERATE" in our database. EU status: permitted. US status: permitted.
Moderate
Active Ingredient
Kopyrrol
Also known as: 2,4-Pyrimidinediamine, 6-(1-pyrrolidinyl)-, 3-oxide, Triaminodil
INCI: PYRROLIDINYL DIAMINOPYRIMIDINE OXIDE
Kopyrrol (CAS 55921-65-8) is a cosmetic active ingredient functioning as Hair Conditioning. EU Regulation 1223/2009 status: permitted. Industrial safety data is also available in the chemical safety database. Same-CAS public records also appear in industrial chemical safety data.
View industrial chemical safety profile for CAS 55921-65-8 →
Auto-generated CPSR Part A draft with source citations
Function
Hair Conditioning
Safety Rating
MODERATE
Chemistry & Identifiers
IUPAC Name
3-hydroxy-2-imino-6-pyrrolidin-1-ylpyrimidin-4-amine
InChIKey
JOITXEDSRYVTLJ-UHFFFAOYSA-N
Regulatory Status
EU EU Status
permitted
US US Status
permitted
US Notes
No CIR report. Supplier claims approval in EU, US, and Japan. Typical use 0.5-5.0%.
For full compliance data across multiple jurisdictions, use the Substance Compliance tool.
Safety Data
Margin of Safety, dermal absorption, and sensitization profile summaries for Kopyrrol.
Calculate MoS for your specific formulation with the MoS Calculator.
Expanded Jurisdictional Detail
Additional regulatory detail beyond the 7-jurisdiction summary: Saudi SFDA, Korea MFDS, ASEAN ACD, Japan/Korea, Brazil/India, and cross-jurisdictional restriction entries.
Additional Jurisdictional Restrictions (1)
| Jurisdiction | Status | Max % | Product Type |
|---|---|---|---|
| KR | prohibited | - | - |
Function Categories & List Membership
Cosmetic/Chemical Function Categories
Hair waving or straightening
Softener and conditioner
Expert Verdict
Expert safety assessment and concern-level summary for Kopyrrol.
Known Synonyms
2,4-Pyrimidinediamine, 6-(1-pyrrolidinyl)-, 3-oxide
Triaminodil
Chemical Function
Softener and conditioner
Hair waving or straightening
Frequently Asked Questions
Is Kopyrrol allowed in the EU?
Kopyrrol EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.
What does Kopyrrol do in cosmetics?
Kopyrrol functions as: Hair Conditioning. It is classified as a Active Ingredient in our database. CAS number: 55921-65-8.
Is Kopyrrol used outside cosmetics?
Kopyrrol also appears in industrial chemical safety data. The cross-vertical cards on this page render same-CAS public rows from the matched databases.
Compliance Tools
Check Kopyrrol compliance across multiple jurisdictions:
Ingredient Decoder
Paste a full ingredient list for instant analysis
82 Allergen Checker
Check for EU declarable fragrance allergens
Substance Compliance
Check compliance across multiple jurisdictions
MoS Calculator
Calculate Margin of Safety using SCCS methodology
Heavy Metal Limits
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