Is Pyrrolidinyl Diaminopyrimidine Oxide safe in cosmetics?
Pyrrolidinyl Diaminopyrimidine Oxide has a safety rating of "MODERATE" in our database. EU status: permitted. US status: permitted.
Moderate
Cosmetic Ingredient
Pyrrolidinyl Diaminopyrimidine Oxide
Also known as: 2,4-Pyrimidinediamine, 6-(1-pyrrolidinyl)-, 3-oxide, Triaminodil
INCI: PYRROLIDINYL DIAMINOPYRIMIDINE OXIDE
Pyrrolidinyl Diaminopyrimidine Oxide (CAS 55921-65-8) is a cosmetic cosmetic ingredient functioning as Hair conditioning, Hair waving/straightening; marketed as anti-hair loss and. 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, Hair waving/straightening; marketed as anti-hair loss and hair growth promoter (kopyrrol/aminopyrimidine derivative)
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
Not specifically regulated; permitted under general cosmetic ingredient provisions
For full compliance data across multiple jurisdictions, use the Substance Compliance tool.
Safety Data
Margin of Safety, dermal absorption, and sensitization profile summaries for Pyrrolidinyl Diaminopyrimidine Oxide.
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 Pyrrolidinyl Diaminopyrimidine Oxide.
Known Synonyms
2,4-Pyrimidinediamine, 6-(1-pyrrolidinyl)-, 3-oxide
Triaminodil
Chemical Function
Softener and conditioner
Hair waving or straightening
Frequently Asked Questions
Is Pyrrolidinyl Diaminopyrimidine Oxide allowed in the EU?
Pyrrolidinyl Diaminopyrimidine Oxide EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.
What does Pyrrolidinyl Diaminopyrimidine Oxide do in cosmetics?
Pyrrolidinyl Diaminopyrimidine Oxide functions as: Hair conditioning, Hair waving/straightening; marketed as anti-hair loss and hair growth promoter (kopyrrol/aminopyrimidine derivative). It is classified as a cosmetic ingredient in our database. CAS number: 55921-65-8.
Is Pyrrolidinyl Diaminopyrimidine Oxide used outside cosmetics?
Pyrrolidinyl Diaminopyrimidine Oxide 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 Pyrrolidinyl Diaminopyrimidine Oxide 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
Compare limits across jurisdictions
Related Ingredients
2-Hydroxypropylcarbamato Amodimethicone
Excellent
Same category
Hair conditioning; modified aminosili...
Acetamidoamodimethicone
Excellent
Same category
Hair conditioning agent (film-forming...
Glyceryl Dioleate/Linoleate/Linolenate
Excellent
Same category
Hair conditioning agent
Gondoic Acid
Excellent
Same category
Hair conditioning
Hydroxypropyldimethicone
Excellent
Same category
Skin/hair conditioning (silicone poly...
Hydroxypropyltrimonium Inulin
Excellent
Same category
Antistatic, hair conditioning
(20S)-Protopanaxadiol
Moderate
Similar safety
(Cnidium Officinale/Coptis Chinensis/Glycyrrhiza Uralensis) Root Extract
Moderate
Similar safety
Skin conditioning
(Cryptomeria Japonica/Chamaecyparis Obtusa) Stem Ferment Extract
Moderate
Similar safety
Antimicrobial, antioxidant, humectant
(Eclipta Prostrata/Houttuynia Cordata) Leaf Extract
Moderate
Similar safety
Skin conditioning
(Lepidium Meyenii/Sarcodon Aspratus) Root Water
Moderate
Similar safety
Skin conditioning
(Licorice/Reynoutria Japonica) Root/Stem Extract
Moderate
Similar safety
Skin conditioning, antioxidant
Kopyrrol
Moderate
Chemical family
Hair Conditioning
PYRROLOQUINOLINE QUINONE
Good
Browse nearby
Antioxidant, Humectant, Skin Conditio...
PYRUS COMMUNIS FRUIT EXTRACT
Good
Browse nearby
Skin Conditioning, Skin Protecting
Is Pyrrolidinyl Diaminopyrimidine Oxide in Your Products?
Scan any product label with Piro — our free ingredient scanner. Point your camera at the ingredients list and get instant safety scores for every ingredient.
Try Piro Free →Analyze Your Full Ingredient List
Paste any INCI list into the Decoder for instant safety analysis, or calculate the Margin of Safety for Pyrrolidinyl Diaminopyrimidine Oxide in your formulation.