Is 2-Nonyn-1-Al Dimethylacetal safe in cosmetics?
2-Nonyn-1-Al Dimethylacetal has a safety rating of "GOOD" in our database. EU status: permitted. US status: permitted.
Good
Cosmetic Ingredient
2-Nonyn-1-Al Dimethylacetal
Also known as: BRN 4372599, EINECS 236-249-9, 2-Nonyl-1-al dimethyl acetal, 2-Nonynal dimethylacetal, Parmavert
INCI: 2-NONYN-1-AL DIMETHYLACETAL
2-Nonyn-1-Al Dimethylacetal (CAS 13257-44-8) is a cosmetic cosmetic ingredient functioning as Fragrance ingredient with green, violet-leaf odor. 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 13257-44-8 →
Auto-generated CPSR Part A draft with source citations
Function
Fragrance ingredient with green, violet-leaf odor
Safety Rating
GOOD
Chemistry & Identifiers
IUPAC Name
1,1-dimethoxynon-2-yne
InChIKey
RPJGIPAAHSGBEZ-UHFFFAOYSA-N
Regulatory Status
EU EU Status
permitted
US US Status
permitted
US Notes
Permitted; RIFM safety assessment completed
For full compliance data across multiple jurisdictions, use the Substance Compliance tool.
Safety Data
Margin of Safety, dermal absorption, and sensitization profile summaries for 2-Nonyn-1-Al Dimethylacetal.
Calculate MoS for your specific formulation with the MoS Calculator.
Sensitization AOP Dashboard
Adverse Outcome Pathway data across 5 assays (DPRA, KeratinoSens, hCLAT, LLNA, NESIL) aggregated from public sources.
NESIL
2700 µg/cm²
GHS: 1B
Human: positive
Source: HPPT: [343] Kligman AM (1975): Report to RIFM, 9 December, unpublished.
HRIPT Human Patch Test Studies
2 human repeat insult patch tests aggregated from dermatological literature.
| Test Type | N | Sensitized | Dose µg/cm² | NESIL µg/cm² | Potency |
|---|---|---|---|---|---|
| HMT | - | 0 | 2700 | - | - |
| HRIPT | - | 0 | 23622 | - | - |
Function Categories & List Membership
Cosmetic/Chemical Function Categories
Fragrance
Regulatory List Membership (2)
IFRA Fragrance Transparency List
Consumer Product Chemical
Expert Verdict
Expert safety assessment and concern-level summary for 2-Nonyn-1-Al Dimethylacetal.
Regulatory Flags
potential-allergen
fragrance-component
ifra_fragrance
Known Synonyms
BRN 4372599
EINECS 236-249-9
2-Nonyl-1-al dimethyl acetal
2-Nonynal dimethylacetal
Parmavert
Chemical Function
Fragrance
Regulatory Lists
IFRA Transparency
consumer_product
Australian Status
AICIS status: listed
Frequently Asked Questions
Is 2-Nonyn-1-Al Dimethylacetal allowed in the EU?
2-Nonyn-1-Al Dimethylacetal EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.
What does 2-Nonyn-1-Al Dimethylacetal do in cosmetics?
2-Nonyn-1-Al Dimethylacetal functions as: Fragrance ingredient with green, violet-leaf odor. It is classified as a cosmetic ingredient in our database. CAS number: 13257-44-8.
Is 2-Nonyn-1-Al Dimethylacetal used outside cosmetics?
2-Nonyn-1-Al Dimethylacetal 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 2-Nonyn-1-Al Dimethylacetal compliance across multiple jurisdictions:
Ingredient Decoder
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82 Allergen Checker
Check for EU declarable fragrance allergens
Substance Compliance
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MoS Calculator
Calculate Margin of Safety using SCCS methodology
Heavy Metal Limits
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