NOAEL Data Cosmetic Ingredient

1,1-Dimethoxynon-2-yne

Also known as: BRN 4372599, EINECS 236-249-9, 2-Nonyl-1-al dimethyl acetal, 2-Nonynal dimethylacetal, 2-Nonyn-1-al dimethylacetal (+1 more)

CAS 13257-44-8

1,1-Dimethoxynon-2-yne (CAS 13257-44-8) is a chemical substance. Key regulatory status: 2 regulatory/inventory lists, cosmetic ingredient cross-reference; source data from EPA ToxValDB, EPA CPDat, AICIS.

View cosmetic safety profile for 2-Nonyn-1-Al Dimethylacetal →

SOURCE NOAEL studies
NOAEL studies
6
SOURCE Chemical inventory jurisdictions
Regulatory lists
2
SOURCE EU CLP Annex VI
GHS signal
Not classified

Chemical Identity

CAS, identifiers, formula, and alternate names for the matched substance record.

SOURCE DSSTox identifiers 12 fields
Name
1,1-Dimethoxynon-2-yne
CAS Number
13257-44-8
DTXSID
DTXSID3051670
Molecular Formula
C11H20O2
InChI Key
RPJGIPAAHSGBEZ-UHFFFAOYSA-N
Monoisotopic Mass
184.14633
Synonyms
BRN 4372599EINECS 236-249-92-Nonyl-1-al dimethyl acetal2-Nonynal dimethylacetal2-Nonyn-1-al dimethylacetalParmavert

Functional Uses

Industrial and product-use categories associated with this substance.

SOURCE EPA CPDat 3 records
Fragrance

Regulatory Lists

Inventory, screening, and regulatory list matches from public chemical databases.

SOURCE EPA CPDat 2 records
ListKeywordSource
IFRA TransparencyIFRAIFRA
consumer_productP&GProctor & Gamble

NOAEL Studies

Toxicology endpoints rendered from public NOAEL study rows.

SOURCE NOAEL studies Showing 6 of 6 studies
ValueUnitEndpointRouteSpeciesSource
-%Incidence of positive responsesDermalHumanNTP ICE skin sensitization
2700ug/cm2Induction dose per skin areaDermalHumanNTP ICE skin sensitization
23622ug/cm2Induction dose per skin areaDermalHumanNTP ICE skin sensitization
>5000mg/kg bwLD50oralRatNTP ICE acute oral
3unitlessRelative reliability scoreDermalHumanNTP ICE skin sensitization
4unitlessRelative reliability scoreDermalHumanNTP ICE skin sensitization

Showing 6 of 6 studies

Australian Status (AICIS)

Australian industrial chemicals inventory status and applicable conditions.

SOURCE AICIS inventory 1 records
Inventory Status
listed

Cosmetic Safety Profile

Same-CAS cosmetic ingredient record for cross-vertical context.

SOURCE CosIng / Ingredients DB
EU Status
permitted
Max
-
Category
Fragrance
View full cosmetic safety profile →

Frequently Asked Questions

What is the NOAEL for 1,1-Dimethoxynon-2-yne?

1,1-Dimethoxynon-2-yne has 6 NOAEL studies in the database. The lowest reported value is 0 % via Dermal in Human. Source: NTP ICE skin sensitization.

What regulatory lists include 1,1-Dimethoxynon-2-yne?

1,1-Dimethoxynon-2-yne appears on 2 regulatory/inventory lists including IFRA Transparency, consumer_product. Source: EPA CPDat.

Is 1,1-Dimethoxynon-2-yne used in cosmetics?

Yes, 1,1-Dimethoxynon-2-yne is also indexed as a cosmetic ingredient under the name 2-Nonyn-1-Al Dimethylacetal. View the full cosmetic safety profile on the ingredient page for detailed safety data, SCCS opinions, and regulatory status.

Where does the safety data for 1,1-Dimethoxynon-2-yne come from?

Safety data is sourced from EPA ToxValDB, EPA CPDat, AICIS (Australian Industrial Chemicals Introduction Scheme), EPA DSSTox, CosIng / Ingredients DB. All data traces to primary regulatory sources and is updated from official government databases.

Is 1,1-Dimethoxynon-2-yne used outside industrial chemicals?

1,1-Dimethoxynon-2-yne also appears in cosmetics databases.