Alpha-Methyl-Alpha-Vinyl-Benzenepropanenitrile

Also known as: EINECS 227-289-8, NSC 52269

INCI: ALPHA-METHYL-ALPHA-VINYL-BENZENEPROPANENITRILE

Alpha-Methyl-Alpha-Vinyl-Benzenepropanenitrile (CAS 5765-44-6) is a cosmetic cosmetic ingredient functioning as Fragrance (Perfuming) — used in floral/muguet fragrance compositions. EU Regulation 1223/2009 status: prohibited. Industrial safety data is also available in the chemical safety database. Same-CAS public records also appear in industrial chemical safety and food safety data.

View industrial chemical safety profile for CAS 5765-44-6 →

Auto-generated CPSR Part A draft with source citations
Function
Fragrance (Perfuming) — used in floral/muguet fragrance compositions
Safety Rating
GOOD

Chemistry & Identifiers

Formula
C4H5NO
MW
83.09 g/mol
PubChem CID
79833
IUPAC Name
5-methyl-1,2-oxazole
InChIKey
AGQOIYCTCOEHGR-UHFFFAOYSA-N

Regulatory Status

EU EU Status prohibited
US US Status permitted
US Notes Not restricted by FDA

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

Safety Data

Margin of Safety, dermal absorption, and sensitization profile summaries for Alpha-Methyl-Alpha-Vinyl-Benzenepropanenitrile.

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.

JPKR Japan/Korea Cosmetics
Korea (Restricted): max 0.12%
Additional Jurisdictional Restrictions (1)
Jurisdiction Status Max % Product Type
ASEAN restricted 2% (hair care); 2% (nail care) Hair care; nail care

Expert Verdict

Expert safety assessment and concern-level summary for Alpha-Methyl-Alpha-Vinyl-Benzenepropanenitrile.

Regulatory Flags

fragrance-component

Known Synonyms

EINECS 227-289-8 NSC 52269

Cross-Vertical Safety Context

Same-CAS public records found in food safety data.

SOURCE EFSA / FDA GRAS food_additives

Food Safety Data

Same-CAS food additive or FDA GRAS records from the core public database.

Food Name
Methylliberine (Dynamine)
Food Category
sports_nutrition
View full food safety profile →

Frequently Asked Questions

Is Alpha-Methyl-Alpha-Vinyl-Benzenepropanenitrile safe in cosmetics?

Alpha-Methyl-Alpha-Vinyl-Benzenepropanenitrile has a safety rating of "GOOD" in our database. EU status: prohibited. US status: permitted.

Is Alpha-Methyl-Alpha-Vinyl-Benzenepropanenitrile allowed in the EU?

Alpha-Methyl-Alpha-Vinyl-Benzenepropanenitrile EU regulatory status: prohibited. This is based on EU Regulation 1223/2009 and its amendments.

What does Alpha-Methyl-Alpha-Vinyl-Benzenepropanenitrile do in cosmetics?

Alpha-Methyl-Alpha-Vinyl-Benzenepropanenitrile functions as: Fragrance (Perfuming) — used in floral/muguet fragrance compositions. It is classified as a cosmetic ingredient in our database. CAS number: 5765-44-6.

Is Alpha-Methyl-Alpha-Vinyl-Benzenepropanenitrile used outside cosmetics?

Alpha-Methyl-Alpha-Vinyl-Benzenepropanenitrile also appears in industrial chemical safety and food safety data. The cross-vertical cards on this page render same-CAS public rows from the matched databases.

Does Alpha-Methyl-Alpha-Vinyl-Benzenepropanenitrile have different safety status in cosmetics vs industrial chemicals?

Alpha-Methyl-Alpha-Vinyl-Benzenepropanenitrile is prohibited in EU cosmetics but has active industrial GHS classifications (H226).

Related Ingredients

2,6-Dimethyl-7-octen-2-ol (Dihydromyrcenol)
Excellent Same category
Fragrance (perfuming), masking
2-Ethoxy-2,6,6-Trimethyl-9-Methylenebicyclo[3.3.1]Nonane (Boisiris™)
Excellent Same category
Fragrance (rich woody, orris/iris roo...
3,6-Dimethyl-3-Octyl Acetate
Excellent Same category
Fragrance / Perfuming agent with flor...
3-Methyl-5-(2,2,3-Trimethyl-3-Cyclopentenyl)Pent-4-En-2-Ol (Sandalore)
Excellent Same category
Perfuming / Fragrance (sandalwood note)
4-Tert-Butylcyclohexyl Acetate
Excellent Same category
Fragrance
Acetoin
Excellent Same category
Skin conditioning, fragrance
(AGARICUS BLAZEI FERMENT + GANODERMA LUCIDUM FERMENT + GANODERMA MULTIPILEUM FERMENT) EXTRACT
Good Similar safety
Anti-sebum, Antioxidant, Skin Protecting
(ANGELICA ACUTILOBA/PAEONIA LACTIFLORA/REHMANNIA GLUTINOSA) ROOT/CNIDIUM OFFICINALE RHIZOME EXTRACT
Good Similar safety
Skin Conditioning, Skin Conditioning ...
(ANGELICA ACUTILOBA/PAEONIA LACTIFLORA/REHMANNIA GLUTINOSA/SCUTELLARIA BAICALENSIS) ROOT/(CNIDIUM OFFICINALE/COPTIS CHINENSIS) RHIZOME/GARDENIA JASMINOIDES FRUIT/PHELLODENDRON CHINENSE BARK EXTRACT
Good Similar safety
(ANGELICA GIGAS/GLYCYRRHIZA URALENSIS/REHMANNIA GLUTINOSA ROOT)/ANGELICA GIGAS STEM/CARTHAMUS TINCTORIUS FLOWER/(CARTHAMUS TINCTORIUS/PRUNUS PERSICA SEED)PORIA COCOS WATER
Good Similar safety
Humectant, Skin Conditioning, Skin Pr...
(ANGELICA KEISKEI/CHRYSANTHEMUM ZAWADSKII) LEAF/STEM/CINNAMOMUM CASSIA BARK/TRICHOSANTES KIRILOWII FRUIT/ULMUS DAVIDIANA BARK/ROOT/(PAEONIA JAPONICA/BUPLEURUM FALCATUM/POLYGALA TENUIFOLIA ROOT)/VISCUS ALBUM STEM EXTRACT
Good Similar safety
Anti-seborrheic, Anti-sebum, Antioxid...
(APPLE/CITRUS JUNOS/LENTIL/PEAR/PUMPKIN/STRAWBERRY/TOMATO FRUIT)/CORN KERNEL/(ARCTIUM LAPPA/BRASSICA OLERACEA ACEPHALA/CABBAGE/CAMELLIA SINENSIS/MORINGA OLEIFERA/RADISH/SPINACH LEAF)/(SORGHUM BICOLOR LEAF/STEM)/OAT MEAL/POTATO PULP/(CARROT/NELUMBO NUCIFERA/RADISH/WILD YAM ROOT)/(AMARANTHUS HYPOCHONDRIACUS/CASHEW/CICER ARIETINUM/COIX LACRYMA-JOBI MA-YUEN /MACADAMIA TERNIFOLIA/PHASEOLUS ANGULARIS/PISTACIA VERA/RHYNCHOSIA NULUBILIS/RICE/SESAME/SETARIA ITALICA/SOYBEAN/SWEET ALMOND/WHEAT SEED)/HORDEUM VULGARE SPROUT/CYPERUS ESCULENTUS TUBER/ARTEMISIA PRINCEPS/BROCCOLI/CHENOPODIUM QUINOA/ENTEROMORPHA COMPRESSA/HORDEUM VULGARE/IPOMOEA BATATAS/LAMINARIA JAPONICA/LENTINUS EDODES/PLEUROTUS OSTREATUS/PORPHYRA TENERA/UNDARIA PINNATIFIDA EXTRACT
Good Similar safety
Antioxidant
2-m-Cresylethanol
Good Chemical family
Fragrance (perfuming)
A-Camphorene
Good Chemical family
Perfuming
Ammonium Trichloroacetate
Poor Chemical family
Keratolytic / peeling agent

Is Alpha-Methyl-Alpha-Vinyl-Benzenepropanenitrile 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 Alpha-Methyl-Alpha-Vinyl-Benzenepropanenitrile in your formulation.