methacrolein dimer

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2,3-dihydro-2,5-dimethyl-2-formyl-1,4-pyran

CAS: 1920-21-4 C8 H12 O2 MW: 140.18204000
All Ingredients Aromatic Ingredients CAS Numbers EINECS Numbers Found in Nature M.W Index

Identification

Namemethacrolein dimer
IUPAC2,5-dimethyl-3,4-dihydropyran-2-carbaldehyde
CAS Number1920-21-4
EINECS217-647-1
FDA UNIISearch
Molecular FormulaC8 H12 O2
Molecular Weight140.18204000
Nikkaji NumberJ24.830D
Beilstein0114546

Regulatory

Physical Properties

Appearance colorless to pale yellow clear liquid (est)
Assay 95.00 to 100.00
Food Chemicals Codex Listed No
Boiling Point 201.00 to 202.00 °C. @ 760.00 mm Hg (est)
Vapor Pressure 0.308000 mmHg @ 25.00 °C. (est)
Flash Point 165.00 °F. TCC ( 74.10 °C. ) (est)
logP (o/w) 0.408 (est)
Soluble in alcohol
Insoluble in water

No sensory data available

Safety Information

Oral/Parenteral Toxicityoral-rat LD50 2460 mg/kg
Dermal ToxicityNot determined
Inhalation ToxicityNot determined

GHS Classification

['GHS Classification in accordance with 29 CFR 1910 (OSHA HCS)', 'GHS Label elements, including precautionary statements']

Safety in Use

Categorynatural substances and extractives
Recommendation for methacrolein dimer usage levels up tonot for fragrance use.
Recommendation for methacrolein dimer flavor usage levels up tonot for flavor use.

No supplier data available

Potential Uses

None Found

Natural Occurrence

oenothera odorata

Synonyms

2,3- dihydro-2,5-dimethyl-2-formyl-1,4-pyran 3,4- dihydro-2,5-dimethyl-2H-pyran-2-carboxaldehyde 2,5- dimethyl-3,4-dihydropyran-2-carbaldehyde methacrylaldehyde dimer Try the PubMed Search.