Substance
ID:736536
Names and Identifiers
IUPAC name
4-hydroxy-6-methyl-2H-pyran-2-one
IUPAC Traditional name
triacetic acid lactone
Synonyms
4-羟基-6-甲基-2-吡喃酮4-Hydroxy-6-methyl-2-pyrone3,5-Dihydroxysorbic acid delta-lactone
Registration numbers
EC Number
CAS Number
MDL Number
Beilstein Number
Properties
Safety Information
European Hazard Symbols
Irritant (Xi)Safety Statements
26-37
Risk Statements
36/37/38
GHS Pictograms
Acute toxicity (oral, dermal, inhalation), category 4
Skin irritation, category 2
Eye irritation, category 2
Skin sensitisation, category 1
Specific Target Organ Toxicity – Single exposure, category 3
GHS Hazard statements
H315-H319-H335
TSCA Listed
是
RTECS
UQ1000000
GHS Precautionary statements
P261-P305+P351+P338-P302+P352-P321-P405-P501A
Product Information
Purity
98%
Physical Property
Melting Point
ca 186°C dec.
Molecule Details
No Data Available
Click here to submit data
Molecular Spectra
No Data Available
Click here to submit data
References
• Can participate in annulation reactions, due to the relatively high acidity of the C-H bond at the 3-position: a three-component reaction with isocyanides and dialkyl acetylene dicarboxylates affords annulated 4H-pyrans: Tetrahedron, 62, 3016 (2006). For reaction scheme, see: tert-Butyl isocyanide, L19747.