Supplier Product Identification Physical and Chemical Properties First Aid Measures Handling and Storage Hazards Identification Exposure Controls/Personal Protection Fire Fighting Measures Accidental Release Measures Stability and Reactivity Transport Information
Home > 3-Hydroxy-2-methyl-4H-pyran-4-one > 3-Hydroxy-2-methyl-4H-pyran-4-one(118-71-8)

3-Hydroxy-2-methyl-4H-pyran-4-one(118-71-8)

Supplier Product Identification Physical and Chemical Properties First Aid Measures Handling and Storage Hazards Identification Exposure Controls/Personal Protection Fire Fighting Measures Accidental Release Measures Stability and Reactivity Transport Information

Product Identification

Product Name
3-Hydroxy-2-methyl-4H-pyran-4-one
Synonyms
2-Methyl-3-hydroxy-4-pyrone
2-Methyl-3-hydroxypyran-4-one
3-Hydroxy-2-methyl-4H-pyran-4-one
3-Hydroxy-2-methyl-4-pyrone
Larixic acid
Palatone
CAS
118-71-8
Formula
C6H6O3
Molecular Weight
126.11
EINECS
204-271-8
RTECS
UQ1050000
RTECS Class
Drug; Mutagen; Primary Irritant
Merck
13,5735
Beilstein/Gmelin
112169
Beilstein Reference
5-18-01-00114
EC Class
harmful

Physical and Chemical Properties

Appearance
White crystalline powder with a fragrant caramel-butterscotch odor.
Solubility in water
Slightly soluble
Boiling Point
285
Vapor Pressure
0.0003 (25 C)
Density
1.453 g/cm3
pKa/pKb
8.59 (pKa)
Partition Coefficient
1.16
Heat Of Vaporization
60.8 kJ/mol
Usage
Flavoring agent, to impart freshly bakedâ odor and flavor to bread and cakes.

First Aid Measures

Ingestion
Get medical aid. Wash mouth out with water.
Inhalation
Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.
Skin
Get medical aid. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes.
Eyes
Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.

Handling and Storage

Storage
Store in a cool, dry place. Store in a tightly closed container.
Handling
Avoid breathing dust, vapor, mist, or gas. Avoid contact with skin and eyes.

Hazards Identification

Ingestion
Harmful if swallowed.
Inhalation
Causes respiratory tract irritation.
Skin
Causes skin irritation.
Eyes
Causes eye irritation.
EC Risk Phrase
R 22
EC Safety Phrase
S 22 36/37

Exposure Controls/Personal Protection

Personal Protection
Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure.
Respirators
Follow the OSHA respirator regulations found in 29CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary.

Fire Fighting Measures

Flash Point
127
Autoignition
740
Fire Fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. To extinguish fire use water spray, dry chemical, carbon dioxide, or chemical foam.

Accidental Release Measures

Small spills/leaks
Vacuum or sweep up material and place into a suitable disposal container.

Stability and Reactivity

Disposal Code
3
Stability
Stable.
Incompatibilities
Strong oxidizing agents
Decomposition
Carbon monoxide, carbon dioxide.

Transport Information

HS Code
2932 99 95
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