3-Methyl-3-buten-2-one
- Product Name
- 3-Methyl-3-buten-2-one
- CAS No.
- 814-78-8
- Chemical Name
- 3-Methyl-3-buten-2-one
- Synonyms
- 3-methylbut-3-en-2-one;3-Methyl-3-buten-2-one (stabilized with HQ);Stabilizedwithhq;methylbutenone[qr];CH2=C(CH3)C(=O)CH3;3-Methyl-3-buten-2-on;Methylisopropenylketon;3-Methylene-2-butanone;3-METHYL-3-BUTEN-2-ONE;2-Methyl-1-buten-3-one
- CBNumber
- CB2399238
- Molecular Formula
- C5H8O
- Formula Weight
- 84.12
- MOL File
- 814-78-8.mol
3-Methyl-3-buten-2-one Property
- Melting point:
- -54°C
- Boiling point:
- 98°C
- Density
- 0,86 g/cm3
- refractive index
- 1.4210 to 1.4250
- Flash point:
- 9°C
- storage temp.
- Freezer
- Water Solubility
- Slightly soluble in water
- solubility
- Chloroform (Sparingly), Ethyl Acetate (Slightly), Methanol (Slightly)
- form
- clear liquid
- color
- Colorless to Light yellow
- Odor
- Very pungent; pleasant; sweet.
- Henry's Law Constant
- 9.8×10-2 mol/(m3Pa) at 25℃, Yaws (2003)
- InChI
- 1S/C5H8O/c1-4(2)5(3)6/h1H2,2-3H3
- InChIKey
- ZGHFDIIVVIFNPS-UHFFFAOYSA-N
- SMILES
- CC(=C)C(C)=O
- LogP
- 0.561 (est)
- CAS DataBase Reference
- 814-78-8
- NIST Chemistry Reference
- 3-Buten-2-one, 3-methyl-(814-78-8)
- EPA Substance Registry System
- 3-Buten-2-one, 3-methyl- (814-78-8)
Safety
- Hazard Codes
- F,T+
- Risk Statements
- 11-23/24/25-36/37/38-27-25
- Safety Statements
- 16-29-33-36/37/39-45-28-26
- RIDADR
- UN 1246 (METHYL ISOPROPENYL KETONE, STABILIZED)
- WGK Germany
- WGK 3
- RTECS
- EN0175000
- TSCA
- TSCA listed
- HazardClass
- 3
- PackingGroup
- II
- HS Code
- 29141900
- Storage Class
- 3 - Flammable liquids
- Hazard Classifications
- Acute Tox. 1 Dermal
Acute Tox. 3 Oral
Eye Irrit. 2
Flam. Liq. 2
Skin Irrit. 2
STOT SE 3 - Hazardous Substances Data
- 814-78-8(Hazardous Substances Data)
Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Danger
- Hazard statements
-
H225Highly Flammable liquid and vapour
H301Toxic if swalloed
H315Causes skin irritation
H318Causes serious eye damage
H370Causes damage to organs
H372Causes damage to organs through prolonged or repeated exposure
H412Harmful to aquatic life with long lasting effects
- Precautionary statements
-
P210Keep away from heat/sparks/open flames/hot surfaces. — No smoking.
P233Keep container tightly closed.
P240Ground/bond container and receiving equipment.
P241Use explosion-proof electrical/ventilating/lighting/…/equipment.
P242Use only non-sparking tools.
P243Take precautionary measures against static discharge.
P260Do not breathe dust/fume/gas/mist/vapours/spray.
P262Do not get in eyes, on skin, or on clothing.
P264Wash hands thoroughly after handling.
P264Wash skin thouroughly after handling.
P270Do not eat, drink or smoke when using this product.
P271Use only outdoors or in a well-ventilated area.
P273Avoid release to the environment.
P280Wear protective gloves/protective clothing/eye protection/face protection.
P284Wear respiratory protection.
P303+P361+P353IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.
P332+P313IF SKIN irritation occurs: Get medical advice/attention.
P370+P378In case of fire: Use … for extinction.
P403+P233Store in a well-ventilated place. Keep container tightly closed.
P403+P235Store in a well-ventilated place. Keep cool.
P405Store locked up.
P501Dispose of contents/container to..…
N-Bromosuccinimide Price
- Product number
- CDS000556
- Product name
- 3-Methyl-3-buten-2-one
- Purity
- AldrichCPR
- Packaging
- 1G
- Price
- $93.2
- Updated
- 2026/04/30
- Product number
- M0378
- Product name
- 3-Methyl-3-buten-2-one (stabilized with HQ)
- Purity
- >95.0%(GC)
- Packaging
- 25mL
- Price
- $185
- Updated
- 2026/04/30
- Product number
- 39216
- Product name
- 3-Methyl-3-buten-2-one (Stabilized with HQ)
- Purity
- ≥95%(GC)
- Packaging
- 25ML
- Price
- $395
- Updated
- 2026/05/19
- Product number
- M332855
- Product name
- 3-Methyl-3-buten-2-one(StabilizedinHQ)(~90%)
- Packaging
- 1ml
- Price
- $65
- Updated
- 2021/12/16
- Product number
- 155400
- Product name
- 3-Methyl-3-buten-2-one (stabilized with HQ)
- Packaging
- 5g
- Price
- $70
- Updated
- 2021/12/16
3-Methyl-3-buten-2-one Chemical Properties,Usage,Production
Chemical Properties
Colorless or light yellow transparent liquid
Uses
Plastics.
Definition
ChEBI: 3-Methyl-3-buten-2-one is an olefinic compound. It is functionally related to an acrylic acid.
Production Methods
3-Methyl-3-buten-2-one is produced by acid-catalyzed condensation of 2-butanone with formaldehyde in the liquid phase.
A further possibility is the methylolization of 2-
butanone under alkaline conditions followed by
elimination of water:
General Description
A clear colorless liquid. Flash point of 52°F. Denser than water and insoluble in water. Hence sinks in water. Vapors heavier than air.
Air & Water Reactions
Highly flammable. Insoluble in water.
Reactivity Profile
3-Methyl-3-buten-2-one tends to polymerize; this reaction is mostly suppressed by the inhibitor. Can polymerize if heated or contaminated. If confined in a container when polymerization is initiated, the container may violently rupture [USCG, 1999].
Hazard
Flammable, dangerous fire risk, explosivelimits in air 1.8–9.0%.
Health Hazard
Inhalation causes irritation of nose and throat. Liquid may cause severe damage to eyes, resulting possibly in some permanent impairment of vision; vapor produces tears. If not removed promptly from skin, liquid may cause delayed pain and blistering. Ingestion causes irritation of mouth and stomach.
Fire Hazard
Behavior in Fire: May polymerize and explode.
Chemical Reactivity
Reactivity with Water: No reaction; Reactivity with Common Materials: No reaction; Stability During Transport: Stable; Neutralizing Agents for Acids and Caustics: Not pertinent; Polymerization: Will polymerize in the absence of inhibitor, especially when heated; Inhibitor of Polymerization: Up to 1% hydroquinone.
Safety Profile
Poison by ingestion and skin contact. Moderately toxic by inhalation and intraperitoneal routes. A skin and severe eye irritant. A dangerous fire hazard when exposed to heat or flame. Explosive in the form of vapor when exposed to heat or flame. When heated to decomposition it emits acrid smoke and irritating fumes.
3-Methyl-3-buten-2-one Preparation Products And Raw materials
Raw materials
Preparation Products
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View Lastest Price from 3-Methyl-3-buten-2-one manufacturers
- Product
- 3-Methyl-3-buten-2-one 814-78-8
- Price
- US $0.00-0.00/KG
- Min. Order
- 1KG
- Purity
- 99%
- Supply Ability
- 20 mt
- Release date
- 2024-11-25
- Product
- 3-Methyl-3-buten-2-one 814-78-8
- Price
- US $15.00-10.00/KG
- Min. Order
- 1KG
- Purity
- 99%+ HPLC
- Supply Ability
- Monthly supply of 1 ton
- Release date
- 2021-06-27
- Product
- 3-Methyl-3-buten-2-one 814-78-8
- Price
- US $1.00/KG
- Min. Order
- 1KG
- Purity
- 99%
- Supply Ability
- Customized
- Release date
- 2018-08-09