Mesityl oxide, 99%, mixture of alpha- and beta-isomers, Thermo Scientific Chemicals

Product Code	Brand	Quantity	Packaging
10356860	Thermo Scientific Acros 125600010	1 L	Glass Bottle
10366860	Thermo Scientific Acros 125600025	2.5 L	Glass Bottle
11904821	Thermo Scientific Acros 125600100	10 L	Plastic drum

Description

This Thermo Scientific Chemicals brand product was originally part of the Acros Organics product portfolio. Some documentation and label information may refer to the legacy brand. The original Acros Organics product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

Chemical Identifiers

• CAS: 141-79-7
• Molecular Weight (g/mol): 98.14
• Synonym: mesityl oxide, 4-methyl-3-penten-2-one, 3-penten-2-one, 4-methyl, isopropylideneacetone, isobutenyl methyl ketone, methyl isobutenyl ketone, mesityloxid, mesityloxyde, 3-isohexen-2-one, isopropylidene acetone
• IUPAC Name: 4-methylpent-3-en-2-one

• Molecular Formula: C₆H₁₀O
• InChI Key: SHOJXDKTYKFBRD-UHFFFAOYSA-N
• PubChem CID: 8858
• SMILES: CC(=CC(=O)C)C

Specifications

• CAS: 141-79-7
• Density: 0.8540g/mL
• Flash Point: 28°C
• Assay Percent Range: 90% alpha-Isomer (GC)
• Linear Formula: (CH₃)₂C=CHCOCH₃
• Beilstein: 01,736
• Specific Gravity: 0.854
• Solubility Information: Solubility in water: 28g/L (20°C). Other solubilities: miscible with most common organic solvents
• SMILES: CC(=CC(=O)C)C
• Molecular Weight (g/mol): 98.14
• Viscosity: 0.64 mPa.s (20°C)
• Percent Purity: 99%
• Chemical Name or Material: Mesityl oxide

• Melting Point: -53°C
• Boiling Point: 129°C
• Infrared Spectrum: Authentic
• Molecular Formula: C₆H₁₀O
• Refractive Index: 1.4420 to 1.446
• Merck Index: 15,5978
• Synonym: mesityl oxide, 4-methyl-3-penten-2-one, 3-penten-2-one, 4-methyl, isopropylideneacetone, isobutenyl methyl ketone, methyl isobutenyl ketone, mesityloxid, mesityloxyde, 3-isohexen-2-one, isopropylidene acetone
• InChI Key: SHOJXDKTYKFBRD-UHFFFAOYSA-N
• IUPAC Name: 4-methylpent-3-en-2-one
• PubChem CID: 8858
• Formula Weight: 98.14
• Physical Form: Liquid

Safety and Handling

GHS Signal Word: Warning

missing translation for 'einecsNumber' : 205-502-5

Recommended Storage : Product may darken during storage

Product Identifier

• Mesityl oxide

Signal Word

• Warning

Hazard Category

• Flammable liquid Category 3
• Acute toxicity Category 4

Hazard Statement

• H226-Flammable liquid and vapour.
• H302-Harmful if swallowed.
• H312-Harmful in contact with skin.
• H332-Harmful if inhaled.

Precautionary Statement

• P210-Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
• P280-Wear protective gloves/protective clothing/eye protection/face protection.
• P301+P330+P331-IF SWALLOWED: rinse mouth. Do NOT induce vomiting.
• P302+P352-IF ON SKIN: Wash with plenty of water/soap.
• P304+P340-IF INHALED: Remove person to fresh air and keep comfortable for breathing.
• P312-Call a POISON CENTER/doctor/if you feel unwell.

RUO – Research Use Only