Mesityl oxide, puriss 99%+

Name: Mesityl oxide, puriss 99%+
Brand: Vaqora Chemicals
SKU: VQ-008138

About Mesityl oxide, puriss 99%+

Listed under CAS 141-79-7, Mesityl oxide is a carbonyl building block available from Vaqora Chemicals in Puriss grade at a purity of ≥99%. The compound has the formula C6H10O, corresponding to a molecular weight of 98.14 g/mol. Systematically, it is named 4-methylpent-3-en-2-one. Alternative names: 4-Methyl-3-penten-2-one and Isopropylideneacetone.

In its supplied form it is a clear colourless liquid. Key physical data: a melting point of -41.5 °C. Keep containers tightly closed in a cool, well-ventilated area away from heat and ignition sources. The GHS classification uses the signal word “Warning”, so appropriate gloves, eye protection and ventilation are recommended.

It is commonly used for organic synthesis, condensation and reductive amination, API intermediates and molecular biology workflows. It is used across pharmaceutical manufacturing and academic and industrial research.

Available in 1 L and 180 kg packs, Mesityl oxide is dispatched with a Certificate of Analysis (COA) to destinations worldwide.

Typical applications

Organic synthesis
Condensation & reductive amination
API intermediates
Molecular biology workflows

Industries

Specifications & identifiers

Chemical identifiers
Product name	Mesityl oxide, puriss 99%+
Catalogue No.	VQ-008138
CAS Number	141-79-7
IUPAC name	4-methylpent-3-en-2-one
Molecular formula	C₆H₁₀O
Molecular weight	98.14 g/mol
Exact mass	98.0732
Grade	Puriss
Purity / assay	≥99%
HSN code	29141990
InChIKey	SHOJXDKTYKFBRD-UHFFFAOYSA-N
SMILES	CC(=CC(=O)C)C
PubChem CID	8858

Physical properties
Physical form	Liquid
Appearance	Clear colourless liquid
Melting point	-41.5 °C
LogP (XLogP3)	1.4
H-bond donors / acceptors	0 / 1
TPSA	17.1 Å²
UN number	UN 1229
Synonyms	4-Methyl-3-penten-2-one, Isopropylideneacetone, Methyl isobutenyl ketone, 3-Penten-2-one, 4-methyl-, Isobutenyl methyl ketone, Ossido di mesitile, 3-Isohexen-2-one, Oxyde de mesityle, Methyl 2-methyl-1-propenyl ketone, Acetone, isopropylidene-, Methyl 2,2-dimethylvinyl ketone, 2-Methyl-4-oxo-2-pentene

Safety & hazard information (GHS)

Flammable

Harmful / irritant

Signal word: Warning

Hazard statements

H226Flammable liquid and vapor
H302Harmful if swallowed
H312Harmful in contact with skin
H332Harmful if inhaled

Precautionary statements: P210, P233, P240, P241, P242, P243, P261, P264, P270, P271, P280, P301 + P317, P302 + P352, P303 + P361 + P353, P304 + P340, P317, P321, P330, P362 + P364, P370 + P378, P403 + P235, P501

Classification is indicative (aggregated GHS notifications) and may vary by grade and concentration. Always refer to the SDS supplied with your lot.

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Other grades of CAS 141-79-7

Synthesis

Mesityl oxide, 98%

CAS: 141-79-7
Formula: C₆H₁₀O
MW: 98.14 g/mol

VQ-008137

Frequently asked questions

What is the CAS number of Mesityl oxide, puriss 99%+?

The CAS Registry Number of Mesityl oxide, puriss 99%+ is 141-79-7. It is also known as 4-Methyl-3-penten-2-one, Isopropylideneacetone, Methyl isobutenyl ketone.

What is the molecular formula and molecular weight of Mesityl oxide, puriss 99%+?

Mesityl oxide, puriss 99%+ has the molecular formula C6H10O and a molecular weight of 98.14 g/mol. Its IUPAC name is 4-methylpent-3-en-2-one.

Which grade and pack sizes of Mesityl oxide, puriss 99%+ can I order?

We supply Mesityl oxide, puriss 99%+ in Puriss (≥99%) grade, in 1 L, 180 kg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Mesityl oxide, puriss 99%+?

Yes. Every lot of Mesityl oxide, puriss 99%+ is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can Mesityl oxide, puriss 99%+ be shipped internationally?

Yes. Mesityl oxide, puriss 99%+ is classified as hazardous (UN 1229), so it is packed in UN-approved packaging and shipped as dangerous goods under IATA/IMDG rules. We export worldwide on EXW, FOB, CIF and DAP terms.