5-methyl-2-hexanone

CAS: 110-12-3

Overview

5-Methyl-2-hexanone (CAS 110-12-3 ), commercially known as MIAK or methyl isoamyl ketone, is a mid-chain ketone solvent used across industrial coating and flavoring applications.

Its slow evaporation rate makes it a preferred choice where controlled drying and film formation are required. MIAK also functions as a flavoring agent, contributing fruity, ethereal notes to finished products.

In printing inks and industrial coatings, MIAK acts as a coalescing solvent that improves flow and leveling while extending open time during application. Metalworking and lubricant formulators incorporate it.

It is used as a carrier solvent in cleaning and degreasing compounds where residue-free evaporation is critical. In personal care, it appears in nail care formulations and fragrance compositions.

Food and beverage manufacturers use MIAK as a FEMA -approved flavoring agent to deliver fruity and green top notes in confectionery, baked goods, and beverages for various markets.

MIAK is supplied as a clear liquid in standard drum and IBC packaging suited for industrial volumes. It is available in technical grade for solvent applications and in flavor-grade specifications.

These specifications meet FCC requirements. Purity levels typically range from 98% to 99%+ depending on the intended application grade and the specific needs of the industrial formulator.

Physical Properties

Melting Point	-74 °C
Boiling Point	144 °C
Density	0.888 g/cm³ @ Temp: 20 °C
Flash Point	106 °F
Appearance	MIAK is a colorless liquid with a pleasant, fruity odor.
Color	Clear colorless
Odor	pleasant odor
Form	Liquid
Water Solubility	5.4 g/L (20 ºC)
Vapor Pressure	4.5 mm Hg ( 20 °C)
Refractive Index	n 20/D 1.406(lit.)
Log P	1.88 at 25℃

Safety & Handling

Warning GHS02 GHS07 GHS08 Hazard Statements H226 Flammable liquid and vapor H303 May be harmful if swallowed H305 May be harmful if swallowed and enters airways H320 Causes eye irritation H332 Harmful if inhaled H335 May cause respiratory irritation H336 May cause drowsiness or dizziness H373 May causes damage to organs through prolonged or repeated exposure Precautionary Statements P203 Obtain, consult and follow expert instructions for use. P210 Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking. P233 Keep container tightly closed. P240 Ground and bond container and receiving equipment. P241 Use explosion-proof [electrical/ventilating/lighting/…] equipment. P242 Use non-sparking tools. P243 Take action to prevent static discharges. P260 Do not breathe dust/fume/gas/mist/vapours/spray. P261 Avoid breathing dust/fume/gas/mist/vapours/spray. P271 Use only outdoors or in a well-ventilated area. P280 Wear protective gloves/protective clothing/eye protection/face protection. P317 Get emergency medical help. P318 IF exposed or concerned, get medical advice. P319 Get medical advice/attention if you feel unwell. P331 Do NOT induce vomiting. P405 Store locked up. P501 Dispose of contents/container in accordance with local regulations. P264+P265 Wash … thoroughly after handling. P301+P316 Get emergency medical help immediately. P301+P317 Get emergency medical help. P304+P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing. P337+P317 If eye irritation persists: Get medical advice/attention. Get emergency medical help. P370+P378 Use … for extinction. P403+P233 Store in a well-ventilated place. Keep container tightly closed. P403+P235 Store in a well-ventilated place. Keep cool. P303+P361+P353 IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water/shower. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.

Trade & Regulatory

HS Code	29141910
UN Number	2302
ADR Class	3
Packing Group	III
Storage Class	3 - Flammable liquids
WGK (Germany)	1

Other Names

Industries

Printing & Packaging Lubricants & Metalworking Personal Care & Cosmetics Food & Nutrition