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Isobutyl Isobutyrate (IBIB) is a colorless liquid with a pleasant fruity odor. It is moderately toxic by inhalation and is insoluble in water, but it is soluble in alcohols and ethers. Naturally found in fruits and essential oils, IBIB has various industrial applications. Primarily, IBIB is used as a solvent in nitrocellulose lacquers, coatings for plastic substrates, and high-solids coatings. It is an economical retarder solvent, ideal for applications requiring slow evaporation, good flow, and leveling characteristics, as well as blush resistance. IBIB is widely used in automotive, industrial, wood furniture, and graphic arts coatings. Its low surface tension makes it valuable for applications requiring improved substrate wetting. Additionally, IBIB’s low water miscibility makes it an excellent retarder solvent for moisture-sensitive coatings such as 2-K polyurethanes. With its high electrical resistance, IBIB is useful in adjusting the resistivity of coatings applied using electrostatic spray equipment.
Chemical Name
Isobutyl Isobutyrate (IBIB)
CAS #
97-85-8
EC #
202-612-5
Molecular Formula
C8H16O2
InChI Key
RXGUIWHIADMCFC-UHFFFAOYSA-N
Synonyms
Propanoic acid, 2-methyl-, 2-methylpropyl ester; Isobutyric acid, isobutyl ester: Isobutyl isobutyrate: 2-Methylpropyl isobutyrate; 2-Methylpropyl 2-methylpropanoate; 2-Methylpropyl 2-methylpropionate; 2-Methylpropionic acid isobutyl ester; Isobutyl isobutanoate; NSC 6538
Product Group 1
Solvents, AdditivesProduct Group 2
Construction, Lubricants & Greases, Pharma, Food & Nutrition, HI&I, CASE, Personal Care, Plastic & Rubber, Oil & Gas148.6 °C
0.8750 g/cm³ at 0 °C
-80.66 °C
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The CAS registry number for Isobutyl Isobutyrate (IBIB) is 97-85-8.
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