Description

Isobutyl Propionate CAS NO 540-42-1 is a clear, colorless ester with a characteristic fruity odor. This compound is valued as a versatile solvent and flavor/fragrance intermediate due to its favorable evaporation rate and solvency power. It is primarily needed by manufacturers in the coatings, printing inks, and specialty chemical industries, as well as by producers of artificial flavors and fragrances.

Application

• Solvent for Coatings and Inks: An effective solvent for cellulose esters, acrylics, and vinyl resins, contributing to fast-drying formulations in paints, lacquers, and printing inks.
• Flavor and Fragrance Ingredient: Used as a synthetic flavoring agent in food products and as a fragrance component in perfumes, soaps, and cosmetics for its fruity, rum-like aroma.
• Chemical Intermediate: Serves as a building block in organic synthesis for the production of other esters and specialty chemicals.
• Cleaning and Degreasing Formulations: Employed in industrial cleaning solutions and degreasers for its ability to dissolve oils and greases.
• Plasticizer and Additive: Acts as a processing aid or temporary plasticizer in polymer and resin production.
• Adhesive Formulations: Used as a solvent component in certain adhesive systems to adjust viscosity and drying time.

Basic Information

Product Name	Isobutyl Propionate
CAS No.	540-42-1
Molecular Formula	C7H14O2
Molecular Weight	130.18 g/mol
Synonyms	Propanoic acid, 2-methylpropyl ester; 2-Methylpropyl propionate; Isobutyl propanoate; Isobutyl propionate; NSC 8444; FEMA No. 2212; Butyl propionate (isomeric mixture)
EINECS	208-746-0

Quality Control

Our Isobutyl Propionate is produced under strict quality management systems. Each batch undergoes comprehensive analytical testing, including Gas Chromatography (GC) for purity and identity confirmation, to ensure it meets the required specifications for industrial and specialty use. Certificates of Analysis (COA) documenting purity, physical properties, and other relevant parameters are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, well-ventilated area away from heat sources, ignition points, and incompatible materials such as strong oxidizing agents, acids, and bases. Due to its highly volatile nature, keep containers tightly sealed when not in use. Recommended storage temperature is 15-25°C.

Specification

Item	Specification
Appearance	Clear, colorless liquid
Identification (IR)	Conforms
Assay (GC)	≥ 98.0%
Refractive Index (20°C)	1.395 - 1.401
Specific Gravity (20/20°C)	0.862 - 0.868
Acidity (as Propionic Acid)	≤ 0.05%
Water Content (KF)	≤ 0.1%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.