Isobutyl propionate
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- Category :
Organic chemicals and Derivatives/Aroma compounds
- CAS NO : 540-42-1
- EC NO : 208-746-0
- Molecular Formula : C7H14O2
- Main Specifications : 99% min
- Synonyms : 2-Methyl-1-propyl propanoate;2-methylpropyl propanoate;
Package: 25kg，50kg 200kg
Uses : mainly used to prepare fruit essence such as rum, strawberry,
Molecular Structure:
Product description:
What is the chemical of Isobutyl propionate ?
Appearance: Colorless to pale yellow liquid, with fruity aromas of rum and pineapple, and some descriptions also mention ether or sweet fruit aromas.;
Assay：99%min by GC ;
IR Identity: conform to standard ;
HNMR： conform to standard ;
carbon spectrum: conform to standard ;
Water by K. F.:0.5% max or as per the customer’s request ;
Loss on drying:0.5% max. or as per the customer’s request ;
boiling point: At standard atmospheric pressure (760 mmHg), 135.1-137 ° C;
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Purpose:
Edible flavor: According to the Chinese national standard GB 2760-96, it is approved as a permitted edible flavor, which is mainly used to prepare fruit essence such as rum, strawberry, apple, pear, pineapple, banana, etc. The recommended dosage is 4 – 35 mg/kg.
Industrial application: used as paint solvent, essence, spice ingredient and organic synthesis intermediate.
Other: Naturally occurring in grapes, apples, pears, rum, and hop oil
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Synthesis route: Isobutyl propionate is mainly prepared by direct esterification reaction between isobutanol and propionic acid.
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Multiple synthetic routes have been mentioned in public materials, such as:
Synthesized by reacting isobutanol and propionic acid under acidic conditions, with a yield of approximately 86%.
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Using isobutanol to react with another propionic acid derivative (such as propionyl- chloride), the yield can reach 92%
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