Product Introduction
Isopropenyl Acetate (CAS 108-22-5) is an organic compound classified as an enol acetate. It is a colorless, volatile liquid with a sharp, ester-like odor. In industrial chemistry, it is highly valued as a selective and mild acetylating agent. Unlike stronger reagents, it allows for the acetylation of sensitive molecules without causing undesired side reactions. It is a fundamental building block in the production of fine chemicals, including vitamins, steroid drugs, and aromatic esters used in the flavor and fragrance industry.
Product Selling Points
1. Highly Selective Acetylating Agent
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Advantage: Reacts specifically with alcohols and ketones under mild catalytic conditions.
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Benefit: Process Efficiency: Reduces the formation of unwanted byproducts, simplifying the purification process and increasing the overall yield of high-value intermediates.
2. Optimal Volatility and Recovery
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Advantage: Features a moderate boiling point (97°C) and low residual toxicity.
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Benefit: High Product Purity: Easy to remove from the reaction mixture via distillation, ensuring the final synthesized product meets strict pharmaceutical or fragrance standards.
3. Superior Enol Acetate Reactivity
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Advantage: Acts as a precursor for isopropenyl groups and specialized enolates.
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Benefit: Versatile Application: Enables the synthesis of complex molecules such as Vitamin A and steroid hormones, providing a reliable pathway for high-end chemical manufacturing.
Applications
Pharmaceutical Synthesis
Used as a critical reagent for the acetylation of steroid hormones, vitamins (specifically Vitamin A), and other complex drug intermediates.
Fragrance & Flavor Industry
Serves as a precursor for synthesizing various acetate esters that provide fruity and floral notes in high-end perfumes and food flavors.
Chemical Intermediates
Utilized in the production of acetylacetone and other specialized organic compounds through enol exchange reactions.
Polymer Additive
Applied in certain specialized resin formulations to modify the properties of plastic materials and coatings.
Packaging & Storage
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Packaging: 190kg UN-certified steel drums; ISO tanks for bulk delivery.
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Storage: Store in a cool, dry, and well-ventilated fireproof area. Crucial: Keep away from heat, sparks, and open flames. Isopropenyl Acetate is moisture-sensitive and can slowly hydrolyze; containers must be tightly sealed and stored under an inert atmosphere (nitrogen) for long-term stability.
Synonyms
1-Acetoxy-1-methylethylene; Isopropenyl ethanoate; Acetic acid isopropenyl ester; 2-Acetoxypropene.
Matching Materials
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Acetone (CAS 67-64-1) —— Primary raw material for Isopropenyl Acetate production
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Acetic Anhydride (CAS 108-24-7) —— Acetylating reactant used in the synthesis process
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p-Toluenesulfonic Acid (p-TSA) (CAS 104-15-4) —— Common acid catalyst for acetylation reactions
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Vitamin A (CAS 68-26-8) —— Target product where Isopropenyl Acetate acts as an intermediate
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Steroid Intermediates —— Classes of molecules often modified using Isopropenyl Acetate
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Sulfuric Acid (CAS 7664-93-9) —— Occasional catalyst for esterification and enolization
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Methanol (CAS 67-56-1) —— Solvent used in specific synthesis or cleaning applications
FAQ
Q: Why is Isopropenyl Acetate preferred over Acetic Anhydride in some reactions?
A: It is a milder and more selective reagent. It is particularly useful for acetylating tertiary alcohols and ketones where stronger reagents might cause degradation or low yields.
Q: Is Isopropenyl Acetate stable during long-term storage?
A: It is relatively stable if kept dry. However, exposure to moisture will cause it to hydrolyze back into acetone and acetic acid. Nitrogen padding is highly recommended.
Q: What is the primary hazard of this product?
A: It is highly flammable (Class 3) and can form explosive mixtures with air. It should always be handled in explosion-proof environments with proper grounding.
Q: Can it be shipped by sea in high-temperature regions?
A: Yes, provided it is in UN-certified drums and stored away from heat sources. We monitor temperature conditions for long-haul tropical shipments.
Q: Does it have a strong odor?
A: Yes, it has a sharp, characteristic ester odor. Proper local exhaust ventilation (LEV) is necessary when handling the liquid in a laboratory or factory setting.
