• 1. Total synthesis of (+)-milbemycin β3
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• 2. Total synthesis of desacetylumuravumbolide, umuravumbolide and their biological evaluation
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• Solvents and Organic Chemicals Organic Compounds Lipids and lipid-like molecules Fatty Acyls Fatty alcohols
• Solvents and Organic Chemicals Organic Compounds Alcohol/Ether
• Other Chemical Reagents

Comprehensive Overview of (E)-hept-2-en-1-ol (CAS No. 33467-76-4): Properties, Applications, and Industry Insights

(E)-hept-2-en-1-ol (CAS No. 33467-76-4) is a naturally occurring unsaturated alcohol with a distinctive green, leafy aroma, making it a valuable ingredient in the flavor and fragrance industries. This compound, also known as trans-2-hepten-1-ol, is widely recognized for its role in creating natural and synthetic olfactory profiles. Its molecular structure features a seven-carbon chain with a double bond at the second position (E-configuration), contributing to its unique chemical reactivity and sensory properties.

In recent years, the demand for sustainable and eco-friendly aroma chemicals has surged, driven by consumer preferences for clean-label products. (E)-hept-2-en-1-ol aligns with this trend, as it can be derived from renewable plant sources or synthesized via green chemistry approaches. Researchers are exploring its potential in biodegradable formulations, addressing concerns about environmental persistence of traditional fragrance compounds.

The compound’s versatility extends to food technology, where it imparts fresh, herbaceous notes to beverages, dairy, and processed foods. A 2023 market analysis highlighted its growing use in plant-based meat alternatives to mimic the aroma of grilled vegetables. Additionally, its low odor threshold (detectable at ~0.1 ppb) makes it ideal for microencapsulation in controlled-release applications, a hot topic in functional fragrance development.

From a technical perspective, 33467-76-4 exhibits moderate polarity (logP ~1.8) and boiling point (~175°C), enabling formulation flexibility in both hydroalcoholic and lipid-based systems. Advanced analytical techniques like GC-Olfactometry have identified it as a key contributor to the "cut grass" odor profile, explaining its prevalence in freshness-boosting household products. Regulatory reviews confirm its GRAS (Generally Recognized As Safe) status for food use, though allergen labeling may apply in certain jurisdictions.

Innovative applications are emerging in agrochemical semiochemicals, where (E)-hept-2-en-1-ol serves as an insect attractant in pheromone traps. This aligns with the global shift toward IPM (Integrated Pest Management) strategies reducing synthetic pesticide use. Furthermore, its antimicrobial properties against select foodborne pathogens are under investigation, potentially expanding its role in active packaging materials.

Quality specifications for CAS 33467-76-4 typically require ≥95% purity (by GC), with strict limits on isomeric impurities that could alter sensory characteristics. Leading manufacturers now employ enzymatic resolution or metathesis catalysis to ensure stereochemical purity, responding to industry demands for chirally pure aroma molecules. Stability studies recommend storage under nitrogen atmosphere to prevent autoxidation of the allylic alcohol moiety.

Market projections suggest 4.2% CAGR growth for aliphatic unsaturated alcohols through 2028, with (E)-hept-2-en-1-ol benefiting from expansion in personal care products emphasizing "outdoor-inspired" scent profiles. Its compatibility with vegan formulations and absence of phthalate concerns position it favorably against traditional plasticizers in cosmetic applications. Ongoing research explores synergistic effects with terpenes like limonene to enhance fragrance longevity.

For analytical chemists, 33467-76-4 presents interesting challenges in stereoselective analysis. Recent HPLC-UV methods using chiral stationary phases can differentiate the E-isomer from its Z-configuration counterpart, crucial for quality control. Mass spectral libraries document characteristic fragments at m/z 55 (base peak) and 83, aiding identification in complex matrices like essential oil blends.

In conclusion, (E)-hept-2-en-1-ol exemplifies how niche aroma chemicals can address multiple contemporary needs—from sustainability mandates to sensory innovation. Its dual role as a flavor modifier and functional ingredient ensures continued relevance across industries, with emerging applications likely to drive further research into this versatile molecule.

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• 928-94-9(cis-2-Hexen-1-ol)
• 74962-98-4(trans-2-Tridecen-1-ol)
• 123551-47-3((2E,13Z)-Octadecadien-1-ol)
• 22104-79-6(2-Nonen-1-ol)
• 28069-72-9(trans,cis-2,6-Nonadien-1-ol)
• 2305-21-7(2-Hexen-1-ol)
• 31502-14-4(cis-2-Nonen-1-ol)
• 928-95-0((E)-Hex-2-en-1-ol)
• 23578-51-0(2,7-Octadienol)