Description

(7E,9E)-β-Ionylidene Acetaldehyde is a high-value fragrance and flavor intermediate, a key building block in the synthesis of carotenoids and vitamin A derivatives. Its unique conjugated aldehyde structure provides the foundational note for creating complex, natural-identical aroma profiles. This compound is essential for manufacturers in the fragrance, flavor, and fine chemical industries seeking to produce sophisticated, high-end organoleptic products.

Application

• Fragrance Industry: A crucial intermediate for synthesizing ionones, irones, and other macrocyclic musks, imparting woody, floral, and violet-like notes.
• Flavor Industry: Used in the production of natural-identical flavoring agents, particularly for fruit and berry flavor profiles.
• Pharmaceutical Synthesis: Serves as a key precursor in the synthesis of retinoids (Vitamin A analogs) and carotenoid pigments.
• Fine Chemical Production: Acts as a versatile building block for complex organic synthesis, including dyes and specialty polymers.
• Cosmetic Ingredients: Employed in the manufacture of specialty cosmetic actives and colorants derived from carotenoid pathways.
• Research & Development: Used as a standard or intermediate in academic and industrial R&D for organic and medicinal chemistry projects.

Basic Information

Product Name	(7E,9E)-β-Ionylidene Acetaldehyde
CAS No.	3917-41-7
Molecular Formula	C13H18O
Molecular Weight	190.28 g/mol
Synonyms	β-Ionylideneacetaldehyde; (E,E)-β-Ionylideneacetaldehyde; 2,6,6-Trimethyl-1-(3-oxobut-1-en-1-yl)cyclohex-1-ene; Pseudoionone; ψ-Ionone; 6,10-Dimethylundeca-3,5,9-trien-2-one (related isomer); Dehydro-β-ionone precursor; Carotenoid intermediate
EINECS	223-481-7

Quality Control

Our (7E,9E)-β-Ionylidene Acetaldehyde is produced under strict quality management systems. Each batch is analyzed to ensure high chemical purity and isomeric consistency, critical for reproducible performance in fragrance and synthesis applications. Certificates of Analysis (COA) detailing purity, isomer ratio, and impurity profiles are provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at 2-8°C under an inert atmosphere (e.g., nitrogen or argon) to prevent oxidation. Keep away from heat, sparks, and open flames. For long-term storage, consider freezing at -20°C.

Specification

Item	Specification
Appearance	Clear, pale yellow to yellow liquid
Identification (IR)	Conforms to reference spectrum
Assay (GC)	≥ 95.0%
Isomeric Purity ((E,E)-Isomer)	≥ 90.0%
Refractive Index (n20D)	1.530 - 1.540
Specific Gravity (20/4°C)	0.900 - 0.920

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