Description

2,3,7-Trimethyloctanal is a branched-chain aliphatic aldehyde with a unique, powerful green and citrus-like odor profile. This compound matters as a versatile and high-impact fragrance ingredient, prized for its ability to impart fresh, natural, and diffusive top notes in complex formulations. Perfumers and flavorists in the fragrance, cosmetic, and personal care industries need it to create sophisticated aromas for fine perfumery, air care products, and functional consumer goods.

Application

• Fine Fragrance: A key component in the creation of fresh, green, and citrusy top notes for perfumes, eaux de toilette, and colognes.
• Functional Perfumery: Used in household and industrial products such as laundry detergents, fabric softeners, and all-purpose cleaners to provide a clean, natural scent.
• Personal Care: Incorporated into shampoos, shower gels, soaps, and deodorants for its refreshing and uplifting aromatic qualities.
• Air Care & Home Fragrance: An essential ingredient in diffuser oils, scented candles, and air fresheners for its excellent volatility and pleasant odor.
• Flavor Enhancement: Employed in trace amounts to enhance or modify citrus and green nuances in certain flavor compositions, where regulations permit.
• Aroma Chemical Intermediate: Serves as a valuable building block in the synthesis of more complex fragrance molecules and derivatives.

Basic Information

Product Name	2,3,7-Trimethyloctanal
CAS No.	22418-71-9
Molecular Formula	C11H22O
Molecular Weight	170.29 g/mol
Synonyms	2,3,7-Trimethyloctanal; 2,3,7-Trimethyloctan-1-al; 2,3,7-Trimethyloctanal (Fragrance Grade); Trimethyloctanal; 2,3,7-TMO; 2,3,7-Trimethyloctyl Aldehyde; (2,3,7-Trimethyloctyl)aldehyde
EINECS	Contact for details

Quality Control

Our fragrance-grade 2,3,7-Trimethyloctanal is produced under strict quality management systems to ensure consistent odor profile, purity, and stability. Each batch is analyzed via GC, GC-MS, and IR to verify identity and composition against rigorous internal standards. Certificates of Analysis (COA) detailing purity, specific gravity, refractive index, and organoleptic properties are available upon request to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at 15-25°C. Keep away from heat, sparks, and open flame. Due to its sensitivity to oxidation, it is recommended to store under an inert atmosphere (e.g., nitrogen) for long-term preservation of quality, especially after opening.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Odor	Characteristic green, citrus, powerful
Identification (IR)	Conforms to reference spectrum
Purity (GC)	≥ 97.0%
Specific Gravity (20°C)	0.830 - 0.850
Refractive Index (20°C)	1.430 - 1.440

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