Undecanal Aldehyde C 11 Undecylic Aldehyde | CAS 112 44 7

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High purity Undecanal for fine fragrance compounding, flavor formulation, and specialty aldehyde synthesis applications.

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Specification

Purity by GC: 97.0 percent minimum, typical batch 98.0 to 99.0 percent
Appearance: Colorless to pale yellow clear liquid
Odor: Sweet, fatty, floral aldehydic odor with waxy soapy citrus green and fresh laundry nuances
Molecular formula: C11H22O
Molecular weight: 170.29 g per mol
Density at 25 deg C: 0.825 to 0.832 g per mL
Refractive index nD20: 1.430 to 1.435
Melting point: -2 deg C
Boiling point: 223 deg C at 760 mmHg; 109 to 115 deg C at 5 mmHg
Flash point: 105 deg C (221 deg F)
Acid value: 10.0 mg KOH per g maximum
Vapor density: 5.94 (vs air)
Vapor pressure: 38 Pa at 20 deg C
Solubility: Soluble in most fixed oils, propylene glycol, and alcohol; insoluble in glycerol and water
logP: 4.63 to 4.80
Shelf life: 24 months when stored at 2 to 8 deg C under inert atmosphere
Stock Status: In Stock in US warehouse and China hub

Available Quantity and Lead Time

Regular supply: 1 kg to 20 metric tons per shipment
Lead time: 3 to 5 days for standard packaging; bulk orders require 7 to 10 days

Document Support

COA SDS HPLC chromatogram NMR spectrum Mass spectrum MS available upon request

Application

Undecanal, also known as Aldehyde C 11 Undecylic, is a naturally occurring eleven carbon saturated aldehyde found in citrus oils such as sweet orange, lemon, and grapefruit. It is among the most commonly used aldehydes for creating the classic aldehydic effect in perfumery.

In the flavor and fragrance industry, undecanal is a key ingredient in perfumes, cosmetics, soaps, and detergents. At low concentrations (typically below 0.5 percent), it imparts rich natural floral effects to rose, tuberose, cassie, orange blossom, jasmine, and iris accords. It also serves as a top note component in citrus, fruity, and fantasy type fragrances. In flavor applications, undecanal is FEMA GRAS (No. 3092) and JECFA approved (No. 107), contributing waxy, aldehydic, and soapy taste notes with a citrus nuance. It is widely used in citrus flavored beverages, confectionery, and baked goods.

In cosmetics formulation, undecanal is incorporated into skincare products for its emollient properties, helping improve texture and moisture retention in lotions and creams. In biochemical research, it serves as a model compound in studies of lipid metabolism and fatty acid synthesis. Additionally, undecanal is studied for its role in insect pheromones, with potential applications in environmentally friendly pest control. Undecanal was also used as a component in the iconic Chanel No. 5 fragrance.

Custom Synthesis Support

We offer custom synthesis for undecanal derivatives including deuterated analogs, high purity grades (99.0 percent plus), and specialty formulations. Share your technical datasheet for feasibility review.

Packaging and Shipping

Available in 1 L, 5 L, 20 L, 200 L steel drums or IBC totes. Custom packaging such as amber glass bottles with PTFE lined caps under nitrogen purge is supported. Fastest dispatch within 7 days after order confirmation. Undecanal is air sensitive and tends to polymerize unless tightly sealed. Store under inert atmosphere (nitrogen or argon) at 2 to 8 deg C. Protect from light and moisture. Combustible liquid; keep away from oxidizing agents, reducing agents, and bases.

Why XinChem

XinChem provides undecanal with strict control of purity, acid value, and odor profile for US customers. Our ISO 9001 certified facility monitors every batch by GC and sensory evaluation, ensuring consistent quality for fragrance and flavor applications. We maintain a buffer stock in US warehouses for emergency deliveries within 48 hours. Each order includes a full documentation package: COA, SDS, and chromatograms accessible through our online portal. Our technical support team assists with handling under inert atmosphere, stability optimization, and regulatory compliance including TSCA, EINECS (203-972-6), FEMA GRAS (No. 3092), and JECFA (No. 107). For contract customers, we offer quarterly price locks and consignment inventory to reduce supply chain risk. Trusted by numerous fragrance houses, flavor companies, and research institutions in North America. We also provide free sample evaluation for qualified R&D projects and a price match guarantee against any valid competitor quote for equivalent quality. All shipments are packaged under nitrogen to prevent oxidation and preserve olfactory quality.

FAQ

Q1 How should undecanal be stored to maintain its quality?
A Store under inert atmosphere (nitrogen or argon) in a cool, dark place at 2 to 8 deg C. Protect from light and moisture. Keep container tightly sealed to prevent polymerization and oxidation. Shelf life is 24 months under recommended conditions.

Q2 What purity grades do you supply?
A Standard grade is 97.0 percent minimum by GC. We also supply 98.0 percent and 99.0 percent grades for premium fragrance, pharmaceutical intermediate, and analytical reference standard applications.

Q3 Is undecanal soluble in water?
A Undecanal is insoluble in water. It is soluble in most fixed oils, propylene glycol, alcohol, and most common organic solvents.

Q4 Do you provide sample quantities for fragrance development?
A Yes, free samples are available for qualified US companies. Shipping fee applies for small quantities.

Q5 What are the common impurities in undecanal and how do you control them?
A The primary impurity is 2-methyldecanal, typically present at 3 to 8 percent. Acid value is controlled below 10.0 mg KOH per g. Full impurity profiling is provided per batch.

Q6 Can undecanal be used as a flavoring agent in food products?
A Yes, undecanal is FEMA GRAS (No. 3092) and JECFA approved (No. 107) for use as a flavoring agent. Please request our regulatory package for your specific application and compliance documentation.