Undecanal (Kosher/Halal)

Basic Information of Undecanal

CAS No.:	112-44-7
EC No.:	203-972-6
Linear Formula:	C11H22O
Molecular Weight:	170.29
Appearance:	Colorless to pale yellow, clear liquid
Odor:	Powerful, waxy, clean, floral-citrus, slightly fatty note
Odor Type:	Aldehydic
Melting Point:	-2 °C (lit.)
Boiling Point:	109-115 °C/5 mmHg (lit.)
Density:	0.825 g/mL at 25 °C (lit.)
Solubility:	Insoluble in water; soluble in ethanol and most organic solvents/oils.
Flash Point:	205 °F
Chemical Structure:

Application Overview

Undecanal is a vital ingredient for creating complex, diffusive fragrance structures and is heavily used in consumer products:

• Fine Fragrance: It is indispensable in Aldehydic Floral compositions and is used to create radiant, diffusive top notes. It provides a unique waxy-fatty/citrus sparkle that is highly recognizable in classic and contemporary perfumes.

• Soap and Detergents: Its excellent stability in alkaline media and high potency makes it a primary choice for scenting laundry powders, liquid detergents, and bar soaps, where it contributes to the perception of 'cleanliness' and freshness.

• Cosmetics and Personal Care: Used to add a clean, subtle base note to products like body lotions, shampoos, and room sprays, ensuring a lasting sense of freshness.

• Floral Accords: It is key to enhancing and creating specific white floral notes like lily-of-the-valley (muguet) and cyclamen, providing a clean, bright, and slightly metallic facet.

• Flavoring: In extremely small, regulated quantities, it can be used to impart certain fatty or citrus notes in confectionery and baked goods (subject to local regulations).

• Enhanced Oxidation Protection: Aldehydes are highly sensitive. We utilize advanced antioxidant and polymerization inhibitor systems specific to Aldehyde C-11 during packaging and storage. This specialized protection goes beyond inert gas, guaranteeing the aldehyde maintains its low acid value and maximum olfactory potency over time.

• Purity Optimized for Clarity: Our Undecanal is guaranteed to have extremely low color and trace metal contamination. This is vital for transparent gels, clear liquids, and fine fragrances, where even minute impurities can lead to batch discoloration over time.

• Dedicated Volatile Chemical Handling: We employ temperature-controlled storage (refrigeration) for this specific aldehyde to minimize the risk of spontaneous polymerization and degradation, ensuring that the delivered product is as pure and active as when it was manufactured.