Undecanal

CAS 112-44-7CH3(CH2)9CHOChemical Synthesis

Undecanal (CAS: 112-44-7; Formula: CH3(CH2)9CHO) is an aldehyde with a molecular weight of 170.29 g/mol. This compound exhibits characteristic aldehyde chemistry and is recognised for its presence in natural sources like Rooibos tea and certain citrus fruits. Primarily, it finds application as a sex pheromone in entomological research, specifically for the greater wax moth. It serves as a valuable building block in organic synthesis.

IUPAC: Undecyl aldehyde
Synonyms: Undecyl aldehydeAldehyde C-11 undecylicHendecanaln-Undecanal1-Undecanaln-Undecanal1-Undecanal

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Undecanal (CH3(CH2)9CHO) — chemical structure, CAS 112-44-7; Chemistry, fine chemical supplied by Tech Serve Solutions

AldehydesBuilding BlocksC10-C12Carbonyl CompoundsCell BiologyChemical SynthesisNutrition ResearchOcimum basilicum (Basil)Organic Building Blocks

01 /Applications

Insect Pheromone

Undecanal is utilised as a sex pheromone for the greater wax moth (Galleria mellonella). This specific application is relevant in entomological studies and pest management research.

Organic Synthesis

As a linear aldehyde, undecanal serves as a versatile building block in organic synthesis. Its carbonyl group allows for various reactions, facilitating the construction of more complex molecules.

Fragrance Component

While not explicitly stated in the provided data, aldehydes of this chain length often contribute to fragrance profiles. It is found in trace amounts in some natural essential oils.

02 /Properties

Molecular weight	170.29
Linear formula	CH3(CH2)9CHO
Assay	97%
Boiling point	109-115 °C/5 mmHg(lit.)
Density	0.825 g/mL at 25 °C(lit.)
Refractive index	n20/D 1.4322(lit.)
Vapour density	5.94 (vs air)
Melting point	−2 °C(lit.)
Application	Sex pheromone of the greater wax moth.1

03 /Safety & handling

GHS hazard pictogram: Harmful / irritant (GHS07) — Harmful / irritant

Warning

Hazard statements

H315Causes skin irritation

Protective equipment	Eyeshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter
Flash point	105 °C / 221 °F
Water hazard class (WGK, DE)	1
Hazard codes (EU)	Xi
Risk statements (R)	38

Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.

04 /Identifiers & registry

CAS number

112-44-7

MDL number

MFCD00007016

PubChem substance

24900631

Beilstein registry

1753213

05 /Quality & supply

Documentation

Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.

Supply & logistics

Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.

06 /Frequently asked questions

What is Undecanal used for?

Undecanal is primarily used as a sex pheromone for the greater wax moth and as a building block in organic synthesis. It is also found naturally in plants such as Aspalathus linearis and Citrus aurantium.

What is the CAS number and formula for Undecanal?

The CAS number for Undecanal is 112-44-7, and its linear formula is CH3(CH2)9CHO.

What grade and purity does Tech Serve Solutions supply?

Tech Serve Solutions supplies Undecanal with a minimum assay of 97%. We do not represent this product as USP, BP, EP, or other pharmacopoeia grades unless explicitly stated in the product specifications.

How should Undecanal be handled safely?

Undecanal is classified as an irritant (H315). Safe handling requires appropriate personal protective equipment, including eyeshields, gloves, and suitable respiratory protection. Avoid contact with skin and eyes. Refer to the Safety Data Sheet (SDS) for comprehensive guidance.

How is Undecanal packaged and shipped?

Undecanal is available in various pack sizes suitable for laboratory and industrial use. TSS exports fine chemicals globally, adhering to all relevant shipping and handling regulations.

How can I request a sample or quote for Undecanal?

To request a sample or a formal quotation for Undecanal, please contact our sales department through the website or by phone, providing your specific requirements.