418099

Sigma-Aldrich

Benzaldehyde

purified by redistillation, ≥99.5%

Synonym(s):
Bitter almond
Linear Formula:
C6H5CHO
CAS Number:
Molecular Weight:
106.12
Beilstein/REAXYS Number:
471223
EC Number:
MDL number:
eCl@ss:
39023701
PubChem Substance ID:

Quality Level

vapor density

3.7 (vs air)

vapor pressure

4 mmHg ( 45 °C)

assay

≥99.5%

form

liquid

autoignition temp.

374 °F

purified by

redistillation

expl. lim.

1.4 %, 20 °F

refractive index

n20/D 1.545 (lit.)

pH

5.9 (20 °C)

bp

178-179 °C (lit.)

mp

−26 °C (lit.)

density

1.044 g/cm3 at 20 °C (lit.)

SMILES string

O=Cc1ccccc1

InChI

1S/C7H6O/c8-6-7-4-2-1-3-5-7/h1-6H

InChI key

HUMNYLRZRPPJDN-UHFFFAOYSA-N

Looking for similar products? Visit Product Comparison Guide

Related Categories

General description

Benzaldehyde (bitter-almond oil) is an aromatic compound commonly used in the cosmetics and flavor industries. The natural source of benzaldehyde is amygdalin, a glycoside found in apricots, bitter almonds, apples, cherries etc. Benzaldehyde is commercially produced by liquid phase chlorination and oxidation of toluene. Other methods reported to produce benzaldehyde include oxidation of benzyl alcohol, hydrolysis of benzal chloride and carbonylation of benzene.

Application

Benzaldehyde can be used as a precursor to synthesize:
  • Cinnamaldehyde, cinnamic acid, ethyl cinnamate, benzoic acid, benzyl alcohol, benzyl benzoate and hydrobenzamide etc.
  • Triphenylmethane derivatives by condensation with phenols, aromatic amines, and benzene. This reaction is useful for the production of malachite green dyes.
  • Benzoylborane by reacting with borylmagnesium bromides.
  • Multi-benzaldehyde functionalized poly(ethylene glycol) analog which is used as a cross-linker to develop an injectable hydrogel system.

Packaging

100, 500 mL in Sure/Seal™

Other Notes

Tandem Mass Spectrometry data independently generated by Scripps Center for Metabolomics is available to view or download in PDF. 418099.pdf Tested metabolites are featured on Scripps Center for Metabolomics METLIN Metabolite Database. To learn more, visit sigma.com/metlin.

Pictograms

Exclamation mark

Signal Word

Warning

hazcat

Acute Tox. 4 Inhalation - Acute Tox. 4 Oral - Aquatic Chronic 3 - Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

storage_class_code

10 - Combustible liquids

WGK Germany

WGK 1

Flash Point(F)

145.4 °F

Flash Point(C)

63 °C

Personal Protective Equipment

dust mask type N95 (US),Eyeshields,Gloves

Certificate of Analysis

Certificate of Origin

Synthesis, structure of borylmagnesium, and its reaction with benzaldehyde to form benzoylborane
Yamashita M, et al.
Journal of the American Chemical Society, 129(31), 9570-9571 (2007)
An injectable hydrogel formed by in situ cross-linking of glycol chitosan and multi-benzaldehyde functionalized PEG analogues for cartilage tissue engineering
Cao L, et al.
Journal of materials chemistry. B, 3(7), 1268-1280 (2015)
Highly selective oxidation of benzyl alcohol to benzaldehyde catalyzed by bimetallic gold?copper catalyst
Della Pina C, et al.
J. Catal., 260(2), 384-386 (2008)
Benzaldehyde
Bruhne F and Wright E
Ullmann's Encyclopedia of Industrial Chemistry (2000)
Spacing and site isolation of amine groups in 3-aminopropyl-grafted silica materials: The role of protecting groups.
Hicks JC, et al.
Chemistry of Materials, 18(21), 5022-5032 (2006)

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service