Benzaldehyde dimethyl acetal Chemical Properties

Melting point:

87-89 C

Boiling point:

87-89 °C/18 mmHg (lit.)

Density 

1.014 g/mL at 25 °C (lit.)

FEMA 

2128 | BENZALDEHYDE DIMETHYL ACETAL

refractive index 

n20/D 1.493(lit.)

Flash point:

157 °F

storage temp. 

Inert atmosphere,2-8°C

form 

Liquid

color 

Clear colorless

Odor

at 100.00 %. green earthy rooty nutty vegetable spinach potato fungal almond winey

Odor Type

green

Water Solubility 

decomposes

Sensitive 

Moisture Sensitive

JECFA Number

837

BRN 

2044501

InChIKey

HEVMDQBCAHEHDY-UHFFFAOYSA-N

LogP

2.24

CAS DataBase Reference

1125-88-8(CAS DataBase Reference)

NIST Chemistry Reference

Benzaldehyde dimethyl acetal(1125-88-8)

EPA Substance Registry System

Benzene, (dimethoxymethyl)- (1125-88-8)

Safety Information

Hazard Codes 

Xn

Risk Statements 

22-36/37/38

Safety Statements 

23-24/25

RTECS 

CU5774000

F 

10-21

TSCA 

Yes

HazardClass 

IRRITANT

HS Code 

29110000

Toxicity

LD50 orally in Rabbit: 1220 mg/kg LD50 dermal Rabbit > 5000 mg/kg

MSDS

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Benzaldehyde dimethyl acetal Usage And Synthesis

Chemical Properties

Clear colorless liquid

Chemical Properties

Benzaldehyde dimethyl acetal has a sweet, floral note; also reminiscent of almond

Occurrence

Reported found in rhubarb and potato.

Uses

Benzaldehyde dimethyl acetal used as an effective reagent for the construction of selenocarbonyl compounds.

Uses

Benzaldehyde dimethyl acetal is suitable for use in the synthesis of 4,6-dihydroxy sugar, required for the total synthesis of Porphyromonas gingivalis 381 derived lipid A. It may be used in the preparation of 1-O-methyl-2,3-di-O-galloyl-β-D-glucose.

Uses

Benzaldehyde dimethyl acetal may be used as an analytical reference standard for the quantification of the analyte in fresh and canned fish and Cinnamomum zeylanicum using gas-chromatography coupled to mass spectrometry (GC-MS).

Definition

ChEBI: (Dimethoxymethyl)benzene is a benzyl ether.

Preparation

From benzaldehyde and methanol in the presence of calcium chloride and HCl; from benzaldehyde and tetramethylorthosilicate in the presence of anhydrous HCl in methanol

Preparation

A mixture of ethylenediamine (1.2 g, 20 mmol), Ph3SbO (1.0 mmol), and P4S10 (2.0 mmol) was autoclaved under a pressure of CO2 (4.9 MPa). Imidazolidinone was isolated by column chromatography (silica gel; eluent: ethyl acetate/hexane, 1:1, v/v); yield 1.5 g (85%).

Taste threshold values

Taste characteristics at 25 ppm: green, nutty, brown and sweet

General Description

The abstraction of α-hydrogen atoms from benzaldehyde dimethyl acetal by active bromine at 80°C has been investigated.

Safety Profile

Moderately toxic by ingestion. A skin irritant. When heated to decomposition it emits acrid smoke and irritating fumes.

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