FEMA 2129

FEMA 2129 Structure
CAS No.
1319-88-6
Chemical Name:
FEMA 2129
Synonyms
BGA*;FEMA 2129;Benzalglycerin;BENZAL GLYCERYL ACETAL;Benzyl glyceryl acetal;Benzaldehyde glycrol acetal;BENZALDEHYDE GLYCERYL ACETAL;5-Hydroxy-2-phenyl-1,3-dioxan;2-PHENYL-1,3-DIOXOLANE-4-METHANOL;Benzaldehyde glycerol cyclic acetal
CBNumber:
CB9744329
Molecular Formula:
C10H12O3
Molecular Weight:
180.2
MOL File:
1319-88-6.mol
MSDS File:
SDS
Modify Date:
2024/6/5 17:30:15

FEMA 2129 Properties

Boiling point 152-154 °C(Press: 12 Torr)
Density 1.2115 g/cm3(Temp: 25 °C)
FEMA 2129 | BENZALDEHYDE GLYCERYL ACETAL
color A colourless viscous liquid.
Odor at 100.00 %. cherry bitter almond sweet
Odor Type fruity
JECFA Number 838
LogP 1.98
EPA Substance Registry System Benzaldehyde, cyclic acetal with 1,2,3-propanetriol (1319-88-6)

SAFETY

Risk and Safety Statements

Symbol(GHS) 
GHS07
Signal word  Warning
Hazard statements  H302
Precautionary statements  P264-P270-P301+P312-P330-P501
Toxicity The acute oral LD50 value in rats was reported as 3?5 ml/kg (2.42-4.09 ml/kg) and the acute dermal LD50 value in rabbits as 5 ml/kg

FEMA 2129 Chemical Properties,Uses,Production

Occurrence

Has apparently not been reported to occur in nature

Preparation

The α, α?- and α, β-isomers are obtained in mixture by heating glycerol and benzaldehyde to 145 to 170°C under a stream of CO2; the isomers are subsequently isolated, exploiting the solubility differences; the α, α?-isomer is readily converted to the α, β-form by heating in the presence of HCl.

Production Methods

Benzaldehyde glycrol acetal can be produced from Benzaldehyde and Glycerin by condensation, using Phosphoric acid as a catalyst, and making use of azeotropic distillation to remove reaction water. Also by heating Glycerol and Benzaldehyde in CO2 atmosphere to 150°C. The 1,3-isomer is crystallizable and may be separated.

FEMA 2129 Preparation Products And Raw materials

Raw materials

Preparation Products

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Benzaldehyde,cyclicacetalwith1,2,3-propanetriol BENZAL GLYCERYL ACETAL BENZALDEHYDE GLYCERYL ACETAL FEMA 2129 Benzyl glyceryl acetal 5-Hydroxy-2-phenyl-1,3-dioxan Benzalglycerin Benzaldehyde glycrol acetal 2-PHENYL-1,3-DIOXOLANE-4-METHANOL Benzaldehyde glycerol cyclic acetal BGA* 1319-88-6