FEMA 2877 Property

Boiling point:

290.2℃[at 101 325 Pa]

Density 

1.159[at 20℃]

vapor pressure 

0.023Pa at 24℃

FEMA 

2877 | PHENYLACETALDEHYDE GLYCERYL ACETAL

solubility 

Practically insoluble in water, soluble in alcohol and oils.

form 

viscous liquid

color 

A colourless viscous liquid.

Odor

at 100.00 %. floral green honey dried rose tea rose leafy powdery petitgrain lavender hyacinth

Odor Type

floral

Water Solubility 

28.841g/L at 24℃

JECFA Number

1004

LogP

1.7 at 25℃

EPA Substance Registry System

Benzeneacetaldehyde, cyclic acetal with 1,2,3-propanetriol (29895-73-6)

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H302Harmful if swallowed

H315Causes skin irritation

H319Causes serious eye irritation

Precautionary statements

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P270Do not eat, drink or smoke when using this product.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P301+P312IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.

P302+P352IF ON SKIN: wash with plenty of soap and water.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

P321Specific treatment (see … on this label).

P330Rinse mouth.

P332+P313IF SKIN irritation occurs: Get medical advice/attention.

P362Take off contaminated clothing and wash before reuse.

P501Dispose of contents/container to..…

FEMA 2877 Chemical Properties,Usage,Production

Chemical Properties

2-Benzyl-1,3-dioxolan-4-methanol is not found in nature. It is a colorless, slightly viscous liquid, d²⁰₄ 1.154–1.162, n²⁰_D 1.529–1.534, with a tenacious honey, cyclamen, and rose note. It is prepared by acetalization of phenylacetaldehyde with glycerine.

Chemical Properties

Phenylacetaldehyde glyceryl acetal has a faint, sweet, rosy odor and a sweet green flavor.

Occurrence

Has apparently not been reported to occur in nature.

Uses

2-Benzyl-5-hydroxymethyl-1,3-dioxolane has very pleasant effects when used in sufficiently high concentration in Rose, Chypre, Hyacinth, Lilac, etc. as an “undertone” material. It is excellent for “forest “-green undertones in Muguet, or for the deep-green leafy notes of Lilac, but it needs supporting notes, and it is not a powerful odorant. It is also used in flavor compositions as a fixative in certain fruit types, and in “floral” flavor types as a bouquetting material in traces. The concentration used is about 5 to 20 ppm in the finished product.

Definition

ChEBI: 2-Benzyl-5-hydroxymethyl-1,3-dioxolane is a member of benzenes.

Preparation

From phenylacetaldehyde and glycerol.

Toxicity evaluation

The acute oral LD₅₀ value in rats was reported as 1.72 ml/kg (1.57-1.87 ml/kg) and the acute dermal LD₅₀ value in rabbits exceeded 2 g/kg (Moreno, 1972). The ip LD₅₀ for mice was found to be 2.7 ± 0.23 mmol/kg (523.8 ± 44.62 mg/kg) and the mean paralysing dose (ED50) for ip administration to mice was found to be 0.77 + 0.07 mmol/kg (Berger, 1951).

Flammability and Explosibility

Non flammable

Trade name

Acetal CD (Givaudan).

Metabolism

Acetals hydrolyse readily in the presence of acids to generate the corresponding aldehydes and alcohols (Fassett, 1963).