FUMARALDEHYDE BIS(DIMETHYL ACETAL) Property

Boiling point:

100-103 °C15 mm Hg(lit.)

Density 

1.01 g/mL at 25 °C(lit.)

refractive index 

n20/D 1.428(lit.)

Flash point:

169 °F

storage temp. 

Refrigerator (+4°C)

solubility 

Acetonitrile (Slightly), Chloroform (Slightly)

form 

Liquid

color 

Clear colorless to slightly yellow

BRN 

1723349

Safety

Hazard Codes 

Xi

Risk Statements 

38

WGK Germany 

3

F 

9-23

HS Code 

29110000

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H227Combustible liquid

H315Causes skin irritation

H319Causes serious eye irritation

Precautionary statements

P210Keep away from heat/sparks/open flames/hot surfaces. — No smoking.

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

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

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.

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

P337+P313IF eye irritation persists: Get medical advice/attention.

P370+P378In case of fire: Use … for extinction.

P403+P235Store in a well-ventilated place. Keep cool.

P501Dispose of contents/container to..…

FUMARALDEHYDE BIS(DIMETHYL ACETAL) Chemical Properties,Usage,Production

Chemical Properties

Clear colorless to slightly yellow liquid

Uses

Fumaraldehyde bis(dimethyl acetal) may be used in the syntheses of C₂₀-carotene and crocetin or descrocetin esters. It may be used in the preparation of fumaraldehyde dimethylacetal, (FDMA), by partial acid hydrolysis.

Purification Methods

Dry it over fused CaCl2 and distil it in vacuo. The maleic (cis) isomer has b 112o/11mm, and d23 0.932 and n 251.4243. [Zeik & Heusner Chem Ber 90 1869 1957, Clauson-Kaas et al. Acta Chem Scand 9 111 1955, Clauson-Kaas Acta Chem Scand 6 569 1952, Beilstein 1 IV 3754.]