2,4-Hexadienal , >95.0%(GC) , 142-83-6

Synonym(s):
(E,E)-2,4-Hexadienal;Sorbaldehyde;Sorbic aldehyde

CAS NO.：142-83-6

Empirical Formula: C6H8O

Molecular Weight: 96.13

MDL number: MFCD00007004

EINECS: 205-564-3

PRODUCT Properties

• Melting point: -16.5°C
• Boiling point: 69 °C/20 mmHg (lit.)
• Density: 0.895 g/mL at 20 °C 0.871 g/mL at 25 °C (lit.)
• vapor density: >1 (vs air)
• refractive index: n20/D 1.541(lit.)
• FEMA: 3429 | TRANS,TRANS-2,4-HEXADIENAL
• Flash point: 154 °F
• storage temp.: 2-8°C
• solubility: Almost insoluble in water, soluble in alcohol and oils.
• form: liquid
• color: Colorless
• Specific Gravity: 0.871
• Odor: at 10.00 % in dipropylene glycol. sweet green spicy floral citrus
• Odor Type: green
• Water Solubility: It is Insoluble in water, but soluble in ethanol.
• Sensitive: Air Sensitive
• JECFA Number: 1175
• BRN: 1698401
• Stability: Stable. Combustible. Incompatible with strong reducing agents, strong bases, strong oxidizing agents.
• LogP: 1.06
• CAS DataBase Reference: 142-83-6(CAS DataBase Reference)
• IARC: 2B (Vol. 101) 2013
• NIST Chemistry Reference: 2,4-Hexadienal, (E,E)-(142-83-6)
• EPA Substance Registry System: 2,4-Hexadienal, (2E,4E)- (142-83-6)

Description and Uses

trans, frans-2,4-Hexadienal has a fresh, green, floral citrus odor. May be synthesized by slowly heating croton-aldehyde with acetaldehyde in the presence of pyridine at 85 - 90°C.

trans,trans-2,4-Hexadienal (sorbic aldehyde) was used in the synthesis of chiral cycloadducts.

Safety

• Symbol(GHS): GHS05,GHS06
• Signal word: Danger
• Hazard statements: H301+H311-H314-H317
• Precautionary statements: P261-P270-P280-P303+P361+P353-P304+P340+P310-P305+P351+P338
• Hazard Codes: T,Xi,Xn
• Risk Statements: 22-24-34-43-36/37/38-20/21/22
• Safety Statements: 26-36/37/39-45-36
• RIDADR: UN 2922 8/PG 3
• WGK Germany: 3
• RTECS: WG1925000
• F: 1-10
• Hazard Note: Irritant
• TSCA: Yes
• HazardClass: 6.1
• PackingGroup: III
• HS Code: 29121900
• Hazardous Substances Data: 142-83-6(Hazardous Substances Data)