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HomeProduct name listtrans-2-Heptenal

trans-2-Heptenal

Synonym(s):(E)-2-Heptenal

  • CAS NO.:18829-55-5
  • Empirical Formula: C7H12O
  • Molecular Weight: 112.17
  • MDL number: MFCD00007010
  • EINECS: 242-608-0
  • SAFETY DATA SHEET (SDS)
  • Update Date: 2024-10-24 21:11:45
trans-2-Heptenal Structural

What is trans-2-Heptenal?

Chemical properties

clear colorless to light yellow liquid

The Uses of trans-2-Heptenal

trans-2-Heptenal is found in the scent-gland secretion of Oebalus pugnax (rice stink bug). trans-2-Heptenal is also an odour active compound found in guava.

Definition

ChEBI: (E)-hept-2-enal is a monounsaturated fatty aldehyde that is (2E)-hept-2-ene which is carrying an oxo group at position 1. Found in the peel of Malaysian pink and white pomelo peel and in the scent gland secretion of the rice stink bug Oebalus pugnax. It has a role as a plant metabolite and a uremic toxin. It is an enal, a monounsaturated fatty aldehyde and a medium-chain fatty aldehyde.

Synthesis Reference(s)

Journal of the American Chemical Society, 108, p. 452, 1986 DOI: 10.1021/ja00263a015
Tetrahedron Letters, 21, p. 3987, 1980 DOI: 10.1016/S0040-4039(00)92851-X

General Description

trans-2-Heptenal is a volatile flavor constituent identified in heated butter and tomato.

Properties of trans-2-Heptenal

Melting point: -53.35°C (estimate)
Boiling point: 90-91 °C50 mm Hg(lit.)
Density  0.857 g/mL at 25 °C(lit.)
vapor density  >1 (vs air)
refractive index  n20/D 1.450(lit.)
FEMA  3165 | TRANS-2-HEPTENAL
Flash point: 128 °F
storage temp.  2-8°C
form  neat
form  Liquid
color  Colorless to Light yellow to Light orange
Odor at 1.00 % in dipropylene glycol. pungent green vegetable fresh fatty
JECFA Number 1360
BRN  1700822
CAS DataBase Reference 18829-55-5(CAS DataBase Reference)
NIST Chemistry Reference 2-Heptenal, (E)-(18829-55-5)
EPA Substance Registry System 2-Heptenal, (2E)- (18829-55-5)

Safety information for trans-2-Heptenal

Signal word Danger
Pictogram(s)
ghs
Flame
Flammables
GHS02
ghs
Skull and Crossbones
Acute Toxicity
GHS06
GHS Hazard Statements H226:Flammable liquids
H311:Acute toxicity,dermal
H317:Sensitisation, Skin
Precautionary Statement Codes P210:Keep away from heat/sparks/open flames/hot surfaces. — No smoking.
P233:Keep container tightly closed.
P280:Wear protective gloves/protective clothing/eye protection/face protection.
P301+P312:IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.
P303+P361+P353:IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.

Computed Descriptors for trans-2-Heptenal

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