Identification | Back Directory | [Name]
TRANS-2-PENTENAL | [CAS]
764-39-6 | [Synonyms]
FEMA 3218 2-Pentanal 2-pentenal T2 PENTENAL Pent-2-enal PENTENE-2-AL TRANS-2-PENTEN-1-AL gamma-methylcrotonaldehyde TRANS-2-PENTENAL USP/EP/BP | [EINECS(EC#)]
212-120-2 | [Molecular Formula]
C5H8O | [MDL Number]
MFCD00009615 | [MOL File]
764-39-6.mol | [Molecular Weight]
84.12 |
Chemical Properties | Back Directory | [Melting point ]
-101.15°C (estimate) | [Boiling point ]
80-81 °C160 mm Hg(lit.)
| [density ]
0.86 g/mL at 25 °C(lit.)
| [FEMA ]
3218 | 2-PENTENAL | [refractive index ]
n20/D 1.440-1.446(lit.)
| [Fp ]
73 °F
| [Odor]
at 1.00 % in dipropylene glycol. pungent green apple orange tomato | [Odor Type]
green | [JECFA Number]
1364 | [LogP]
1.281 (est) | [EPA Substance Registry System]
2-Pentenal (764-39-6) |
Hazard Information | Back Directory | [Chemical Properties]
2-Pentenal has a pungent, green, apple, orange, tomato odor. | [Occurrence]
Reported found in aqueous orange essence (trans-form); as a flavor component in cognac oil, in Chrysocoris
stolli, in tomato aroma, in the autooxidation of cod liver oil, in peas, as a flavoring component of reverted soybean oil, in salmon oil,
in potato chips during storage, in butterfat fishy flavor. Also reported found in strawberry, cooked potato, wheat bread, parmesan
cheese, butter, caviar, fatty fish, cooked beef, tea, peanuts, peas, trassi, mango, raspberry, pumpkin, Bourbon vanilla, oysters and
loganberry. | [Definition]
ChEBI: An enal consisting of pent-2-ene having an oxo group at the 1-position | [Preparation]
By treating β-phenoxyacrolein with secondary amines, Grignard reagent and active methylene compounds; by heating
1-ethoxy-1,3-pentadiene with H3PO4 at 80°C; from cis- and trans-but-2-ene-1,4-diol and SOCl2, followed by treatment of the chloroalcohol
with methyl magnesium bromide and final oxidation with MnO2. | [Safety Profile]
Poison by intraperitoneal route. Mutation data reported. Whenheated to decomposition it emits acrid smoke and irritating fumes. |
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BOC Sciences
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1-631-485-4226; 16314854226 |
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