| Identification | Back Directory | [Name]
hex-2-enal | [CAS]
505-57-7 | [Synonyms]
2-Hexenal
HEXEN-2-AL
hex-2-enal
HEXENE-2-AL
2-Hexene-1-one
2-hexenal,2-hexen-1-al | [EINECS(EC#)]
208-014-0 | [Molecular Formula]
C6H10O | [MDL Number]
MFCD00007008 | [MOL File]
505-57-7.mol | [Molecular Weight]
98.143 |
| Chemical Properties | Back Directory | [Melting point ]
-66°C (estimate) | [Boiling point ]
133.68°C (estimate) | [density ]
0.8445 | [FEMA ]
2560 | HEXEN-2-AL | [refractive index ]
1.4460 | [color ]
A colourless liquid. | [Odor]
at 100.00 %. sweet almond fruity green leafy apple plum vegetable | [Odor Type]
green | [JECFA Number]
1353 | [LogP]
1.58 | [EPA Substance Registry System]
2-Hexenal (505-57-7) |
| Hazard Information | Back Directory | [Description]
2-Hexenal has a characteristic green, leafy odor. | [Chemical Properties]
2-Hexenal has a sweet, fragrant, almond, fruity green, leafy, apple, plum, vegetable odor.
| [Occurrence]
Reported found in the distillation waters of several plants, such as Carpinus betulus; also identified among the
constituents of tea (leaves) oil and in citronella. Also reported found in numerous foods including apple juice, apricot, banana, citrus
peel oils and juices, blueberry, strawberry, guava, peach, pear, melon, cabbage, kohlrabi, cucumber, lettuce, leek, peas, tomato, thymus, butter, milk, fish, fish oil, meats, hop oil, beer, grape wines, peanut oil, pecans, potato chips, soybeans, avocado, olive, passion
fruit, plum, Malay apple, star fruit, mango, cauliflower, fig, artichoke, coriander leaf, rice, radish, lovage leaf, laurel, loquat, endive,
nectarines, clam, quince and tobacco. | [Definition]
ChEBI: A hexenal having the double bond at the 2-position. | [Preparation]
From interaction of butyraldehyde acetal with vinyl ether followed by hydrolysis or by any other suitable means. | [Aroma threshold values]
Detection: 30 ppb; aroma characteristics at 1.0%: pungent green fatty, fresh fruity aldehydic, with fresh
leafy apple and watermelon nuances. | [Taste threshold values]
Taste characteristics at 5 ppm: fruity, fresh green, herbal and vegetative, apple and melon with a slight yeasty
nuance.
| [Toxicity evaluation]
The acute oral LD50 value in rats was reported as 0.85 g/kg (0.65-1.05 g/kg) (Moreno, 1973). The oral LD50 values for trans-2-hexenal were reported as 780-1130 and 1550-1750 mg/kg in rats and mice, respectively, and the ip LD50 values were reported as 100-200 mg/kg in both species (Gaunt, Colley, Wright, Creasey, Grasso & Gangolli, 1971). The acute dermal LD50 value in rabbits was reported as 0.60 g/kg (0.37-0.83 g/kg) (Moreno, 1973). |
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