FEMA No. 2560
trans-2-hexenal
CAS: 6728-26-3
Molecular Formula: C6H10O
FEMA No. 2560 - Names and Identifiers
| Name | trans-2-hexenal |
| Synonyms | AI3-35157 CCRIS 4565 BRN 1699684 FEMA No. 2560 2-trans-Hexenal 2-Hexenal, (E)- trans-2-hexenal trans-Hex-2-enal 2-Hexenal, (2E)- beta-Propyl acrolein trans-2-Hexenal (leaf aldehyde) 4-01-00-03468 (Beilstein Handbook Reference) |
| CAS | 6728-26-3 |
| EINECS | 229-778-1 |
| InChI | InChI=1/C6H10O/c1-2-3-4-5-6-7/h4-6H,2-3H2,1H3/b5-4+ |
FEMA No. 2560 - Physico-chemical Properties
| Molecular Formula | C6H10O |
| Molar Mass | 98.14 |
| Density | 0.846 |
| Melting Point | -78°C (estimate) |
| Boling Point | 146-149℃ |
| Flash Point | 35℃ |
| Water Solubility | INSOLUBLE |
| Vapor Presure | 10 mm Hg ( 20 °C) |
| Vapor Density | 3.4 (vs air) |
| Appearance | Form Liquid, color Clear colorless to light yellow |
| Storage Condition | 2-8℃ |
| Refractive Index | 1.444 |
| MDL | MFCD00007008 |
| Physical and Chemical Properties | Chemical properties pale yellow liquid. It is rich in fresh fruits and fragrant green leaves. There are two isomers, cis and trans. Boiling point 150~152 ℃, or 47 ℃(2266 Pa), flash point 3 7.8 ℃. Soluble in ethanol, propylene glycol and most non-volatile oils, very slightly soluble in water. Natural products exist in tea, mulberry leaves, radish leaves and other oils, as well as cucumbers, apples, peaches, orange peel, strawberries, egg fruits, papaya, etc. |
| Use | Use 1, GB 2760~96 for the allowable use of edible spices. Mainly used for the preparation of raspberry, mango, egg, apple, strawberry flavor. 2, the product has a fresh green leaf fragrance, can be used for artificial flowers, essential oils, all kinds of flower fragrance blend spices. Some derivatives of Qingye aldehyde are also spices, such as the dimethyl acetal and diethyl acetal of Qingye aldehyde; The hydrogenation of Qingye aldehyde to produce the anti-hexenyl alcohol (green leaf alcohol), oxidation of the resulting trans-hexenoic acid -2 and so on. |
FEMA No. 2560 - Risk and Safety
| Hazard Symbols | Xn - Harmful |
| Risk Codes | R10 - Flammable R21/22 - Harmful in contact with skin and if swallowed. |
| Safety Description | S16 - Keep away from sources of ignition. S36/37 - Wear suitable protective clothing and gloves. |
| UN IDs | UN 1988 |
| WGK Germany | 2 |
| RTECS | MP5900000 |
| TSCA | Yes |
| HS Code | 29121900 |
| Hazard Class | 3 |
| Packing Group | III |
FEMA No. 2560 - Upstream Downstream Industry
| Raw Materials | Acetal Hexanal |
| Downstream Products | 3-methylhexanal 1,1-Diethoxybutane METHYL TRANS-2-HEXENOATE, 98 TRANS-2-HEXENAL DIMETHYL ACETAL 2-Ethylfuran 1,2-Ethenediylbis(oxy) (9CI) |
FEMA No. 2560 - Reference
| Reference Show more | 1. [IF=6.475] Dong-Yu Shen et al."Characterization of odor-active compounds in moso bamboo (Phyllostachys pubescens Mazel) leaf via gas chromatography-ion mobility spectrometry, one- and two-dimensional gas chromatography-olfactory-mass spectrometry, and electronic nos |
FEMA No. 2560 - Introduction
Soluble in ethanol, dipropyl glycol and non-hair oil. Insoluble in water.
Last Update：2022-10-16 17:27:52
FEMA No. 2560 - Nature
| FEMA | 2560 | HEXEN-2-AL |
| JECFA Number | 1353 |
| BRN | 1699684 |
| NIST chemical information | 2-Hexenal, (E)-(6728-26-3) |
| EPA chemical information | 2-Hexenal, (2E)- (6728-26-3) |
Last Update：2024-04-10 22:29:15
FEMA No. 2560 - Production method
1. It is prepared by bromination, acetalization, debromination and hydrolysis of acetaldehyde.
2. Natural products are free by steam distillation to obtain crude products, and then extracted and refined by acetone.
It is obtained by reacting hexanal with ethylene glycol after bromination, and then hydrolyzing.
Last Update：2024-04-09 21:11:58
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View History
Raw Materials for FEMA No. 2560
Downstream Products for FEMA No. 2560
3-methylhexanal
1,1-Diethoxybutane
METHYL TRANS-2-HEXENOATE, 98
TRANS-2-HEXENAL DIMETHYL ACETAL
2-Ethylfuran
1,2-Ethenediylbis(oxy) (9CI)
1,1-Diethoxybutane
METHYL TRANS-2-HEXENOATE, 98
TRANS-2-HEXENAL DIMETHYL ACETAL
2-Ethylfuran
1,2-Ethenediylbis(oxy) (9CI)