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Product Name: |
trans,trans-2,4-Heptadienal |
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Synonyms: |
2,4-Heptadienal technical grade, 90%;trans,trans-2,4-Heptadiel;4-Heptadienal,(E,E)-2;Hepta-2(E),4(E)-dienal;T2 T4 HEPTADIENAL;2,4-HEPTADIEN-1-AL;2,4-HEPTADIENAL;FEMA 3164 |
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CAS: |
4313-03-5 |
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MF: |
C7H10O |
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MW: |
110.15 |
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EINECS: |
224-328-0 |
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Product Categories: |
API intermediates;aldehyde Flavor;Aldehydes;C7;Carbonyl Compounds;C7Volatiles/ Semivolatiles;E-L;Alpha Sort |
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Mol File: |
4313-03-5.mol |
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Melting point |
84.5 °C |
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Boiling point |
84-84.5 °C(lit.) |
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density |
0.881 g/mL at 25 °C(lit.) |
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FEMA |
3164 | (2E,4E)-HEPTADIENAL |
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refractive index |
n20/D 1.534(lit.) |
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Fp |
150 °F |
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storage temp. |
Refrigerator (+4°C) |
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Water Solubility |
INSOLUBLE |
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JECFA Number |
1179 |
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BRN |
1699244 |
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CAS DataBase Reference |
4313-03-5(CAS DataBase Reference) |
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NIST Chemistry Reference |
2,4-Heptadienal, (E,E)-(4313-03-5) |
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EPA Substance Registry System |
2,4-Heptadienal, (2E,4E)- (4313-03-5) |
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Hazard Codes |
T,Xi |
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Risk Statements |
22-24-38 |
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Safety Statements |
36/37-45 |
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RIDADR |
UN 2810 6.1/PG 3 |
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WGK Germany |
3 |
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F |
10-23 |
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Hazard Note |
Irritant |
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HazardClass |
6.1 |
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PackingGroup |
III |
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HS Code |
29121900 |
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Description |
2,4-Heptadienal retards or prevents the development of "off-flavors" in auto-oxidizing fats and oils. May be prepared by reduction with LiAlH4 of the dienoic acid prepared by the Doebner synthesis, followed by oxidation with Mn02 of the resulting dienol to the corresponding dienol; by the method of Marshall and Whiting. |
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Chemical Properties |
2,4-Heptadienal has a fatty, green odor In auto-oxidizing fats and oils, it retards or prevents the development of “off-favors ”. |
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Chemical Properties |
clear yellow liquid |
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Chemical Synthesis |
By reduction with LiAlH4 of the dienoic acid prepared by the Doebner synthesis, followed by oxidation with MnO2 of the resulting dienol to the corresponding dienol; by the method of Marshall and Whiting. |
