|
|
| | trans-2-Methyl-2-pentenoic acid Basic information |
| | trans-2-Methyl-2-pentenoic acid Chemical Properties |
| Melting point | 26-28 °C (lit.) | | Boiling point | 123-125 °C/30 mmHg (lit.) | | density | 0.979 g/mL at 25 °C | | vapor density | >1 (vs air) | | vapor pressure | 1.63Pa at 24℃ | | refractive index | n20/D 1.46(lit.) | | FEMA | 3195 | 2-METHYL-2-PENTENOIC ACID | | Fp | 226 °F | | storage temp. | Sealed in dry,Room Temperature | | solubility | soluble in Chloroform, Methanol | | pka | 5.00±0.19(Predicted) | | form | clear liquid | | color | Colorless to Light orange to Yellow | | Odor | at 10.00 % in dipropylene glycol. fruity strawberry woody | | Odor Type | fruity | | biological source | synthetic | | Water Solubility | insoluble | | Major Application | flavors and fragrances | | Cosmetics Ingredients Functions | PERFUMING | | InChI | 1S/C6H10O2/c1-3-4-5(2)6(7)8/h4H,3H2,1-2H3,(H,7,8)/b5-4+ | | InChIKey | JJYWRQLLQAKNAD-SNAWJCMRSA-N | | SMILES | CC\C=C(/C)C(O)=O | | LogP | 1.9 at 25℃ | | CAS DataBase Reference | 16957-70-3(CAS DataBase Reference) | | NIST Chemistry Reference | 2-Pentenoic acid, 2-methyl-, (E)-(16957-70-3) | | EPA Substance Registry System | 2-Pentenoic acid, 2-methyl-, (2E)- (16957-70-3) |
| Hazard Codes | C | | Risk Statements | 34 | | Safety Statements | 26-36/37/39-45 | | RIDADR | UN 3261 8/PG 3 | | WGK Germany | 2 | | TSCA | TSCA listed | | REACH Registrations | Active | | HazardClass | 8 | | PackingGroup | III | | HS Code | 2916199590 | | Storage Class | 8A - Combustible corrosive hazardous materials | | Hazard Classifications | Skin Corr. 1B |
| | trans-2-Methyl-2-pentenoic acid Usage And Synthesis |
| Chemical Properties | clear colorless to pale yellow liquid | | Chemical Properties | 2-Methyl-2-pentenoic acid has a fruity odor. | | Occurrence | Reported found in strawberry | | Uses | trans-2-Methyl-2-pentenoic Acid is an unsaturated analog of the anticonvulsant Valproic Acid (V094750) and is used for aroma characterization of different beers with different hops. | | Preparation | By distillation of 2-hydroxy-2-methylvaleric acid (cis-form). | | Definition | ChEBI: 2-Methyl-2-pentenoic acid is a methyl-branched fatty acid. It is a conjugate acid of a 2-methyl-(2E)-pentenoate(1-). | | Taste threshold values | Taste characteristics at 50 ppm: sour, acidic, sweaty, berry and fruit-like. | | General Description | Adsorption and desorption of trans-2-methyl-2-pentenoic acid in dichloromethane has been investigated by using in situ attenuated total reflection infrared spectroscopy. Asymmetric hydrogenation of trans-2-methyl-2-pentenoic acid in hexane over two well defined E-40692 and E-5220 Engelhard Pd/Al2O3 catalysts modified with cinchonidine has been studied. | | Flammability and Explosibility | Not classified |
| | trans-2-Methyl-2-pentenoic acid Preparation Products And Raw materials |
|