| trans-2-Methyl-2-pentenoic acid Basic information |
| Product Name: | trans-2-Methyl-2-pentenoic acid |
| Synonyms: | FEMA NUMBER 3195;FEMA 3195;(e)-2-methylpent-2-en-1-oic acid;RARECHEM AL BE 0127;STRAWBERRIFF;TRANS-2-METHYL-2-PENTENOIC ACID 98+% F;2-Pentenoic acid, 2-methyl-, (2E)-;(E)-2-Methylpent-2-en-1-sure |
| CAS: | 16957-70-3 |
| MF: | C6H10O2 |
| MW: | 114.14 |
| EINECS: | 241-026-4 |
| Product Categories: | C6;Carbonyl Compounds;Carboxylic Acids |
| Mol File: | 16957-70-3.mol |
| 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℃ |
| FEMA | 3195 | 2-METHYL-2-PENTENOIC ACID |
| refractive index | n |
| Fp | 226 °F |
| storage temp. | Sealed in dry,Room Temperature |
| pka | 5.00±0.19(Predicted) |
| form | clear liquid |
| color | Colorless to Light orange to Yellow |
| Water Solubility | insoluble |
| InChIKey | JJYWRQLLQAKNAD-SNAWJCMRSA-N |
| 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) |
| Safety Information |
| Hazard Codes | C |
| Risk Statements | 34 |
| Safety Statements | 26-36/37/39-45 |
| RIDADR | UN 3261 8/PG 3 |
| WGK Germany | 2 |
| TSCA | Yes |
| HazardClass | 8 |
| PackingGroup | III |
| HS Code | 2916199590 |
| MSDS Information |
| Provider | Language |
|---|---|
| (E)-2-Methylpent-2-en-1-oic acid | English |
| SigmaAldrich | English |
| ACROS | English |
| ALFA | English |
| 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 |
| Preparation | By distillation of 2-hydroxy-2-methylvaleric acid (cis-form). |
| 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 | Notclassified |
| trans-2-Methyl-2-pentenoic acid Preparation Products And Raw materials |
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