trans-2-Methyl-2-butenal
ALDRICH/W340707 - sum of isomers, ≥99%, FG
Synonym: Tiglic aldehyde; (E)-2-Methylbut-2-enal; trans-2,3-Dimethylacrolein; trans-2-Methyl-2-butenal; Tiglinaldehyde
CAS Number: 497-03-0
Empirical Formula (Hill Notation): C5H8O
Molecular Weight: 84.12
MDL Number: MFCD00006977
Linear Formula: CH3CH=C(CH3)CHO
Product Type: Chemical
| agency | meets purity specifications of JECFA |
| application(s) | flavors and fragrances |
| assay | ≥99% |
| biological source | synthetic |
| bp | 116-119 °C/752 mmHg (lit.) |
| 116-122 °C | |
| density | 0.869 g/mL at 20 °C |
| 0.871 g/mL at 25 °C (lit.) | |
| documentation | see Safety & Documentation for available documents |
| food allergen | no known allergens |
| grade | FG |
| Halal | |
| Kosher | |
| impurities | <2.0% tiglic acid |
| InChI | 1S/C5H8O/c1-3-5(2)4-6/h3- |
| InChI key | ACWQBUSCFPJUPN-HWKANZROSA |
| organoleptic | green; fruity |
| Quality Level | 300 ![]() |
400 ![]() |
|
| refractive index | n |
| reg. compliance | EU Regulation 1334/2008 & 178/2002 |
| SMILES string | CC=C(/C)C=O |
| Application: |
|
| General description: | trans-2-Methyl-2-butenal is one of the major volatile constituents of coriander and olive oil. |
| Packaging: | 1 kg in aluminum bottle |
| Packaging: | 100 g in glass bottle |
| Packaging: | 5 kg in steel drum |
| Symbol | ![]() GHS02,GHS07 |
| Signal word | Danger |
| Hazard statements | H225 - H315 - H319 - H335 |
| Precautionary statements | P210 - P233 - P240 - P241 - P303 + P361 + P353 - P305 + P351 + P338 |
| Hazard Codes | Xi |
| Risk Statements | 10-36/37/38 |
| Safety Statements | 26 |
| RIDADR | UN 1989BE 3 / PGII |
| WGK Germany | WGK 3 |
| Flash Point(F) | 69.8 °F - closed cup |
| Flash Point(C) | 21 °C - closed cup |
| Purity | ≥99% |
| bp | 116-119 °C/752 mmHg (lit.); 116-122 °C |
| Density | 0.869 g/mL at 20 °C; 0.871 g/mL at 25 °C (lit.) |
| Refractive Index | n |
| FEMA Number | 3407 |
| UNSPSC | 12164502 |



