| FEMA | N/A |
| CAS | 503-64-0 |
| EINECS | 207-973-2 |
| JECFA Food Flavoring | N/A |
| CoE Number | N/A |
| Organoleptic Notes |
|
| Odor | N/A |
| Flavor | N/A |
| Material Notes | Used in food preservatives Isocrotonic acid (or quartenylic acid) is the cis analogue of crotonic acid. It is an oil, possessing a smell similar to that of brown sugar. (Wikipedia) |