| FEMA | N/A |
| CAS | 51-35-4 |
| EINECS | 200-091-9 |
| JECFA Food Flavoring | N/A |
| CoE Number | N/A |
| Organoleptic Notes |
|
| Odor | N/A |
| Flavor | N/A |
| Material Notes | a hydroxylated form of the imino acid proline. a deficiency in ascorbic acid can result in impaired hydroxyproline formation. |