trans-4-Hydroxy-L-proline
ALDRICH/H54409 - ≥99%
Synonym: (2S,4R)
CAS Number: 51-35-4
Empirical Formula (Hill Notation): C5H9NO3
Molecular Weight: 131.13
EC Number: 200-091-9
MDL Number: MFCD00064320
Linear Formula: C5H9NO3
Product Type: Chemical
| application(s) | peptide synthesis |
| assay | ≥99% |
| color | white to off-white |
| form | crystalline powder |
| InChI | 1S/C5H9NO3/c7-3-1-4(5(8)9 |
| InChI key | PMMYEEVYMWASQN-DMTCNVIQSA |
| mp | 273 °C (dec.) (lit.) |
| optical activity | [α]25/D −75.6°, c = 1 in H2O |
| Quality Level | 200 ![]() |
| reaction suitability | reaction type: solution phase peptide synthesis |
| SMILES string | O[C@H]1CN[C@@H](C1)C(O)=O |
| Application: | Versatile reagent for the synthesis of neuroexcitatory kainoids and antifungal echinocandins. Also employed in the synthesis of chiral ligands for enantioselective ethylation of aldehydes. |
| General description: | Trans-4-hydroxy-L-proline is an isomer of hydroxyproline used as a chiral building block in the production of many pharmaceuticals like neuroexcitatory kainoids. |
| Other Notes: | Natural constituent of animal structural proteins such as collagen and elastin. |
| Packaging: | 2.5, 10, 25, 100 g in poly bottle |
| RIDADR | NONH for all modes of transport |
| WGK Germany | WGK 1 |
| Purity | ≥99% |
| mp | 273 °C (dec.) (lit.) |
| UNSPSC | 12352209 |

