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Overview
ONPG (2-Nitrophenyl ?-D-galactopyranoside) is a colorimetric and spectrophotometric substrate used to detect ?-galactosidase activity.
Chemical Properties
| Molecular Formula | C12H15NO8 |
| Molecular Weight | 301.25 |
| CAS Numbers | 369-07-3 |
| Solubility | DMSO |
| Purity | 98% by HPLC |
| SMILES Code | O([C@@H]1O[C@H](CO)[C@H](O)[C@H](O)[C@H]1O)C2=C(N(=O)=O)C=CC=C2 |
Storage and Handling
0C Short Term, -20C Long Term
References
Zhang X, et al. Metagenomic approach for the isolation of a thermostable ?-galactosidase with high tolerance of galactose and glucose from soil samples of Turpan Basin. BMC Microbiol. 2013 Oct 24;13 237.