Certificate of Analysis
| Product Name: | PNPP disodium |
| Catalog Number: | M9399 |
| CAS Number: | 4264-83-9 |
Physical and Chemical Properties
| Formula: | C6H4NNa2O6P |
| Molecular Weight: | 263.05 |
| Form: | Solid |
| Solubility: | Water ≥ 100 mg/mL |
| Storage: | 2-8°C, protect from light, dry, sealed |
| Chemical Structure: |  |
Analytical Data
| QC Standard: | >99.0% |
| H-NMR: | Consistent with structure |
Product Information
| Description: | PNPP (Para-nitrophenyl phosphate) disodium is a non-proteinaceous chromogenic substrate for alkaline and acid phosphatases used in ELISA and conventional spectrophotometric assays. |
| Stability and Solubility Advice: | Information concerning product stability, particularly in solution, has rarely been reported and in most cases we can only offer a general guide. We recommend that stock solutions, once prepared, are stored aliquoted in tightly sealed vials and used within 1 month. Avoid repeated freeze and thaw cycles. Storage conditions for some special products should refer to their storage details. |