Your shopping cart is currently empty

Naphthol AS-TR phosphate disodium is a water-soluble chromogenic dye widely employed as an enzymatic substrate for detecting alkaline phosphatase activity, as it undergoes enzymatic hydrolysis to yield a measurable colored product, enabling sensitive spectrophotometric monitoring of enzyme activity in biological samples such as serum or urine for diagnostic and biochemical assay applications.

| Pack Size | Price | USA Warehouse | Global Warehouse | Quantity |
|---|---|---|---|---|
| 25 mg | $35 | - | In Stock | |
| 50 mg | $52 | - | In Stock | |
| 100 mg | $81 | - | In Stock |
| Description | Naphthol AS-TR phosphate disodium is a water-soluble chromogenic dye widely employed as an enzymatic substrate for detecting alkaline phosphatase activity, as it undergoes enzymatic hydrolysis to yield a measurable colored product, enabling sensitive spectrophotometric monitoring of enzyme activity in biological samples such as serum or urine for diagnostic and biochemical assay applications. |
| Molecular Weight | 435.71 |
| Formula | C18H13ClNNa2O5P |
| Cas No. | 4264-93-1 |
| Smiles | O=C(C1=CC2=C(C=C1OP([O-])([O-])=O)C=CC=C2)NC3=CC=C(C=C3C)Cl.[Na+].[Na+] |
| Storage | keep away from direct sunlight | -20°C for 2 years, 4°C for 1 year | Shipping with blue ice. | ||||||||||||||||||||||||||||||||||||||||
| Solubility Information | H2O: 80 mg/mL (183.61 mM), Sonication is recommended. DMSO: 40 mg/mL (91.8 mM), Sonication is recommended. | ||||||||||||||||||||||||||||||||||||||||
Solution Preparation Table | |||||||||||||||||||||||||||||||||||||||||
DMSO/H2O
H2O
| |||||||||||||||||||||||||||||||||||||||||
Dissolve 2 mg of the compound in 100 μL DMSO
to obtain a stock solution at a concentration of 20 mg/mL . If the required concentration exceeds the compound's known solubility, please contact us for technical support before proceeding.
1) Add 100 μL of the DMSO
stock solution to 400 μL PEG300
and mix thoroughly until the solution becomes clear.
2) Add 50 μL Tween 80 and mix well until fully clarified.
3) Add 450 μL Saline,PBS or ddH2O
and mix thoroughly until a homogeneous solution is obtained.
| Size | Quantity | Unit Price | Amount | Operation |
|---|

Copyright © 2015-2026 TargetMol Chemicals Inc. All Rights Reserved.