p-Nitrophenyl Phosphate, Disodium salt hexahydrate 99+% (HPLC) (pNPP, 4-Nitrophenyl phosphate)

RT

371, 14

White to faint yellow powder or crystals.

Chromogenic substrate for the determination of acid and alkaline phosphatases. The reaction produces a soluble end product that is yellow in color. The reaction may be stopped with 3N NaOH and read at 405nm.

Synonyms:
pNPP, 4-Nitrophenyl phosphate

CAS No:
333338-18-4

Molecular Formula:
C6H4NNa2O6P·6H2O

Molecular Weight:
371.14

Appearance:
White to faint yellow powder or crystals.

Purity:
≥99% (HPLC)

Solubility (5% water):
Colorless to faint yellow, clear solution

Water (Karl Fisher):
24-34%

Melting Point:
>300°C

INFRARED SPECTRUM:
Conforms to structure

Inorganic Impurities:
0.2%

p-Nitrophenol:
≤0.01%

Storage and Stability:
Store at 4ºC. Stable for 6 months after receipt. Light sensitive

Important Note:
This product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications without the expressed written authorization of United States Biological.

Toxicity and Hazards: 
All products should be handled by qualified personnel only, trained in laboratory procedures.