ONPG；o-Nitrophenyl β-D-galactopyranoside CAS 369-07-3
Item No.： E0107
Store at： -20℃
English name：ONPG；o-Nitrophenyl β-D-galactopyranoside ；2-Nitrophenyl β-D-galactopyranoside
Other name: 2-nitrobenzene- β- D-galactopyranoside; 2-nitrophenyl- β- D-furan galactoside
C12H15NO8=301.25
Grade：Ultra Pure Grade
Content：≥99.0%
Specific rotation：-72°～-68°
Solubility (1%, Water)：Pass
pH：6.8～7.6
Melting point：185～190℃
Loss on drying(105℃,3hr)：<0.5%
Heavy metal：<0.0005%
Physicochemical properties: White or off white crystalline powder.It is soluble in water and methanol, the solubility in water can reach 15mg / ml.It is hygroscopic.
Purpose: Biochemical research.For detection β- Galactosidase（ β- Galactosidase) activity, yes β- Galactosidase chromogenic substrate.Through β- The yellow product can be produced after galactosidase catalysis, and the absorbance can be detected at the wavelength of 410-420nm.
