2-Nitrophenyl-beta-D-galactopyranoside (ONPG) [369-07-3]

2-Nitrophenyl-Beta-D-Galactopyranoside (Onpg) [369-07-3] is a professionally supplied chemical reagent belonging to the Stains & Indicators category. Its molecular formula is C12H15NO8, with a molecular weight of 301.25. This compound is a beta-D-galactopyranoside derivative, serving as a substrate for the enzyme beta-galactosidase. It is supplied as a white to off-white powder, conforming to reference standards, with a minimum purity of 98.0%. A 1% solution in water presents as a clear, colourless to slightly yellow solution. The maximum water content is 0.5%, as determined by Karl Fischer analysis. Specific optical rotation ranges between - 65.0 ° C to -73.0 ° C for a concentration of 1 in H2O. This product is stored at temperatures between 2 to 8 °C.

• CAS Number: 369-07-3
• Purity (HPLC): Min. 98.0%
• Water Content ( Karl Fisher): Max. 0.5%
• Molecular Weight: 301.25
• Harmonised Tariff Code: 2940000080
• Molecular Formula: C12H15NO8
• Appearance: White to off -white powder
• Categories: Biochemicals Carbohydrates Stains & Indicators