Amidol by Research Lab Fine Chem Industries is a high grade reagent. Also known as 2,4-Diaminophenol Dihydrochloride, this compound is a dihydrogen chloride salt. The reagent is available as a crystalline colourless powder which is soluble in water. It has a melting point of 78 to 80 C. Aging of the Amidol reagent changes it colour to a dark red-brown, and must be stored properly.

• CAS No. 137-09-7
• Quantity provided: 25 gm per pack
• Molecular formula: C6H8N2O.2HCl
• Molecular weight: 197.06
• Assay minimum: 97%

Amidol has a wide range of applications in chemical and biological industries. This compound is popularly used as a colour accelerator in photographic developers. This compound is considered unusual amongst other developing agents which work most effectively in slightly acid conditions rather than the strongly alkaline conditions required for most other developers. The colour changing property on oxidation has been used in colorimetric assays for measuring the dissolved oxygen concentration in water supplies, rivers, etc. Amidol has also been used in dye manufacturing industries. These reagents are suitable for industrial and research applications.