Anthrone

Anthrone C₁₄H₁₀O  =  194.2 (90-44-8)

Analytical reagent grade of commerce.

A pale yellow, crystalline powder; melting point, about 155°.

When used in an assay for glucose or dextrans, complies with the following test.

Sensitivity to glucose Add, carefully, 6  ml of a 0.2% w/v solution in a mixture of 19  ml of sulphuric acid and 1  ml of water to 3  ml of a solution containing 5  µg of d- glucose per  ml and heat in a water bath for 5 minutes. The solution is a darker green than a solution prepared in the same manner but omitting the glucose.