D-maltose / amylose /4-o- α- D-glucopyranosyl-d-glucose /maltose

English name：Maltose

Other names:  Starch sugar

CAS No.: 69-79-4

C12H22O11 = 342.30

PH value (10% aqueous solution): 4.0 ~ 7.0

Dextrin and soluble starch: yellow

Heavy metals: ≤ 5ppm

Physicochemical properties: white crystalline powder, sweet. The sweetness is 40% of sucrose, and the melting point is 102 ~ 103 ℃. Density (17 ℃) 1.540g/cm3. Soluble in water, slightly soluble in ethanol, insoluble in ether. Right optical rotation

Purpose: scientific research and experiment. There are aldehyde groups in the molecular structure of bud sugar, which is a reducing sugar with reducibility. Therefore, silver mirror reaction can occur with silver ammonia solution, and brick red precipitation can be formed by reaction with newly prepared alkaline copper hydroxide. It can be hydrolyzed under certain conditions to produce two molecules of glucose. Used as biological culture medium, polysulfide determination agent, analytical chemistry colorimetry standard brown

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