Quinine hemisulfate salt monohydrate

English Name: quinine hemisulfate salt monohydrate

Other names: (8s, 9R) - 6 '- methoxysodium-9-alcohol sulfate monohydrate; Quinine sulfate monohydrate; Quinine sulfate monohydrate; Quinine hemisulfate monohydrate; Cinchona sulfate monohydrate

CAS No.: 6119-70-6

C20H24N2O2·0.5H2O4S·H2O=391.47

Grade: br

Content: 98 ～ 101%

Chloride: ≤ 0.01%

Heavy metal: ≤ 20ppm

Melting point: 233 ～ 235 ℃

Solubility (5% in 95% ethanol): clear, colorless to very fine yellow solution

 Physicochemical  Properties: white to almost white powder or needle like crystal. No smell. It tastes extremely bitter. The dew gradually turns brown, and the crystal water is lost at about 100 ℃. Saturated solution pH 6.2. It is extremely soluble in the mixture of 2 parts of chloroform and 1 part of absolute ethanol, and 1g is dissolved in 810ml of water, 32ml of boiling water, 120ml of ethanol, and about 10ml of hot ethanol. Slightly soluble in chloroform and ether. Irritating

Purpose: biochemical research. When the acid is titrated under ultraviolet irradiation, it is used as a fluorescent indicator, pH 3.8 ~ 6.1 (Sky Blue ~ Purple), pH 9.5 ~ 10 (fluorescence disappears). Determination of tungsten in gravimetric analysis. Determination of bismuth in colorimetric analysis. Determination of phosphorus by turbidimetry

Storage: RT, protected from light. Shelf life: 5 years