Acid alizarin blue B

English name：Acid alizarin blue B

Other name: mordant blue B; 3 - [(5-chloro-2-hydroxyphenyl) azo] - 4,5-dihydroxy-2,7-naphthalene disulfonic acid disodium salt; Mordant blue 13; Chrome blue se; Acid chrome deep blue; Chrome blue se; Acid mordant blue; Acid chrome dark blue; Acid mordant dark blue

CAS No.: 1058-92-0 c16h9cln2na2o9s2 = 518.81

Grade: chroma

Infrared spectrum identification: qualified

λ Max: 552 ～ 556nm (methanol)

λ Max: 526. ～ 530nm (methanol)

Absorbance (e1m): ≥ 320 (methanol, 552-556nm)

Absorbance (e1m): ≥ 320 (methanol, 526 ～ 530nm)

Physicochemical properties: blue black to brown black powder with metallic luster or dark blue powder. It is magenta in water, soluble in fibrinolysin and slightly soluble in ethanol. It is soluble blue in concentrated sulfuric acid, magenta after dilution, and brownish red in concentrated nitric acid. It is a red blue solution in the alkali solution for injection estimation. The aqueous solution is magenta with concentrated hydrochloric acid and blue with concentrated sodium hydroxide. The color light changes greatly when copper and iron are encountered during dyeing. Water solubility (80 ℃) 50g / L

Purpose: biochemical research. Biological stain.

Saving: RT