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Molecular formula : MW : CAS :
nature : the white crystals. The temperature of 161 ° C to 159. Dissolved in water, soluble in alkaline solution. Such dyes for the system. By 2-naphthol-3 ,6-disulfonic acid by alkali fusion into 2,3 - naphthalene-2-naphthol-6-sulfonic acid, and then dilute sulfuric acid under pressure from handling.
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