Name:C.I.Direct Red 186,C.I.26540
Molecular Structure: Double azo class
Molecular Weight: 602.42
CAS Registry Number:6406-36-6
Properties and Applications: Dark purplish red. Soluble in water for red, and adequate soluble in alcohol. In the dark for the strong sulfuric acid, diluted as a pale orange-red to brown. The dye solution to join strong hydrochloric acid have red light brown precipitation; Add sodium hydroxide to red light brown.
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