Trypan blue / direct blue 3B / direct blue 14

English name：Trypan blue；Sodiumditolyl-4,4-bis(2-azo-8-amino-1-naphthol-3,6-disulfonate)；Naphthyl-amine blue；Benzamine blue；Direct blue 14；Benzo blue 3B；Direct blue 3B；Niagara blue 3B；Diamino blue 3B

Other names: Trypan orchid; Trilibulan; Direct blue 3B; Trypsin blue; Direct blue 14; Trypan blue; 3,3 '- {[3,3' - dimethyl - (1,1 '- diphenyl) - 4,4' - diyl] bis (azo)} - bis (5-amino-4-hydroxy-2,7-naphthalene disulfonic acid) tetrasodium salt; Trypanosoma; Bis (toluene azo aminonaphthol sodium disulfonate)

CAS No.: 72-57-1

C34H24N6Na4O14S4=960.81

Grade: ar

Content: ≥ 60.0%

Absorbance: 607nm

Thin layer chromatography test: acceptable

Loss on drying: ≤ 10%

Physicochemical properties: blue gray powder or dark blue to brown black powder, blue in water, slightly soluble in fiber yarn, insoluble in other organic solvents. In case of concentrated sulfuric acid, it is dark green and blue, and after dilution, it is red and blue; It is a brownish gray solution when encountering concentrated nitric acid. Its aqueous solution is red in 10% sulfuric acid; In case of sodium hydroxide, it is red and purple. Melting point: > 300 ° C

Purpose: biochemical research. Biological staining agents, such as virus testing, can be injected into the circulatory system to stain the renal tubules, and various tissues of mammals, lower vertebrates and insects can be stained in vivo

Saving: RT