产品名称

苯红紫4B

CAS NO

992-59-6

中文别名

Direct red 2

英文名称

1-Naphthalenesulfonicacid,3,3'-[(3,3'-dimethyl[1,1'-biphenyl]-4,4'-diyl)bis(2,1-diazenediyl)]bis[4-amino-,sodium salt (1:2)

英文别名

1-Naphthalenesulfonicacid, 3,3'-[(3,3'-dimethyl[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[4-amino-,disodium salt (9CI); C.I. Direct Red 2 (6CI); C.I. Direct Red 2, disodium salt(8CI); Amanil Purpurine 4B; Atul Direct Red 4B; Azamin 4B; Azocard Red 4B;Bencidal Purple 4B; Benzanil Purpurine 4B; Benzopurpurin 4B; Benzopurpurin B;Benzopurpurine 4B; Benzopurpurine 4BKX; Benzopurpurine 4BX; Brasilamina Red 4B;C.I. 23500; Calcomine Red 4BX; Chrome Leather Red 4B; Cotton Red 4B; DiacottonBenzopurpurine 4B; Diamine Purpurine 4B; Diaphtamine Purpurine 4B; DiazaminePurpurine 4B; Diazine Red 4B; Diazol Purpurine 4B; Diphenyl Red 4B; DiphenylRed 4BS; Direct Purpurine 4B; Direct Purpurine M 4B; Direct Red 2; Direct Red4A; Direct Red 4B; Direct Red DCB; Direct Scarlet 4BE; Eclipse Red; Erie Benzo4BP; Erie Red 4B; Fast Scarlet; Hispamin Red 4B; Kayaku Benzopurpurine 4B;Mitsui Benzopurpurine 4BX; Paper Red 4BS; Phenamine Purpurine 4B; Purpurin 4B;Purpurine 4B; Red 4B; Tertrodirect Red 4B

分子式

C₃₄H₂₈N₆O₆S₂.2Na

分子量

724.72

EINECS

213-594-3

熔点

ca. 290oC (decomposes)

沸点

°Cat760mmHg

毒性

产品名称： 直接大红4BE(刚果红) 国际索引名：Direct Red 2（23500） 外观：红色均匀粉末 强度：100% 水份%：≤5.0 水不溶物%：≤1.0 细度通过80目筛余量%：≤5.0 外观为红色粉末。溶于水（呈红至棕光红色）和溶纤素，也溶于乙醇和丙酮，不溶于其他有机溶剂。遇浓硫酸呈红光蓝色，稀释后呈浅绿光蓝色，有沉淀；遇浓硝酸呈蓝色溶液后转为黄棕色。水溶液遇浓盐酸呈紫黑色沉淀，遇浓氢氧化钠液呈橙棕色沉淀，遇10％氢氧化钠呈红色溶液。 主要用于纤维素纤维的染色与印花。