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CAS No 72-57-1 , Direct Blue 14

  • Name: Direct Blue 14
  • Synonyms: Trypan Blue solution; Trypan Blue;C.I. 23850; Niagara Blue 3B; Tetrasodium 3,3'-[(3,3'-dimethyl[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[5-amino-4-hydroxynaphthalene-2,7-disulphonate];Direct Blue 14; C.I. Direct Blue 14; trypan blue (dye cont. ca. 60%); Direct Blue 14 (C.I.); Direct Blue 14;
  • CAS Registry Number:
  • Melting Point: 280 ºC
  • Water Solubility: 10 G/L (25 ºC)
  • Safety Statements: R45
  • Hazard Symbols: T: Toxic;
  • EINECS: 200-786-7
  • Molecular Weight: 960.79
  • InChI: InChI=1/C34H28N6O14S4.4Na/c1-15-7-17(3-5-25(15)37-39-31-27(57(49,50)51)11-19-9-21(55(43,44)45)13-23(35)29(19)33(31)41)18-4-6-26(16(2)8-18)38-40-32-28(58(52,53)54)12-20-10-22(56(46,47)48)14-24(36)30(20)34(32)42;;;;/h3-14,41-42H,35-36H2,1-2H3,(H,43,44,45)(H,46,47,48)(H,49,50,51)(H,52,53,54);;;;/q;4*+1/p-4/b39-37+,40-38+;;;;
  • Risk Statements: S45;S53
  • Molecular Formula: C34H24N6Na4O14S4
  • Molecular Structure:CAS No:72-57-1 Direct Blue 14

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72-57-1 TRYPAN BLUE

  • Details as following: Catalog No.: FT-0690008 CAS No.: 72-57-1 NAME: TRYPAN BLUE Synonyms: irect Blue 14 IUPAC Name: tetrasodium;(3Z)-5-amino-3-[[4-[4-[(2Z)-2-(8-amino-1-oxo-3,6-disulfonatonaphthalen-2-ylidene)hydrazinyl]-3-methylphenyl]-2-methylphen...
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72-57-1 TRYPAN BLUE (C.I. 23850)

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References of Direct Blue 14
Title: Trypan Blue
CAS Registry Number: 72-57-1
CAS Name: 3,3￠-[(3,3￠-Dimethyl[1,1￠-biphenyl]-4,4￠-diyl)bis(azo)]bis[5-amino-4-hydroxy-2,7-naphthalenedisulfonic acid] tetrasodium salt
Synonyms: C.I. Direct Blue 14; C.I. 23850; 3,3￠-[(3,3￠-dimethyl-4,4￠-biphenylene)bis(azo)]bis(5-amino-4-hydroxy-2,7-naphthalenedisulfonic acid) tetrasodium salt; tetrasodium 3,3￠-[(3,3￠-dimethyl-4,4￠-biphenylene)bis(azo)]bis(5-amino-4-hydroxy-2,7-naphthalenedisulfonate); sodium ditolyl-diazobis-8-amino-1-naphthol-3,6-disulfonate; Benzamine Blue; Diamine Blue; Benzo Blue; Congo Blue; Dianil Blue; Naphthylamine Blue; Niagara Blue
Molecular Formula: C34H24N6Na4O14S4
Molecular Weight: 960.81
Percent Composition: C 42.50%, H 2.52%, N 8.75%, Na 9.57%, O 23.31%, S 13.35%
Literature References: Prepd by coupling diazotized o-tolidine with 5-amino-4-hydroxy-2,7-naphthalenedisulfonic acid in sodium carbonate soln: Lewers, Lowy, Ind. Eng. Chem. 17, 1289-1290 (1925); Colour Index vol. 4 (3rd ed., 1971) p 4198. Toxicity study: Anderson et al., Proc. Soc. Exp. Biol. Med. 31, 825 (1934). Review of teratogenicity studies: R. L. Cahen, Clin. Pharmacol. Ther. 5, 480 (1964).
Properties: Bluish-gray powder. Sol in water forming a deep blue soln with violet tinge. Almost insol in alcohol. LD100 i.v. in rats: 300 mg/kg (Anderson).
Toxicity data: LD100 i.v. in rats: 300 mg/kg (Anderson)
Use: Biological stain.