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CAS No 1937-37-7 , Direct Black 38

  • Name: Direct Black 38
  • Synonyms: Direct Black 38; Disodium 4-amino-3-[[4'-[(2,4-diaminophenyl)azo][1,1'-biphenyl]-4-yl]azo]-5-hydroxy-6-(phenylazo)naphthalene-2,7-disulphonate;C.I. 30235; Chlorazol Black E;
  • CAS Registry Number:
  • Melting Point: 109-110°C
  • Density: 1.61g/cm3
  • Refractive index: 1.768
  • Safety Statements: R45;R63
  • Hazard Symbols: T: Toxic;
  • EINECS: 217-710-3
  • Molecular Weight: 781.72
  • InChI: InChI=1/C34H27N9O7S2.2Na/c35-22-10-15-27(26(36)18-22)41-38-24-11-6-19(7-12-24)20-8-13-25(14-9-20)40-42-32-28(51(45,46)47)16-21-17-29(52(48,49)50)33(34(44)30(21)31(32)37)43-39-23-4-2-1-3-5-23;;/h1-18,44H,35-37H2,(H,45,46,47)(H,48,49,50);;/q;2*+1/p-2/b41-38+,42-40?,43-39+;;
  • Risk Statements: S45;S53
  • Molecular Formula: C34H25N9Na2O7S2
  • Molecular Structure:CAS No:1937-37-7 Direct Black 38
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1937-37-7 Chlorazol black e

  • Chlorazol black e
  • Hong kong Frapp's Pharma (Hongkong) Co.,Ltd [Manufacturer]
  • Tel: +852 8130 0917
  • Fax: +852 8130 0927
  • Address: Room 801,Mongkok Harbour Centre,638 Shanghai Street,Mongkok,Kowloon,Hongkang518001 MongkokHONG KONG Mongkok,Hong kong
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1937-37-7 Azo black

  • Azo black
  • Belgium Alkemi [Manufacturer]
  • Tel: +32 9 340 49 49
  • Fax: +32 9 340 49 47
  • Address: Poststraat, 82 B-9160 Lokeren Belgium ,Belgium
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1937-37-7 Direct Black38

  • Direct Black38
  • China Dynastay Colourants Co. Ltd [Manufacturer]
  • Tel: +86 574 27862090
  • Fax: +86 574 27862092
  • Address: 21f, lingqiao square, 31 yaohang street315000 NingboCHINA Ningbo,China
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1937-37-7 disodium 4-amino-3-[[4'-[(2,4-diaminophenyl)azo][1,1'-biphenyl]-4-yl]azo]-5-hydroxy-6-(phenylazo)naphthalene-2,7-disulphonate

  • China Winchem Industrial Co. Ltd. [, Manufacturer, Trading Company]
  • Tel: 86-574-83851061 86-574-87083208
  • Fax: 86-574-87083209
  • Address: Room 905, No.3 Building,East Business Center, 456 Xingning Road, Ningbo City,China ,China
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1937-37-7 disodium 4-amino-3-[[4'-[(2,4-diaminophenyl)azo][1,1'-biphenyl]-4-yl]azo]-5-hydroxy-6-(phenylazo)naphthalene-2,7-disulphonate

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1937-37-7 disodium 4-amino-3-[[4'-[(2,4-diaminophenyl)azo][1,1'-biphenyl]-4-yl]azo]-5-hydroxy-6-(phenylazo)naphthalene-2,7-disulphonate

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1937-37-7 Direct Black 38

  • Direct Black 38
  • China Dynasty Chemicals Co., Ltd. []
  • Fax: +86 574 87317917
  • Address: 21F Lingqiao Square, 31 Yaohang Street, Ningbo, China NINGBO,zhejiangChina
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1937-37-7 disodium 4-amino-3-[[4'-[(2,4-diaminophenyl)azo][1,1'-biphenyl]-4-yl]azo]-5-hydroxy-6-(phenylazo)naphthalene-2,7-disulphonate

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1937-37-7 DIRECT BACK 38

  • China Orichem international Ltd. [Manufacturer]
  • Tel: 86-571-85270505
  • Fax: 86-571-85270303
  • Address: 16/F Flat, 1 Huazhe Plaza,
    Hangzhou, China ,China
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