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ChemicalBook >> CAS DataBase List >> Direct Black 38

Direct Black 38

Direct Black 38 price.
  • $16 - $2517.67
  • Product name: Direct Black 38
  • CAS: 1937-37-7
  • MF: C34H28N9NaO7S2
  • MW: 761.76
  • EINECS:217-710-3
  • MDL Number:MFCD00066363
  • Synonyms:chloramineblackert ;chloramineblackex ;chloramineblackexr ;chloramineblackxo ;chloraminecarbonblacks ;chloraminecarbonblacksj ;chloraminecarbonblacksn ;CHLORAZOL BLACK, FOR MICROSCOPY
Price46 Properties Safety Information Description
46 prices
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Brand
  • aablocks
  • AK Scientific
  • American Custom Chemicals Corporation
  • Arctom
  • Biosynth
  • Cayman Chemical
  • Chem-Impex
  • ChemScene
  • Sigma-Aldrich
  • TCI Chemical
  • Thermo Scientific Chemicals
  • TRC
  • Usbiological
Package
  • 500g
  • 1000g
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  • 10mM*1mLinDMSO(Solution)
  • 1g
  • 5g
  • 25g
  • 100g
  • 10G
  • 50G
  • 10mM*1mLinDMSO(Solid+Solvent)
  • Manufactureraablocks
  • Product numberAA0039S3
  • Product description4-Amino-3-((4'-((2,4-diaminophenyl)diazenyl)-[1,1'-biphenyl]-4-yl)diazenyl)-5-hydroxy-6-(phenyldiazenyl)naphthalene-2,7-disulfonic acid, sodium salt
  • Packaging1g
  • Price$18
  • Updated2026-05-28
  • Buy
  • Manufactureraablocks
  • Product numberAA0039S3
  • Product description4-Amino-3-((4'-((2,4-diaminophenyl)diazenyl)-[1,1'-biphenyl]-4-yl)diazenyl)-5-hydroxy-6-(phenyldiazenyl)naphthalene-2,7-disulfonic acid, sodium salt
  • Packaging5g
  • Price$18
  • Updated2026-05-28
  • Buy
  • Manufactureraablocks
  • Product numberAA0039S3
  • Product description4-Amino-3-((4'-((2,4-diaminophenyl)diazenyl)-[1,1'-biphenyl]-4-yl)diazenyl)-5-hydroxy-6-(phenyldiazenyl)naphthalene-2,7-disulfonic acid, sodium salt
  • Packaging25g
  • Price$54
  • Updated2026-05-28
  • Buy
  • Manufactureraablocks
  • Product numberAA0039S3
  • Product description4-Amino-3-((4'-((2,4-diaminophenyl)diazenyl)-[1,1'-biphenyl]-4-yl)diazenyl)-5-hydroxy-6-(phenyldiazenyl)naphthalene-2,7-disulfonic acid, sodium salt
  • Packaging100g
  • Price$118
  • Updated2026-05-28
  • Buy
  • ManufacturerAK Scientific
  • Product numberT353
  • Product descriptionChlorazol Black
  • Packaging100g
  • Price$134
  • Updated2026-06-04
  • Buy
  • ManufacturerAK Scientific
  • Product numberT353
  • Product descriptionChlorazol Black
  • Packaging1g
  • Price$16
  • Updated2026-06-04
  • Buy
  • ManufacturerAK Scientific
  • Product numberT353
  • Product descriptionChlorazol Black
  • Packaging25g
  • Price$48
  • Updated2026-06-04
  • Buy
  • ManufacturerAK Scientific
  • Product numberT353
  • Product descriptionChlorazol Black
  • Packaging5g
  • Price$23
  • Updated2026-06-04
  • Buy
  • ManufacturerAmerican Custom Chemicals Corporation
  • Product numberAPI0002419
  • Product descriptionCHLORAZOL BLACK E 95.00%
  • Packaging10G
  • Price$1114.52
  • Updated2021-12-16
  • Buy
  • ManufacturerAmerican Custom Chemicals Corporation
  • Product numberAPI0002419
  • Product descriptionCHLORAZOL BLACK E 95.00%
  • Packaging50G
  • Price$2517.67
  • Updated2021-12-16
  • Buy
  • ManufacturerArctom
  • Product numberHY-D0256
  • Product descriptionDirect Black 38
  • Packaging1g
  • Price$29
  • Updated2026-05-26
  • Buy
  • ManufacturerArctom
  • Product numberHY-D0256
  • Product descriptionDirect Black 38
  • Packaging10mM*1mLinDMSO(Solid+Solvent)
  • Price$30
  • Updated2026-05-26
  • Buy
  • ManufacturerArctom
  • Product numberHY-D0256
  • Product descriptionDirect Black 38
  • Packaging10mM*1mLinDMSO(Solution)
  • Price$32
  • Updated2026-05-26
  • Buy
  • ManufacturerArctom
  • Product numberHY-D0256
  • Product descriptionDirect Black 38
  • Packaging5g
  • Price$48
  • Updated2026-05-26
  • Buy
  • ManufacturerArctom
  • Product numberHY-D0256
  • Product descriptionDirect Black 38
  • Packaging10g
  • Price$72
  • Updated2026-05-26
  • Buy
  • ManufacturerArctom
  • Product numberHY-D0256
  • Product descriptionDirect Black 38
  • Packaging25g
  • Price$114
  • Updated2026-05-26
  • Buy
Manufacturer Product number Product description Packaging Price Updated Buy
aablocks AA0039S3 4-Amino-3-((4'-((2,4-diaminophenyl)diazenyl)-[1,1'-biphenyl]-4-yl)diazenyl)-5-hydroxy-6-(phenyldiazenyl)naphthalene-2,7-disulfonic acid, sodium salt 1g $18 2026-05-28 Buy
aablocks AA0039S3 4-Amino-3-((4'-((2,4-diaminophenyl)diazenyl)-[1,1'-biphenyl]-4-yl)diazenyl)-5-hydroxy-6-(phenyldiazenyl)naphthalene-2,7-disulfonic acid, sodium salt 5g $18 2026-05-28 Buy
aablocks AA0039S3 4-Amino-3-((4'-((2,4-diaminophenyl)diazenyl)-[1,1'-biphenyl]-4-yl)diazenyl)-5-hydroxy-6-(phenyldiazenyl)naphthalene-2,7-disulfonic acid, sodium salt 25g $54 2026-05-28 Buy
aablocks AA0039S3 4-Amino-3-((4'-((2,4-diaminophenyl)diazenyl)-[1,1'-biphenyl]-4-yl)diazenyl)-5-hydroxy-6-(phenyldiazenyl)naphthalene-2,7-disulfonic acid, sodium salt 100g $118 2026-05-28 Buy
AK Scientific T353 Chlorazol Black 100g $134 2026-06-04 Buy
AK Scientific T353 Chlorazol Black 1g $16 2026-06-04 Buy
AK Scientific T353 Chlorazol Black 25g $48 2026-06-04 Buy
AK Scientific T353 Chlorazol Black 5g $23 2026-06-04 Buy
American Custom Chemicals Corporation API0002419 CHLORAZOL BLACK E 95.00% 10G $1114.52 2021-12-16 Buy
American Custom Chemicals Corporation API0002419 CHLORAZOL BLACK E 95.00% 50G $2517.67 2021-12-16 Buy
Arctom HY-D0256 Direct Black 38 1g $29 2026-05-26 Buy
Arctom HY-D0256 Direct Black 38 10mM*1mLinDMSO(Solid+Solvent) $30 2026-05-26 Buy
Arctom HY-D0256 Direct Black 38 10mM*1mLinDMSO(Solution) $32 2026-05-26 Buy
Arctom HY-D0256 Direct Black 38 5g $48 2026-05-26 Buy
Arctom HY-D0256 Direct Black 38 10g $72 2026-05-26 Buy
Arctom HY-D0256 Direct Black 38 25g $114 2026-05-26 Buy
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Properties

Melting point :109-110°C
storage temp. :Amber Vial, Refrigerator, Under inert atmosphere
solubility :DMSO (Slightly), Methanol (Slightly, Heated), Water (Slightly)
Colour Index :30235
form :Crystalline Powder
color :Black
Water Solubility :H2O: 1mg/mL
Stability :Light Sensitive
Major Application :diagnostic assay manufacturing
hematology
histology InChIKey :XRPLBRIHZGVJIC-UVHCWRHYSA-L
SMILES :[Na+].[Na+].Nc1ccc(\N=N\c2ccc(cc2)-c3ccc(cc3)\N=N\c4c(N)c5c(O)c(\N=N\c6ccccc6)c(cc5cc4S([O-])(=O)=O)S([O-])(=O)=O)c(N)c1
CAS DataBase Reference :1937-37-7(CAS DataBase Reference)
EPA Substance Registry System :C.I. Direct Black 38 (1937-37-7)

Safety Information

Symbol(GHS): Exclamation Mark (GHS07)Health Hazard (GHS08)
Signal word: Danger
Hazard statements:
Code Hazard statements Hazard class Category Signal word Pictogram P-Codes
H319 Causes serious eye irritation Serious eye damage/eye irritation Category 2A Warning P264, P280, P305+P351+P338,P337+P313P
H350 May cause cancer Carcinogenicity Category 1A, 1B Danger
Precautionary statements:
P201 Obtain special instructions before use.
P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P308+P313 IF exposed or concerned: Get medical advice/attention.

Description

Chlorazol Black has been used to monitor the infection of mycorrhizalAllium porrumin plant roots.It has also been used for the staining of copepods.

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Suppliers and manufacturers

J & K SCIENTIFIC LTD. Meryer (Shanghai) Chemical Technology Co., Ltd. 3B Pharmachem (Wuhan) International Co.,Ltd. Alfa Aesar TCI (Shanghai) Development Co., Ltd. Beijing HwrkChemical Technology Co., Ltd Energy Chemical Winchem Industrial Co. Ltd Tianjin heowns Biochemical Technology Co., Ltd. Sinopharm Chemical Reagent Co,Ltd.