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ChemicalBook >> CAS DataBase List >> 3,3'-Diaminobenzidine

3,3'-Diaminobenzidine

3,3'-Diaminobenzidine  price.
  • $6 - $40174.8
  • Product name: 3,3'-Diaminobenzidine
  • CAS: 91-95-2
  • MF: C12H14N4
  • MW: 214.27
  • EINECS:202-110-6
  • MDL Number:MFCD00007725
  • Synonyms:TIMTEC-BB SBB008427;3,3μ,4,4μ-Biphenyltetramine, 3,3μ,4,4μ-Tetraaminobiphenyl, DAB;1,1'-Biphenyl-3,3',4,4'-tetrakisamine;3,3',4,4'-[1,1'-Biphenyl]tetraamine;3,3',4,4'-Biphenyltetraamine;3,3'-Diaminobenzidine,99%;3,3′-Diaminobenzidine,3,3′,4,4′-Biphenyltetramine, 3,3′,4,4′-Tetraaminobiphenyl, DAB;3.3'-Diaminobenzidine 250mg [91-95-2]
85 prices
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  • Manufactureraablocks
  • Product numberAA0033EP
  • Product description3,3-Diaminobenzidine 98%
  • Packaging25g
  • Price$40
  • Updated2026-05-28
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  • Manufactureraablocks
  • Product numberAA0033EP
  • Product description3,3-Diaminobenzidine 98%
  • Packaging500g
  • Price$579
  • Updated2026-05-28
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  • Manufactureraablocks
  • Product numberAA0033EP
  • Product description3,3-Diaminobenzidine ≥99%
  • Packaging5g
  • Price$22
  • Updated2026-05-28
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  • Manufactureraablocks
  • Product numberAA0033EP
  • Product description3,3-Diaminobenzidine 98%
  • Packaging1g
  • Price$8
  • Updated2026-05-28
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  • ManufacturerAHH
  • Product numberMT-07722
  • Product description3,3'-Diaminobenzidine 99%
  • Packaging250g
  • Price$715
  • Updated2021-12-16
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  • ManufacturerAHH
  • Product numberMT-07722
  • Product description3,3'-Diaminobenzidine 97%
  • Packaging250g
  • Price$715
  • Updated2026-05-25
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  • ManufacturerAHH
  • Product numberMT-07722
  • Product description3,3'-Diaminobenzidine 97%
  • Packaging250g
  • Price$715
  • Updated2026-05-26
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  • ManufacturerAK Scientific
  • Product numberJ91380
  • Product description3,3'-Diaminobenzidine 95%
  • Packaging100g
  • Price$195
  • Updated2026-06-04
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  • ManufacturerAK Scientific
  • Product numberK676
  • Product description3,3'-Diaminobenzidine >98%(HPLC)
  • Packaging100g
  • Price$268
  • Updated2026-06-04
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  • ManufacturerAK Scientific
  • Product numberJ91380
  • Product description3,3'-Diaminobenzidine 95%
  • Packaging1g
  • Price$12
  • Updated2026-06-04
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  • ManufacturerAK Scientific
  • Product numberK676
  • Product description3,3'-Diaminobenzidine >98%(HPLC)
  • Packaging1g
  • Price$16
  • Updated2026-06-04
  • Buy
  • ManufacturerAK Scientific
  • Product numberJ91380
  • Product description3,3'-Diaminobenzidine 95%
  • Packaging5g
  • Price$23
  • Updated2026-06-04
  • Buy
  • ManufacturerAK Scientific
  • Product numberK676
  • Product description3,3'-Diaminobenzidine >98%(HPLC)
  • Packaging5g
  • Price$30
  • Updated2026-06-04
  • Buy
  • ManufacturerAK Scientific
  • Product numberJ91380
  • Product description3,3'-Diaminobenzidine 95%
  • Packaging25g
  • Price$66
  • Updated2026-06-04
  • Buy
  • ManufacturerAK Scientific
  • Product numberK676
  • Product description3,3'-Diaminobenzidine
  • Packaging25g
  • Price$114
  • Updated2021-12-16
  • Buy
  • ManufacturerAK Scientific
  • Product numberK676
  • Product description3,3'-Diaminobenzidine >98%(HPLC)
  • Packaging25g
  • Price$91
  • Updated2026-06-04
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Manufacturer Product number Product description Packaging Price Updated Buy
aablocks AA0033EP 3,3-Diaminobenzidine 98% 25g $40 2026-05-28 Buy
aablocks AA0033EP 3,3-Diaminobenzidine 98% 500g $579 2026-05-28 Buy
aablocks AA0033EP 3,3-Diaminobenzidine ≥99% 5g $22 2026-05-28 Buy
aablocks AA0033EP 3,3-Diaminobenzidine 98% 1g $8 2026-05-28 Buy
AHH MT-07722 3,3'-Diaminobenzidine 99% 250g $715 2021-12-16 Buy
AHH MT-07722 3,3'-Diaminobenzidine 97% 250g $715 2026-05-25 Buy
AHH MT-07722 3,3'-Diaminobenzidine 97% 250g $715 2026-05-26 Buy
AK Scientific J91380 3,3'-Diaminobenzidine 95% 100g $195 2026-06-04 Buy
AK Scientific K676 3,3'-Diaminobenzidine >98%(HPLC) 100g $268 2026-06-04 Buy
AK Scientific J91380 3,3'-Diaminobenzidine 95% 1g $12 2026-06-04 Buy
AK Scientific K676 3,3'-Diaminobenzidine >98%(HPLC) 1g $16 2026-06-04 Buy
AK Scientific J91380 3,3'-Diaminobenzidine 95% 5g $23 2026-06-04 Buy
AK Scientific K676 3,3'-Diaminobenzidine >98%(HPLC) 5g $30 2026-06-04 Buy
AK Scientific J91380 3,3'-Diaminobenzidine 95% 25g $66 2026-06-04 Buy
AK Scientific K676 3,3'-Diaminobenzidine 25g $114 2021-12-16 Buy
AK Scientific K676 3,3'-Diaminobenzidine >98%(HPLC) 25g $91 2026-06-04 Buy

Properties

Melting point :175-177 °C(lit.)
Boiling point :344.41°C (rough estimate)
Density :1.1726 (rough estimate)
refractive index :1.5000 (estimate)
Flash point :12 °C
storage temp. :room temp
solubility :0.55g/l
pka :4.39±0.10(Predicted)
form :tablet
color :Crystals from MeOH
PH :7 (1g/l, H2O, 20℃)
Water Solubility :0.55 g/L (20 ºC)
Sensitive :Light Sensitive
BRN :1212988
Stability :Moisture and light sensitive. Incompatible with strong oxidizing agents.
Major Application :diagnostic assay manufacturing
hematology
histology InChI :1S/C12H14N4/c13-9-3-1-7(5-11(9)15)8-2-4-10(14)12(16)6-8/h1-6H,13-16H2
InChIKey :HSTOKWSFWGCZMH-UHFFFAOYSA-N
SMILES :NC1=C(N)C=CC(C2=CC(N)=C(N)C=C2)=C1
CAS DataBase Reference :91-95-2(CAS DataBase Reference)
NIST Chemistry Reference :
EPA Substance Registry System :


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
H302 Harmful if swallowed Acute toxicity,oral Category 4 Warning P264, P270, P301+P312, P330, P501
H319 Causes serious eye irritation Serious eye damage/eye irritation Category 2A Warning P264, P280, P305+P351+P338,P337+P313P
H341 Suspected of causing genetic defects Germ cell mutagenicity Category 2 Warning P201,P202, P281, P308+P313, P405,P501
H350 May cause cancer Carcinogenicity Category 1A, 1B Danger
Precautionary statements:
P202 Do not handle until all safety precautions have been read and understood.
P264 Wash hands thoroughly after handling.
P264 Wash skin thouroughly after handling.
P270 Do not eat, drink or smoke when using this product.
P301+P312 IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.
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

3,3'-Diaminobenzidine (DAB) is a precursor to polybenzimidazole. DAB is frequently used in the immunohistochemical staining of nucleic acids and proteins. It can also be used to detect fingerprints in blood because that it can be oxidized by hydrogen peroxide in the presence of hemoglobin to give a dark-brown color. It can be prepared by treating 3, 3’-dichlorobenzidine with ammonia in the presence of copper catalyst at high temperature and pressure.

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