o-Dianisidine, 98+%
o-Dianisidine, 98+%
o-Dianisidine, 98+%
Thermo Scientific Chemicals

o-Dianisidine, 98+%

CAS: 119-90-4 | C14H16N2O2 | 244.294 g/mol
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Catalog number A17150.06
also known as A17150-06
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5 g
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Price (USD)
35.65
Special offer
Online exclusive
Ends: 30-Jun-2026
41.50
Save 5.85 (14%)
Each
Chemical Identifiers
CAS119-90-4
IUPAC Name3,3'-dimethoxy-[1,1'-biphenyl]-4,4'-diamine
Molecular FormulaC14H16N2O2
InChI KeyJRBJSXQPQWSCCF-UHFFFAOYSA-N
SMILESCOC1=CC(=CC=C1N)C1=CC=C(N)C(OC)=C1
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SpecificationsSpecification SheetSpecification Sheet
CommentMay darken on storage
Identification (FTIR)Conforms
Melting Point (clear melt)134-140?C
Appearance (Color)Purple or pink to brown
FormCrystals or powder or crystalline powder
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o-Dianisidine is used as a redox indicator. It is used as an intermediate for the preparation of azo dyes, pigments and o-dianisidine diisocyanate, which finds application in adhesives, polyurethane elastomers and resins. It is also used in various industries like leather, paper, plastics, rubber, and textiles. It acts as a reagent to detect metals, thiocyanates, and nitrites.

This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

Applications
o-Dianisidine is used as a redox indicator. It is used as an intermediate for the preparation of azo dyes, pigments and o-dianisidine diisocyanate, which finds application in adhesives, polyurethane elastomers and resins. It is also used in various industries like leather, paper, plastics, rubber, and textiles. It acts as a reagent to detect metals, thiocyanates, and nitrites.

Solubility
Soluble in alcohol, benzene, ether, chloroform, acetone, most organic solvents and lipids. Slightly soluble in water.

Notes
Incompatible with strong oxidizing agents.
WARNING: Cancer – www.P65Warnings.ca.gov
RUO – Research Use Only

General References:

  1. Redox indicator.
  2. Perju, E.; Cozan, V.; Marin, L.; Bruma, M. Semiflexible thermotropic polyazomethines based on o-dianisidine mesogenic core. Liq. Cryst. 2015, 42 (9), 1309-1319.
  3. Sundaram, S.; Jagannathan, M.; Kadir, M. R. A.; Palanivel, S.; Hadibarata, T.; Yusoff, A. R. M. A new electro-generated o-dianisidine derivative stabilized MWCNT-modified GCE for low potential gallic acid detection. RSC Adv. 2015, 5 (57), 45996-46006.