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o-Dianisidine, 98+%
Description
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.
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.

Specifications
Specifications
Melting Point | 134°C to 138°C |
Flash Point | 206°C (402°F) |
Assay Percent Range | >98% |
Quantity | 5 g |
Beilstein | 1879884 |
Merck Index | 14,2991 |
Solubility Information | Soluble in alcohol,benzene,ether,chloroform,acetone,most organic solvents and lipids. Slightly soluble in water. |
Formula Weight | 244.3 |
Percent Purity | ≥98% |
Chemical Name or Material | o-Dianisidine |
Safety and Handling
Hazard Category | H302-H350 |
Hazard Statement | GHS H Statement H350-H302 |
Precautionary Statement | P201-P202-P264b-P270-P281-P301+P312-P308+P313-P330-P501c |
EINECSNumber | 204-355-4 |
RTECSNumber | DD0875000 |
TSCA | Yes |
Recommended Storage | Ambient temperatures |
RUO – Research Use Only
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