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3,3'-Diaminobenzidine is used as a pharmaceutical intermediate. 3,3'-Diaminobenzidine is used as peroxidase substrate and a reagent for spectrophotometric determination of selenium. DAB is used for the immunohistochemical staining of nucleic acids and proteins. As a dark brown dye, was used as an antibody-specific stain to identify the paired antibodies in breast tissue. It may be used for the synthesis of a useful, linear, Schiff-base coordination polymer.
| Items | Specification | Result |
| Appearance | Off-white to brown powder | Light brown powder |
| Assay | ≥96% | 99% |
| Purity | ≥97% | 98.2% |
| Loss on drying | ≤0.5% | 0.05% |
| Product parameters | |
| Cas number: | 91-95-2 |
| Appearance: | Off-white to brown powder |
| Purity: | 97%min |
| Package details: | 1kg/foil bag;25kg/drum |
| Brand: | Fortunachem |

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