Multiple choice

Which among the following is used in immunohistochemical staining of nucleic acids and proteins?

  1. 3,3'-Diaminobenzidine

  2. Di-tert-butyl peroxide

  3. Diacetylene

  4. Diazinon

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A Correct answer
Explanation

3,3'-Diaminobenzidine (DAB) is an organic compound. This derivative of benzidine is a precursor to polybenzimidazole fiber. As its water-soluble tetrahydrochloride, it has been used in immunohistochemical staining of nucleic acids and proteins.