- Patent Title: Versatile, concise and convenient process for the commercial scale preparation of highest pure 3,3′5,5′-tetramethylbenzidine (TMB) and its salts, a chromogenic substrate used in staining procedures in immunohistochemistry and visualizing reagent in enzyme-linked immunosorbent assays
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Application No.: US16654814Application Date: 2019-10-16
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Publication No.: US11028044B2Publication Date: 2021-06-08
- Inventor: Sekar Reddy Alla , Rahul R. Alla , Rupini Alla
- Applicant: Sekar Reddy Alla , Rahul R. Alla , Rupini Alla
- Applicant Address: US MA Burlington; US MA Burlington; US MI Royal Oak
- Assignee: Sekar Reddy Alla,Rahul R. Alla,Rupini Alla
- Current Assignee: Sekar Reddy Alla,Rahul R. Alla,Rupini Alla
- Current Assignee Address: US MA Burlington; US MA Burlington; US MI Royal Oak
- Main IPC: C07C245/08
- IPC: C07C245/08
Abstract:
The present invention relates to a process for the preparation of 3,3′,5,5′-Tetramethylbenzidine represented by formula I, and processes for the preparation of intermediates used in the preparation of 3,3′,5,5′-Tetramethylbenzidine.
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