The Pure o-Tolidine by Dinâmica, available at LojaLab, is an aromatic diamine also known as 3,3'-dimethylbenzidine. It acts as a chromogenic reagent in oxidation reactions, producing colored species that can be measured by colorimetric methods. It was historically used for residual-chlorine determination.
Characteristics
- Aromatic diamine belonging to the substituted-benzidine family
- Also known as 3,3'-dimethylbenzidine or ortho-tolidine
- Appears as white-to-reddish crystals or crystalline/light-tan powder
Applications
- Historical colorimetric methods for residual chlorine when explicitly specified by the procedure
- Oxidation studies and development of chromogenic responses
- Preparation of analytical reagents in validated protocols
- Chemical research involving aromatic amines and dye intermediates.
Technical Specifications
- Product: Pure o-Tolidine
- Brand: Dinâmica Química
- Synonym: 3,3'-Dimethylbenzidine
- CAS number: 119-93-7
- Chemical formula: C14H16N2
- Molar mass: 212.29 g/mol
- Available quantities: 50 g, 100 g.
Technical Data
| Physical state | Crystals or crystalline powder |
| Color | White to reddish or light tan |
| Melting point | Approximately 129 °C |
| Chemical class | Aromatic diamine |
Frequently Asked Questions
What is Pure o-Tolidine used for?
The main applications of Pure o-Tolidine include historical colorimetric methods for residual chlorine when explicitly specified by the procedure; oxidation studies and development of chromogenic responses.
What are the main characteristics of Pure o-Tolidine?
The characteristics listed for Pure o-Tolidine include aromatic diamine belonging to the substituted-benzidine family; also known as 3,3'-dimethylbenzidine or ortho-tolidine.
How should Pure o-Tolidine be selected for a laboratory application?
Selection of Pure o-Tolidine should consider the grade, presentation, method requirements, and technical specifications described on this page.
What quantities of Pure o-Tolidine are available?
Pure o-Tolidine is available in 100 g and 50 g. For other quantities, recurring purchases, or larger requirements, contact the sales team to check availability and request a quotation.
How can companies and institutions purchase Pure o-Tolidine and request a formal quotation?
Companies, laboratories, educational institutions, and research organizations can purchase Pure o-Tolidine directly from LojaLab. For recurring purchases, internal approval processes, research funding, public procurement, or formal quotation requirements, contact the sales team.
Professional Use and Safety Guidance
This product is intended for professional use in scientific research, laboratory analysis, education, and compatible industrial applications.
Each product has its own handling, storage, and disposal requirements. Before use, consult the corresponding SDS and follow the manufacturer's instructions and the safety procedures adopted by the institution.
LojaLab provides guidance on product selection and provenance; defining the use protocol and verifying suitability for the final application are the responsibility of the purchasing professional or institution.
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