## Abstract

This article provides a comprehensive overview of 2,1,3-Benzothiadiazole (CAS No. 273-13-2), an organic compound with significant applications in various industries. The alternative names and synonyms of this compound are discussed, along with its chemical structure, properties, uses, and safety considerations. The article aims to provide a detailed understanding of 2,1,3-Benzothiadiazole and its derivatives, highlighting its importance in the chemical and pharmaceutical sectors.

## Introduction

2,1,3-Benzothiadiazole, with the CAS number 273-13-2, is a versatile organic compound that finds extensive use in various industries. This article delves into the alternative names and synonyms of 2,1,3-Benzothiadiazole, exploring its chemical structure, properties, uses, and safety aspects. By understanding these aspects, readers can gain a comprehensive insight into the significance of this compound in the chemical and pharmaceutical sectors.

### Alternative Names and Synonyms

2,1,3-Benzothiadiazole is known by several alternative names and synonyms, which include benzothiadiazole, 1,2,3-benzothiadiazole, and 2,1,3-benzothiadiazole. These names reflect the chemical structure and properties of the compound. The alternative names are used in different contexts, such as in scientific literature, industry standards, and regulatory documents.

### Chemical Structure

The chemical structure of 2,1,3-Benzothiadiazole consists of a benzene ring fused with a thiadiazole ring. The benzene ring is a hexagonal ring of carbon atoms, while the thiadiazole ring is a five-membered ring containing one sulfur atom and two nitrogen atoms. This unique structure contributes to the compound's properties and its various applications.

### Physical Properties

2,1,3-Benzothiadiazole is a crystalline solid with a melting point of approximately 234°C. It is sparingly soluble in water but more soluble in organic solvents such as acetone, ethanol, and chloroform. These physical properties are important for the handling and processing of the compound in industrial applications.

### Chemical Properties

The chemical properties of 2,1,3-Benzothiadiazole are characterized by its reactivity towards various reagents. It can undergo substitution reactions, addition reactions, and condensation reactions. These chemical properties make it a valuable intermediate in the synthesis of various organic compounds, including pharmaceuticals, agrochemicals, and dyes.

### Uses

2,1,3-Benzothiadiazole finds extensive use in various industries due to its unique properties. Some of the primary applications include:

1. **Pharmaceuticals**: It is used as a starting material for the synthesis of several pharmaceuticals, including anticonvulsants, anti-inflammatory agents, and analgesics.
2. **Agrochemicals**: It is used in the synthesis of herbicides, fungicides, and insecticides.
3. **Dyes and Pigments**: It is used in the production of dyes and pigments for textiles, plastics, and paints.

### Safety Considerations

The handling and use of 2,1,3-Benzothiadiazole require careful consideration of safety measures. The compound is toxic if inhaled, ingested, or absorbed through the skin. It can cause irritation to the eyes, skin, and respiratory system. Adequate personal protective equipment (PPE) and proper ventilation are essential when working with this compound.

## Conclusion

2,1,3-Benzothiadiazole (CAS No. 273-13-2) is a versatile organic compound with significant applications in various industries. Its alternative names and synonyms, chemical structure, properties, uses, and safety considerations are discussed in this article. Understanding these aspects is crucial for its safe and effective use in the chemical and pharmaceutical sectors.

### Keywords

2,1,3-Benzothiadiazole, CAS No. 273-13-2, alternative names, chemical structure, properties, uses, safety considerations, pharmaceuticals, agrochemicals, dyes and pigments.