1-(Methylsulfonyl)-1H-benzotriazole
1-(Methylsulfonyl)-1H-benzotriazole (CAS: 37073-15-7), with the molecular formula C7H7N3O2S and a molecular weight of 197.21 g/mol, is a specialised reagent used in organic synthesis. It is particularly valuable for its role in C-S bond formation and C-X bond formation (non-halogen) reactions. This compound serves as a synthetic reagent, enabling the construction of complex molecules in various chemical processes.
- IUPAC
- 1-Methanesulfonyl-1H-benzotriazole

C-S Bond Formation
This compound acts as an effective reagent in the formation of carbon-sulfur bonds. Its structure facilitates reactions leading to the synthesis of organosulfur compounds.
C-X Bond Formation (Non-Halogen)
It is employed in creating carbon-heteroatom bonds, specifically where the heteroatom is not a halogen. This expands its utility in diverse synthetic strategies.
Chemical Synthesis
As a versatile synthetic reagent, 1-(Methylsulfonyl)-1H-benzotriazole is a key component in various organic syntheses. It contributes to the development of new chemical entities and complex molecular architectures.
Synthetic Reagents
This compound is classified as a synthetic reagent, supporting a wide range of chemical transformations and research applications in laboratories.
| Molecular weight | 197.21 |
|---|---|
| Empirical formula | C7H7N3O2S |
| Assay | 95% |
| Application | New Benzotriazole Reagents |
| Melting point | 108-112 °C(lit.) |


Hazard statements
- H302Harmful if swallowed
- H318Causes serious eye damage
Precautionary statements
- P280Wear protective gloves, clothing and eye/face protection
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 22-41 |
| Safety statements (S) | 26-36/39 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is 1-(Methylsulfonyl)-1H-benzotriazole used for?
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1-(Methylsulfonyl)-1H-benzotriazole is primarily used as a reagent in organic synthesis, particularly for C-S bond formation and C-X bond formation (non-halogen) reactions. It serves as a valuable synthetic reagent in chemical research and development.
What are the CAS number and molecular formula for this compound?
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The CAS number for 1-(Methylsulfonyl)-1H-benzotriazole is 37073-15-7, and its molecular formula is C7H7N3O2S.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 1-(Methylsulfonyl)-1H-benzotriazole with an assay of 95%. This product is intended for research and technical use and is not represented as USP, BP, EP, or any other pharmacopoeia grade.
How should 1-(Methylsulfonyl)-1H-benzotriazole be handled safely?
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This compound is classified as harmful if swallowed and causes serious eye damage (H302, H318). When handling, wear a dust mask type N95, eyeshields, and gloves. Ensure good ventilation and avoid dust formation. In case of eye contact, rinse cautiously with water for several minutes and seek immediate medical attention.
How is this chemical shipped and exported?
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Tech Serve Solutions is a specialist global supplier and exporter of fine chemicals. This product is carefully packaged and prepared for international shipment in compliance with all relevant regulations.
How can I request a sample or quote?
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To request a sample or a quote for 1-(Methylsulfonyl)-1H-benzotriazole, please use the contact form on our website or reach out to our sales department directly. Our team will be pleased to assist you.
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