1-Methyl-1H-indazole-4-boronic acid hydrochloride
1-Methyl-1H-indazole-4-boronic acid hydrochloride (CAS: 1257527-53-9) is a heteroaryl boronic acid derivative with the empirical formula C8H10BClN2O2 and a molecular weight of 212.44 g/mol. This compound serves as a valuable building block in organic synthesis. It is particularly useful for introducing the 1-methyl-1H-indazole-4-yl moiety into target molecules, commonly employed in the development of novel pharmaceutical agents and complex organic structures.

Organic Synthesis Intermediate
Utilised as a key intermediate in the synthesis of complex organic molecules, particularly in the pharmaceutical industry. Its boronic acid functionality allows for versatile coupling reactions.
Medicinal Chemistry Research
A valuable reagent for medicinal chemists designing and synthesising novel drug candidates. The indazole core is a common feature in many biologically active compounds.
Material Science Applications
Can be employed in the development of new materials where the indazole scaffold offers specific electronic or structural properties.
| Molecular weight | 212.44 |
|---|---|
| Empirical formula | C8H10BClN2O2 |
| Storage temperature | 2-8°C |
| Melting point | 118-123 °C |

Hazard statements
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
| Water hazard class (WGK, DE) | 3 |
|---|---|
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36/37/38 |
| Safety statements (S) | 26 |
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-Methyl-1H-indazole-4-boronic acid hydrochloride used for?
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1-Methyl-1H-indazole-4-boronic acid hydrochloride (CAS: 1257527-53-9) is primarily used as an intermediate in organic synthesis, especially in medicinal chemistry for the development of pharmaceutical agents and other complex organic structures.
What is the CAS number and formula for 1-Methyl-1H-indazole-4-boronic acid hydrochloride?
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The CAS number is 1257527-53-9 and the empirical formula is C8H10BClN2O2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 1-Methyl-1H-indazole-4-boronic acid hydrochloride as a research or technical grade chemical. We do not represent it as meeting USP, BP, or EP pharmacopoeial standards.
How should 1-Methyl-1H-indazole-4-boronic acid hydrochloride be handled?
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This compound is a Warning substance (GHS07) and is classified with hazard statements H315 (Causes skin irritation), H319 (Causes serious eye irritation), and H335 (May cause respiratory irritation). Handle with appropriate personal protective equipment, ensuring good ventilation. Avoid breathing dust/fume/gas/mist/vapours/spray. Wear protective gloves/eye protection/face protection. In case of contact with eyes, rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. If inhaled, move to fresh air and keep at rest in a position comfortable for breathing. Consult the Safety Data Sheet for full details.
How is 1-Methyl-1H-indazole-4-boronic acid hydrochloride shipped and exported?
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Tech Serve Solutions is a specialist global supplier and exporter of fine chemicals. We ensure compliant packaging and shipping for international export according to relevant regulations.
How can I request a sample or quote for 1-Methyl-1H-indazole-4-boronic acid hydrochloride?
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Please contact our sales team via the website or direct email to request a sample or obtain a quotation for 1-Methyl-1H-indazole-4-boronic acid hydrochloride.
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