1-Boc-pyrazole
1-Boc-pyrazole (CAS: 219580-32-2, Formula: C8H12N2O2, Molar Mass: 168.19 g/mol) is a heterocyclic organic compound. This pyrazole derivative, featuring a tert-butoxycarbonyl protecting group, serves as a valuable building block in organic synthesis. Its structure facilitates the introduction of the pyrazole moiety into more complex molecules, finding utility in pharmaceutical research and chemical development.
- IUPAC
- 1-(tert-Butoxycarbonyl)pyrazole,tert-Butyl 1H-pyrazole-1-carboxylate
- Synonyms
- 1-(tert-Butoxycarbonyl)pyrazoletert-Butyl 1H-pyrazole-1-carboxylate

Synthetic Organic Chemistry
1-Boc-pyrazole is employed as a versatile intermediate for the synthesis of various organic compounds. The Boc protecting group allows for controlled reactions and selective functionalization of the pyrazole ring.
Pharmaceutical Intermediate
This compound is utilised in the development of potential drug candidates and pharmaceutical ingredients. Its heterocyclic nature makes it a key component in the construction of biologically active molecules.
Research and Development
1-Boc-pyrazole is a useful reagent in academic and industrial research laboratories for exploring novel chemical transformations and discovering new compounds.
| Molecular weight | 168.19 |
|---|---|
| Empirical formula | C8H12N2O2 |
| Assay | 97% |
| Boiling point | 161 °C/760 mmHg |
| Density | 1.036 g/mL at 25 °C |
| Refractive index | n20/D 1.472 |

Hazard statements
- H302Harmful if swallowed
| Protective equipment | Eyeshields, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Transport (UN / ADR) | NA 1993 / PGIII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 22 |
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-Boc-pyrazole used for?
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1-Boc-pyrazole is primarily used as a building block in synthetic organic chemistry, particularly in the pharmaceutical industry for the development of new drug candidates and other complex organic molecules.
What is the CAS number and formula for 1-Boc-pyrazole?
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The CAS number for 1-Boc-pyrazole is 219580-32-2, and its molecular formula is C8H12N2O2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 1-Boc-pyrazole with an assay of 97%. We do not represent this product as USP, BP, EP, or pharmacopoeia grade.
How should 1-Boc-pyrazole be handled safely?
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1-Boc-pyrazole is classified as harmful if swallowed (H302). When handling, use appropriate personal protective equipment, including eyeshields, gloves, and a suitable respirator. Ensure adequate ventilation.
How is 1-Boc-pyrazole packed and shipped?
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1-Boc-pyrazole is typically packed in compliance with transport regulations and can be exported globally by Tech Serve Solutions.
How can I request a sample or quote for 1-Boc-pyrazole?
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To request a sample or a quote for 1-Boc-pyrazole, please contact the TSS sales department via our website or direct inquiry channels.
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