Potassium 1-methyl-1H-pyrazole-5-trifluoroborate

CAS 1258323-45-3C4H5BF3KN2Chemical Synthesis

Potassium 1-methyl-1H-pyrazole-5-trifluoroborate (CAS: 1258323-45-3, Formula: C4H5BF3KN2) is a heteroaryl trifluoroborate salt. With a molecular weight of 188.00 g/mol, this compound serves as a valuable building block in organic synthesis. Its applications primarily lie in chemical synthesis, particularly in reactions involving heteroaryl motifs and organometallic chemistry, offering a stable and reactive source for cross-coupling reactions.

IUPAC: Potassium trifluoro(1-methyl-1H-pyrazol-5-yl)borate

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Potassium 1-methyl-1H-pyrazole-5-trifluoroborate (C4H5BF3KN2) — chemical structure, CAS 1258323-45-3; Chemistry, fine chemical supplied by Tech Serve Solutions

Chemical SynthesisOrganometallic ReagentsTrifluoroborate Salts

01 /Applications

Organic Synthesis

Utilised as a reagent in diverse organic transformations, especially in the construction of complex molecules. It is a key component in cross-coupling reactions, enabling the formation of new carbon-carbon and carbon-heteroatom bonds.

Heteroaryl Chemistry

Enables the introduction of the 1-methyl-1H-pyrazol-5-yl moiety into various organic frameworks. This is crucial for the synthesis of pharmaceuticals and agrochemicals where such heterocyclic structures are prevalent.

Organometallic Reagents

Functions as a stable and easily handled organometallic reagent for Suzuki-Miyaura cross-coupling reactions and related transformations. The trifluoroborate group provides enhanced stability compared to corresponding boronic acids.

02 /Properties

Molecular weight	188.00
Empirical formula	C4H5BF3KN2
Assay	95%
Melting point	230-275 °C

03 /Safety & handling

GHS hazard pictogram: Harmful / irritant (GHS07) — Harmful / irritant

Warning

Hazard statements

H302Harmful if swallowed
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)	Xn
Risk statements (R)	22-36/37/38
Safety statements (S)	26

Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.

04 /Identifiers & registry

CAS number

1258323-45-3

MDL number

MFCD19620590

05 /Quality & supply

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.

06 /Frequently asked questions

What is Potassium 1-methyl-1H-pyrazole-5-trifluoroborate used for?

Potassium 1-methyl-1H-pyrazole-5-trifluoroborate is primarily used in organic synthesis as a building block, particularly in cross-coupling reactions for the introduction of the 1-methyl-1H-pyrazol-5-yl group into organic molecules. It is a valuable reagent in heteroaryl chemistry and organometallic applications.

What is the CAS number and chemical formula?

The CAS number for Potassium 1-methyl-1H-pyrazole-5-trifluoroborate is 1258323-45-3, and its chemical formula is C4H5BF3KN2.

What grade and purity does Tech Serve Solutions supply?

Tech Serve Solutions supplies Potassium 1-methyl-1H-pyrazole-5-trifluoroborate with an assay of 95%. This product is not represented as USP, BP, or EP grade.

What are the safety considerations when handling this chemical?

This compound is classified as hazardous. It can be harmful if swallowed (H302), causes skin irritation (H315), causes serious eye irritation (H319), and may cause respiratory irritation (H335). Always handle with appropriate personal protective equipment in a well-ventilated area.

Is this chemical available for export?

Yes, Tech Serve Solutions is a global supplier and exporter of fine chemicals and laboratory reagents.

How can I request a sample or quote?

To request a sample or a quotation, please contact our sales team through the website or by calling us directly. Please specify the product name and CAS number.