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Chemical product profile

HONGKUN / PRODUCT DIRECTORY

3-(Difluoromethyl)-1-methyl-1H-pyrazole-4-carboxylic acid | CAS 176969-34-9

The difluoromethyl pyrazole acid supplies an acyl fragment for documented fungicidal carboxamide chemistry and also appears in metabolite-reference catalogues, making exact acid identity and intended grade distinct procurement decisions.

CAS176969-34-9
Molecular formulaC6H6F2N2O2
Molecular weight176.12 g/mol

Product overview

A CHF2 group at C3 and a carboxylic acid at C4 define this N-methylpyrazole building block. The free acid supplies an acyl fragment for constructing pyrazolecarboxamides in fungicide intermediate chemistry. It is also used in analytical work concerning the fluxapyroxad metabolite M700F001. Synthesis and quantitative analysis call for different qualification documents: process use focuses on acid assay, related esters and positional impurities, while analytical use requires assigned content and appropriate traceability. State the intended use with the complete difluoromethyl substitution pattern when requesting the material.

Chemical identity

Chemical name
3-(Difluoromethyl)-1-methyl-1H-pyrazole-4-carboxylic acid
CAS number
176969-34-9
Molecular formula
C6H6F2N2O2
Molecular weight
176.12 g/mol

Application context

Pyrazolecarboxamide research uses the acid-derived carbonyl to attach different amine fragments and investigate antifungal compounds. The same chemical identity also serves in residue-analysis work involving fluxapyroxad metabolite M700F001. For synthesis, define free-acid assay, positional-isomer controls and relevant ester carry-over. For quantitative analysis, request an assigned content value and traceability appropriate to the intended method.

Chemistry and synthetic role

Amide formation uses the C4 carboxylic acid functionality. CHF2 at C3 is a different substituent from CF3, and the N-methyl group fixes the intended nitrogen substitution pattern.

Quality review

Verify CHF2 and ring positions

Use identity evidence that distinguishes difluoromethyl from trifluoromethyl and confirms the C3/C4 arrangement.

Measure free-acid content

Clarify acid assay and any residual ester assessment; chromatographic area need not equal usable acid content.

Qualify analytical use separately

For metabolite work, agree content assignment and traceability rather than assuming a synthesis COA establishes reference-standard suitability.

Preparing a specification

State the free acid, CAS 176969-34-9, and synthesis or metabolite-analysis use. Specify assay basis, positional-isomer and relevant ester limits; add reference-material documentation requirements only when needed for quantitative analysis.

Packaging and storage

Confirm packaging format, net weight and transport arrangements for the selected grade, order quantity and destination. Request the applicable SDS and label to establish storage and handling conditions.

Documentation

Request the proposed specification, batch COA and current SDS. Confirm availability of the identity data and analytical methods relevant to the checks above; documents depend on the selected manufacturer and grade.

Procurement questions

Is CHF2 interchangeable with CF3 here?

No. They define different compounds and downstream fragments.

What does the designation M700F001 refer to?

It identifies this compound in the context of fluxapyroxad metabolite analysis. Specify the analytical reference requirements when ordering for that purpose.

Can synthesis grade automatically serve as a standard?

No. Assigned content and traceability need independent qualification.

Technical sources
  1. PubChem CID 18983008 — identity property recordNCBI / PubChem
  2. 3-(Difluoromethyl)-1-methyl-1H-pyrazole-4-carboxylic acid D4949Tokyo Chemical Industry
  3. Synthesis, Antifungal Activity and Structure-Activity Relationships of Novel 3-(Difluoromethyl)-1-methyl-1H-pyrazole-4-carboxylic Acid AmidesMolecules / Du et al.
  4. 3-(Difluoromethyl)-1-methyl-1H-pyrazole-4-carboxylic acid TRC-D445373LGC Standards / TRC