Shandong Huashang Chemical Co., Ltd.
Product
3-(Difluoromethyl)-1-methyl-1H-pyrazole-4-carboxylic acid
  • Brand:HS
  • Model:25kg/drum
  • Purity:99%
  • Cas:176969-34-9
  • Createtime: 2026-04-14
  • Updatetime: 2026-04-15
Product Details
useage Industrial use
deliveryInfo
appearance solid
Molecular Weight 176.12
aliasen
supplyCapacity 50000MT/Month
harbor Qingdao,China
minorder 1KG
Appearance White to off-white crystalline solid

Shandong Huashang Chemical Co., Ltd. is a high-tech enterprise specializing in the research and development, manufacturing, and sales of fine chemicals. Headquartered in Jinan, Shandong, China, we are committed to delivering high-quality products to our global partners. Currently, over 90% of our products are exported to developed markets, including North America, Europe, Japan, South Korea, and the Middle East.

Basic Information

Product Name: 3-(Difluoromethyl)-1-methyl-1H-pyrazole-4-carboxylic acid
Alias: DFPA; 1H-Pyrazole-4-carboxylic acid, 3-(difluoromethyl)-1-methyl-; PB26850; AFURESERTIB (INN); STL583998; AM85295; 3-difluoromethyl-1-methyl-1H-pyrazol-4-ylcarboxylic acid; UNII-20527OAN56; Z1255391769; Fluxa
CAS No.: 176969-34-9
EINECS No.: 700-093-4
Molecular Formula: C?H?F?N?O?
Molecular Weight: 176.12 g/mol
Classification: Pyrazole carboxylic acid derivative, organic heterocyclic compound, agrochemical intermediate, pharmaceutical intermediate, fine chemical, fungicide intermediate, organic fluoride

Physical & Chemical Properties

Appearance: White to off-white crystalline solid, odorless; stable under normal conditions (25℃, 100 kpa), incompatible with strong oxidizing agents and strong bases
Density: 1.48 g/cm3 (rough estimate); refractive index n??/d 1.485 (estimate)
Melting Point: 200-201℃ (lit.); 198-201℃ (industrial grade)
Boiling Point: 338.9℃ at 760 mmHg; decomposes slightly before boiling
Solubility: Slightly soluble in water; freely soluble in common organic solvents such as ethanol, methanol, acetone and chloroform; soluble in alkaline solutions
Flash Point: 158.8℃; Vapor Pressure: 9.21×10?? mmHg at 25℃
Purity: ≥95.0% (industrial grade); ≥98.0% (HPLC, analytical grade)
Storage Condition: Sealed, room temperature cool and dry place, protect from light; keep container tightly closed; avoid high temperature, moisture and contact with strong oxidizing agents, strong bases

Main Uses

  • Agrochemical Field: As a key intermediate for the synthesis of novel SDHI (succinate dehydrogenase inhibitors) fungicides, it is widely used in the research and production of high-efficiency, low-toxicity fungicides; many marketed fungicides from major global agrochemical manufacturers share its molecular skeleton, making it a high-demand agrochemical intermediate worldwide.
  • Pharmaceutical Field: Serves as an organic intermediate for the synthesis of pharmaceutical active ingredients (APIs), involved in the research and development of drugs related to pyrazole heterocyclic structures; its unique difluoromethyl and carboxylic acid functional groups provide structural support for the synthesis of targeted drugs.
  • Chemical Synthesis & Research Field: Used as an important organic intermediate in fine chemical synthesis, applicable to the preparation of various pyrazole derivatives; used as a biochemical reagent and analytical standard in laboratory research, facilitating the development of synthetic methods and structural modification studies.
  • Other Fields: Applied in the synthesis of functional materials and organic fluorine compounds; used as a raw material for the preparation of pyrazole-based fine chemicals, with broad application prospects in the field of organic synthesis.

Specification Table

Item
Specification
Unit
Remarks
Product Name
3-(Difluoromethyl)-1-methyl-1H-pyrazole-4-carboxylic acid
Abbreviation: DFPA
CAS Number
176969-34-9

Molecular Formula
C?H?F?N?O?

Molecular Weight
176.12
g/mol

Appearance
White to off-white crystalline solid
Odorless; stable under normal conditions
Purity
≥98.0
%
HPLC; industrial grade ≥95.0%
Melting Point
200-201
lit. = literature value; industrial grade 198-201℃