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1H-Pyrazole-3-carboxylic acid

CAS 1621-91-6C4H4N2O2Chemical Synthesis

1H-Pyrazole-3-carboxylic acid (CAS: 1621-91-6; Formula: C4H4N2O2; MW: 112.09 g/mol) is a heterocyclic organic compound. It serves as a valuable building block in chemical synthesis, particularly within the realm of pyrazole chemistry. This compound is frequently employed in the development of novel molecules for pharmaceutical and agrochemical research, owing to the versatile reactivity of the pyrazole ring system. Available at a purity of 97%.

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1H-Pyrazole-3-carboxylic acid (C4H4N2O2) — chemical structure, CAS 1621-91-6; Chemistry, fine chemical supplied by Tech Serve Solutions
Building BlocksC3 to C5Chemical SynthesisHeterocyclic Building BlocksPyrazoles
01 /Applications

Pharmaceutical Intermediate

Utilised as a key structural component in the synthesis of potential drug candidates. Its pyrazole core is present in various biologically active molecules.

Agrochemical Research

Serves as a precursor in the development of new pesticides and herbicides, leveraging the heterocyclic scaffold for targeted biological activity.

Organic Synthesis Reagent

A versatile building block for constructing complex organic molecules. It enables the introduction of the pyrazole moiety into larger structures.

Material Science

Investigated for its potential incorporation into functional materials due to the electronic properties of the pyrazole ring.

02 /Properties
Molecular weight112.09
Empirical formulaC4H4N2O2
Assay97%
Melting point204-213 °C
03 /Safety & handling
GHS hazard pictogram: Harmful / irritant (GHS07)
Harmful / irritant
Warning

Hazard statements

  • H315Causes skin irritation
Protective equipmentdust mask type N95 (US), Eyeshields, Gloves
Hazard codes (EU)Xi
Risk statements (R)38

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

04 /Identifiers & registry
CAS number
1621-91-6
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 1H-Pyrazole-3-carboxylic acid used for?

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1H-Pyrazole-3-carboxylic acid is primarily used as a building block in organic synthesis, particularly for pharmaceutical and agrochemical research. It is also explored in material science.

What is the CAS number and formula for 1H-Pyrazole-3-carboxylic acid?

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The CAS number is 1621-91-6 and the empirical formula is C4H4N2O2.

What grade and purity does Tech Serve Solutions supply?

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Tech Serve Solutions supplies 1H-Pyrazole-3-carboxylic acid with an assay of 97%. This is a technical/research grade product, and TSS does not represent it as USP, BP, or EP grade.

How should 1H-Pyrazole-3-carboxylic acid be handled?

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Handle 1H-Pyrazole-3-carboxylic acid with appropriate personal protective equipment, including a dust mask (type N95 US recommended), eyeshields, and gloves. Avoid dust formation and ensure adequate ventilation. It carries a Warning signal word and is classified with H315 hazard statement (Causes skin irritation).

Is 1H-Pyrazole-3-carboxylic acid a controlled substance?

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Based on the provided data, there is no indication that 1H-Pyrazole-3-carboxylic acid is a controlled substance.

How is 1H-Pyrazole-3-carboxylic acid packed and shipped?

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Tech Serve Solutions exports fine chemicals globally. Specific packing and shipping details are available upon request and are tailored to meet international shipping regulations and customer requirements.

How can I request a sample or quote for 1H-Pyrazole-3-carboxylic acid?

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To request a sample or a quote, please contact the Tech Serve Solutions sales team through the website or by phone, providing the product name and CAS number (1621-91-6).

Need 1H-Pyrazole-3-carboxylic acid in a specific grade or volume?