Frequently Asked
Common questions about 5-Nitro-1H-pyrazole-3-carboxylic acid
What is 5-Nitro-1H-pyrazole-3-carboxylic acid used for?
5-Nitro-1H-pyrazole-3-carboxylic acid is a carboxylic acid that participates in diverse condensation and coupling reactions used primarily in the pharmaceutical and polymer industries. Key applications include amide bond formation via edc/hobt or hatu coupling in peptide synthesis and salt formation with amines to improve drug crystallinity and stability.
Where can I buy 5-Nitro-1H-pyrazole-3-carboxylic acid in the USA?
ChemContract Research is a trusted USA-based supplier of 5-Nitro-1H-pyrazole-3-carboxylic acid. We offer competitive pricing, fast domestic shipping from our Huntington Beach, California facility, and full quality documentation including Certificates of Analysis (CoA). Request a quote at chemistry@chem-contract.com or call +1 (714) 732-8549.
What purity levels are available for 5-Nitro-1H-pyrazole-3-carboxylic acid?
ChemContract Research supplies 5-Nitro-1H-pyrazole-3-carboxylic acid in multiple purity grades: ≥95% standard grade, ≥97% high-purity grade, and ≥99% ultra-high-purity grade depending on application requirements. We can also provide custom purity grades through our synthesis capabilities. Contact us for specific purity information and CoA documentation.
Can ChemContract synthesize 5-Nitro-1H-pyrazole-3-carboxylic acid in custom quantities?
Yes. ChemContract Research offers custom synthesis services for 5-Nitro-1H-pyrazole-3-carboxylic acid from milligram to multi-kilogram scale. Our cGMP-compliant facilities and experienced chemists can accommodate custom specifications, packaging requirements, and delivery timelines. Contact our team to discuss your project.
What coupling reagents work best with 5-Nitro-1H-pyrazole-3-carboxylic acid?
For amide bond formation from the carboxylic acid in 5-Nitro-1H-pyrazole-3-carboxylic acid, HATU/DIPEA is recommended for peptide coupling (high yield, low epimerization). EDC/HOBt is a cost-effective alternative for non-peptide amides. T3P (propylphosphonic acid anhydride) offers excellent atom economy with easy workup. For ester formation, DCC/DMAP (Steglich conditions) or Mitsunobu conditions are standard.
How should I store 5-Nitro-1H-pyrazole-3-carboxylic acid?
Store at room temperature in a tightly sealed container. Protect from moisture and strong bases. Always consult the compound-specific Safety Data Sheet (SDS) provided with your order for detailed storage requirements. ChemContract Research includes handling and storage documentation with every shipment.
What is the CAS number of 5-Nitro-1H-pyrazole-3-carboxylic acid?
The CAS Registry Number for 5-Nitro-1H-pyrazole-3-carboxylic acid is 198348-89-9. This unique identifier is used worldwide to reference this specific compound in chemical databases, regulatory filings, and scientific literature. ChemContract Research supplies this compound with full quality documentation. Contact us at chemistry@chem-contract.com for availability and pricing.
