Frequently Asked
Common questions about 4-tert-Butylcalix[4]arenetetraacetic acid tetraethyl ester 97%
What is 4-tert-Butylcalix[4]arenetetraacetic acid tetraethyl ester 97% used for?
4-tert-Butylcalix[4]arenetetraacetic acid tetraethyl ester 97% 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 prodrug development to mask carboxylic acids and improve membrane permeability.
Where can I buy 4-tert-Butylcalix[4]arenetetraacetic acid tetraethyl ester 97% in the USA?
ChemContract Research is a trusted USA-based supplier of 4-tert-Butylcalix[4]arenetetraacetic acid tetraethyl ester 97%. 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 4-tert-Butylcalix[4]arenetetraacetic acid tetraethyl ester 97%?
ChemContract Research supplies 4-tert-Butylcalix[4]arenetetraacetic acid tetraethyl ester 97% 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 4-tert-Butylcalix[4]arenetetraacetic acid tetraethyl ester 97% in custom quantities?
Yes. ChemContract Research offers custom synthesis services for 4-tert-Butylcalix[4]arenetetraacetic acid tetraethyl ester 97% 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 4-tert-Butylcalix[4]arenetetraacetic acid tetraethyl ester 97%?
For amide bond formation from the carboxylic acid in 4-tert-Butylcalix[4]arenetetraacetic acid tetraethyl ester 97%, 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 4-tert-Butylcalix[4]arenetetraacetic acid tetraethyl ester 97%?
Store at room temperature in a tightly sealed container. Protect from moisture and strong bases. Store at room temperature in a tightly sealed container away from heat and open flame. 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 4-tert-Butylcalix[4]arenetetraacetic acid tetraethyl ester 97%?
The CAS Registry Number for 4-tert-Butylcalix[4]arenetetraacetic acid tetraethyl ester 97% is 97600-39-0. 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.
