Felypressin

Base Information

• Chemical Name: Felypressin
• CAS No.: 56-59-7
• Molecular Formula: C46H65N13O11S2
• Molecular Weight: 1040.22
• European Community (EC) Number: 200-282-7
• ChEMBL ID: CHEMBL3185126
• DSSTox Substance ID: DTXSID6048599
• Metabolomics Workbench ID: 61195
• NCI Thesaurus Code: C81496
• Nikkaji Number: J4.571C
• Pharos Ligand ID: RAVUBPBT4UZ3
• Wikidata: Q5442706
• Wikipedia: Felypressin
• Mol file: 56-59-7.mol

Synonyms:Felypressin;Lysine Vasopressin, Phenylalanine;Octapressin;Octopressin;Phelypressin;Phenylalanine Lysine Vasopressin;Phenylalanyl-Lysyl Vasopressin;PLV-2;Vasopressin, Phenylalanine Lysine;Vasopressin, Phenylalanyl Lysyl;Vasopressin, Phenylalanyl-Lysyl

Chemical Property of Felypressin

Chemical Property:

• Vapor Pressure: 0mmHg at 25°C
• Melting Point: 254-257 °C
• Refractive Index: 1.574
• Boiling Point: 1571.3oC at 760 mmHg
• PKA: 12.82±0.70(Predicted)
• Flash Point: 904.1oC
• PSA: 455.92000
• Density: 1.288g/cm3
• LogP: 1.83050
• Storage Temp.: Keep in dark place,Inert atmosphere,Store in freezer, under -20°C
• Solubility.: Freely soluble in water, practically insoluble in acetone and ethanol (96 per cent). It dissolves in dilute solutions of alkali hydroxides.
• XLogP3: -3.5
• Hydrogen Bond Donor Count: 12
• Hydrogen Bond Acceptor Count: 15
• Rotatable Bond Count: 19
• Exact Mass: 1039.43679229
• Heavy Atom Count: 72
• Complexity: 1920

Purity/Quality:

99% ^*data from raw suppliers

Felypressin European Pharmacopoeia (EP) Reference Standard ^*data from reagent suppliers

Safty Information:

• Pictogram(s): Xi
• Hazard Codes: Xi

MSDS Files:

SDS file from LookChem

Useful:

• Canonical SMILES: C1CC(N(C1)C(=O)C2CSSCC(C(=O)NC(C(=O)NC(C(=O)NC(C(=O)NC(C(=O)N2)CC(=O)N)CCC(=O)N)CC3=CC=CC=C3)CC4=CC=CC=C4)N)C(=O)NC(CCCCN)C(=O)NCC(=O)N
• Isomeric SMILES: C1C[C@H](N(C1)C(=O)[C@@H]2CSSC[C@@H](C(=O)N[C@H](C(=O)N[C@H](C(=O)N[C@H](C(=O)N[C@H](C(=O)N2)CC(=O)N)CCC(=O)N)CC3=CC=CC=C3)CC4=CC=CC=C4)N)C(=O)N[C@@H](CCCCN)C(=O)NCC(=O)N
• Recent ClinicalTrials: Comparison of Articaine and Prilocaine for Extraction of Maxillary Teeth
• Recent NIPH Clinical Trials: Effects of local anesthetics with adrenaline or felypressin on the QTc interval in elderly: a randomized double-blind crossover study.
• Uses: Felypressin(Octapressin) is a vasopressin 1 agonist and a peptide containing eight amino acids including cystine. Felypressin is used as a vasoconstrictor.
• Therapeutic Function: Vasoconstrictor

Refernces

Kinetics of the Exchange of Hydrogen between Phosphine and Water: A Kinetic Estimate of the Acid and Base Strengths of Phosphine

10.1021/ja01640a072

The study investigates the kinetics of hydrogen exchange between phosphine (PH?) and water containing 3% deuterium. The researchers measured the rate of approach to equilibrium by tracking the uptake of deuterium in phosphine. They found that under conditions where diffusion from the gaseous to the liquid phase is not rate-determining, the fraction of exchange follows the McKay rate law. The study involved using various buffer solutions, including those with acids like mandelic, formic, benzoic, acetic, and trimethylacetic acids, to explore acid catalysis. For base catalysis, sodium carbonate-sodium bicarbonate, disodium phosphate-trisodium phosphate buffers, and unbuffered 0.01 M sodium hydroxide were used. The experiments revealed that the reaction is first order with respect to hydronium ion (H?O?) and hydroxyl ion (OH?) concentration, with rate constants of 3.6 liters/mole second and 0.40 liters/mole second at 27°C, respectively. The study also explored the effects of general acid and base catalysis, inert salt concentration, phosphine pressure, and temperature on the exchange rate. The results provided insights into the acid and base properties of phosphine in aqueous solution, with estimates of the base dissociation constant (KB) and acid dissociation constant (KA) of phosphine.

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