Certificate of Analysis

 

Product Name: GR231118 TFA
Catalog Number: M25544
CAS Number: 158859-98-4 (free base)

Physical and Chemical Properties
Formula: C112H171F3N34O26
Molecular Weight: 2466.76
Storage: Powder          -20°C   3 years ;  4°C   2 years
In solvent       -80°C   6 months ;  -20°C   1 month
Analytical Data
QC Standard: ≥99.0%
H-NMR: Consistent with structure
Product Information
Description: GR231118 TFA, an analogue of the C-terminus of neuropeptide Y, is a potent, competitive and relative seletive antagonist at human neuropeptide YY receptor with a pKi of 10.4. GR231118 a potent agonist at the human neuropeptide YY4 receptor (pEC50=8.6; pKi=9.6) and a weak agonist at the human and rat neuropeptide Y Y2 and Y5 receptors. GR231118 also has high affinity for the mouse neuropeptide YY6 receptor (pKi= 8.8).
   
Stability and Solubility Advice: Information concerning product stability, particularly in solution, has rarely been reported and in most cases we can only offer a general guide.
We recommend that stock solutions, once prepared, are stored aliquoted in tightly sealed vials and used within 1 month. Avoid repeated freeze and thaw cycles. Storage conditions for some special products should refer to their storage details.