Astressin 2B

Astressin 2B is a potent and selective corticotropin-releasing factor receptor 2 (CRF2) antagonist, with the IC50 values of 1.3 nM and > 500 nM for CRF2 and CRF1, respectively. Astressin 2B antagonizes CRF2-mediated inhibition of gastric emptying[1][2][3].


Cat. No.: EX-A14540	Purity: >98%

	Chemical structure of Astressin 2B

For research only, Do not use for Human!

Size	Unit Price (US$)	Stock
5mg	1060	In-stock
10mg	1570	In-stock
25mg	2900	In-stock
5g	get quote	In-stock

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CAS No.	681260-70-8
Purity	>98%
Formula	C183H307N49O53
Mol Weight	4041.6921
Color	White to off-white
State	Solid
Solubility	soluble in DMSO
Shelf Life	>2 years if stored properly
Storage	Powder -20℃, 1 year; In solvent -80℃, 6 months; -20℃, 1 month;
Shipping	Shipped under ambient temperature as non-hazardous chemical. This product is stable enough for a few weeks during ordinary shipping and time spent in Customs.

Reference:	[1]. Rivier J, et al. Potent and long-acting corticotropin releasing factor (CRF) receptor 2 selective peptide competitive antagonists. J Med Chem. 2002;45(21):4737-4747. [2]. Hoare SR, et al. Peptide ligand binding properties of the corticotropin-releasing factor (CRF) type 2 receptor: pharmacology of endogenously expressed receptors, G-protein-coupling sensitivity and determinants of CRF2 receptor selectivity. Peptides. 2005;26(3):457-470. [3]. Henry B, et al. The effect of lateral septum corticotropin-releasing factor receptor 2 activation on anxiety is modulated by stress. J Neurosci. 2006;26(36):9142-9152.
CoA	CoA of Astressin 2B

Smiles:	CCCC[C@@H](C(=O)N[C@@H]([C@@H](C)CC)C(=O)N[C@@H](CCC(=O)O)C(=O)N[C@@H]([C@@H](C)CC)C(=O)N[C@@H](CCC(=O)O)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CCC(=O)N)C(=O)N[C@@H](CCC(=O)O)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CCC(=O)O)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CCC(=O)N)C(=O)


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