DREADD agonist 21 dihydrochloride is a potent human muscarinic acetylcholine M3 receptors (hM3Dq) agonist (EC₅₀=1.7 nM)^[1].

EC50: 1.7 nM (hM3Dq)^[1]
pKi: 5.97 (hM1), 5.44 (hM4), 7.20 (hM1Dq), and 6.75 (hM4Di)^[2]
Ki: 6 nM (H1 histamine receptor), 66 nM (5HT2A serotonin receptor 5HT2A), 170 nM (5HT2C serotonin receptor), 280 nM (α1A adrenergic receptor)^[1]

DREADD agonist 21 is a potent human muscarinic acetylcholine M3 receptors (hM3Dq) agonist (EC₅₀=1.7 nM) and does not activate human M3 receptor (hM3). In addition to being inactive at hM3, DREADD agonist 21, a potent full agonist of hM3Dq (EC₅₀=1.7 nM), is only 3.5-fold selective for hM3Dq over H1, 40-fold selective over 5HT2A, 100-fold selective over 5HT2C, and 165-fold selective over α1A. DREADD agonist 21 shows high binding affinities to 5HT2A and 5HT2C serotonin receptor, α1A adrenergic receptor, and H1 histamine receptor with K_ivalues of 66, 170, 280, and 6 nM, respectively^[1].
DREADD agonist 21 potently activates hM1Dq, hM3Dq, and hM4Di. DREADD agonist 21 binds to hM1, hM4, hM1Dq and hM4Di receptors with pK_is of 5.97, 5.44, 7.20, and 6.75, respectively. DREADD agonist 21 potently activates hM3Dq in Chinese hamster ovary (CHO) cells transfected cells in vitro with a pEC₅₀of 8.48±0.05. DREADD agonist 21 is a highly selective and potent agonist for muscarinic DREADDs (pEC₅₀for hM1Dq=6.54 and that for hM4Di=7.77 in pERK assays)^[2].

DREADD agonist 21 (0.3, 1.0, and 3.0 mg/kg; i.p.) activates neuronal hM3Dq in mice^[2].
DREADD agonist 21 has excellent bioavailability, pharmacokinetic properties, and brain penetrability. DREADD agonist 21 (0.1, 1, and 10 mg/kg; i.p.) displays 95.1% plasma protein binding and 95% brain protein bounding in mice^[2].

351.27

Solid

C₁₇H₂₀Cl₂N₄

2250025-92-2

Room temperature in continental US; may vary elsewhere.

4°C, stored under nitrogen

*In solvent : -80°C, 6 months; -20°C, 1 month (stored under nitrogen)

DMSO : 200 mg/mL(569.36 mM;ultrasonic and warming and heat to 60℃)

请根据产品在不同溶剂中的溶解度选择合适的溶剂配制储备液；一旦配成溶液，请分装保存，避免反复冻融造成的产品失效。
储备液的保存方式和期限：-80℃, 6 months; -20℃, 1 month (stored under nitrogen)。-80℃ 储存时，请在 6 个月内使用，-20℃ 储存时，请在 1 个月内使用。