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DREADD agonist 21

Alias: DREADD-agonist-21; DREADD agonist 21; DREADD agonist-21
Cat No.:V20245 Purity: ≥98%
DREADD agonist 21 is a potent agonist (EC50=1.7 nM) of the human muscarinic acetylcholine M3 receptor (hM3Dq).
DREADD agonist 21
DREADD agonist 21 Chemical Structure CAS No.: 56296-18-5
Product category: mAChR
This product is for research use only, not for human use. We do not sell to patients.
Size Price Stock Qty
5mg
10mg
25mg
50mg
100mg
Other Sizes

Other Forms of DREADD agonist 21:

  • DREADD agonist 21 dihydrochloride
Official Supplier of:
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Top Publications Citing lnvivochem Products
Purity & Quality Control Documentation

Purity: ≥98%

Product Description
DREADD agonist 21 is a potent agonist (EC50=1.7 nM) of the human muscarinic acetylcholine M3 receptor (hM3Dq).
Biological Activity I Assay Protocols (From Reference)
Targets
hM3Dq ( EC50 = 1.7 nM )
ln Vitro
DREADD Agonist 21 is a potent human muscarinic cardiac M3 receptor agonist (hM3Dq) agonist (EC50=1.7 nM) that does not activate the human M3 receptor (hM3). In addition to being inactive against hM3, DREADD agonist 21 is a potent full agonist of hM3Dq (EC50=1.7 nM). It is only 3.5-fold more selective for hM3Dq than H1 and 40-fold more selective than 5HT2A. 100 times more selective for 5HT2C than α1A. DREADD Agonist 21 has high affinity for 5HT2A and 5HT2C serotonin uptake, α1A initiator uptake and H1 histamine uptake, with Ki values of 66, 170, 280 and 6 nM respectively. [1]. DREADD agonist 21 potently activates hM1Dq, hM3Dq and hM4Di. DREADD agonist 21 binds hM1, hM4, hM1Dq, and hM4Di with pKi of 5.97, 5.44, 7.20, and 6.75, respectively. DREADD agonist 21 effectively activated hM3Dq in Chinese mouse hamster or (CHO) cells transfected cells in vitro, with a pEC50 of 8.48±0.05. DREADD Agonist 21 is a highly selective and potent muscarinic DREADD agonist (pEC50 for hM1Dq=6.54 and hM4Di=7.77 in pERK assay) [2].
ln Vivo
DREADD agonist 21 (0.3, 1.0 and 3.0 mg/kg; ip) activates neuronal hM3Dq in mice[2]. DREADD agonist 21 has excellent bioavailability, pharmacokinetic properties and brain penetration. 21 (0.1, 1 and 10 mg/kg; ip) exhibits 95.1% rabbit protein binding and 95% brain protein binding in mice [2].
References

[1]. The first structure-activity relationship studies for designer receptors exclusively activated by designer drugs. ACS Chem Neurosci. 2015 Mar 18;6(3):476-84.

[2]. DREADD Agonist 21 Is an Effective Agonist for Muscarinic-Based DREADDs in Vitro and in Vivo. ACS Pharmacol Transl Sci. 2018 Sep 14;1(1):61-72.

These protocols are for reference only. InvivoChem does not independently validate these methods.
Physicochemical Properties
Molecular Formula
C17H18N4
Molecular Weight
278.35
Exact Mass
278.15
Elemental Analysis
C, 73.35; H, 6.52; N, 20.13
CAS #
56296-18-5
Related CAS #
DREADD agonist 21 dihydrochloride; 2250025-92-2
Appearance
Solid powder
SMILES
C1CN(CCN1)C2=NC3=CC=CC=C3NC4=CC=CC=C42
InChi Key
JCBYXNSOLUVGTF-UHFFFAOYSA-N
InChi Code
InChI=1S/C17H18N4/c1-2-6-14-13(5-1)17(21-11-9-18-10-12-21)20-16-8-4-3-7-15(16)19-14/h1-8,18-19H,9-12H2
Chemical Name
6-piperazin-1-yl-11H-benzo[b][1,4]benzodiazepine
Synonyms
DREADD-agonist-21; DREADD agonist 21; DREADD agonist-21
HS Tariff Code
2934.99.9001
Storage

Powder      -20°C    3 years

                     4°C     2 years

In solvent   -80°C    6 months

                  -20°C    1 month

Shipping Condition
Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs)
Solubility Data
Solubility (In Vitro)
DMSO: ~56 mg/mL (~201.2 mM)
Ethanol: ~56 mg/mL
Solubility (In Vivo)
Solubility in Formulation 1: ≥ 2.5 mg/mL (8.98 mM) (saturation unknown) in 10% DMSO + 40% PEG300 + 5% Tween80 + 45% Saline (add these co-solvents sequentially from left to right, and one by one), clear solution.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 25.0 mg/mL clear DMSO stock solution to 400 μL PEG300 and mix evenly; then add 50 μL Tween-80 to the above solution and mix evenly; then add 450 μL normal saline to adjust the volume to 1 mL.
Preparation of saline: Dissolve 0.9 g of sodium chloride in 100 mL ddH₂ O to obtain a clear solution.

Solubility in Formulation 2: ≥ 2.5 mg/mL (8.98 mM) (saturation unknown) in 10% DMSO + 90% (20% SBE-β-CD in Saline) (add these co-solvents sequentially from left to right, and one by one), clear solution.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 25.0 mg/mL clear DMSO stock solution to 900 μL of 20% SBE-β-CD physiological saline solution and mix evenly.
Preparation of 20% SBE-β-CD in Saline (4°C,1 week): Dissolve 2 g SBE-β-CD in 10 mL saline to obtain a clear solution.

 (Please use freshly prepared in vivo formulations for optimal results.)
Preparing Stock Solutions 1 mg 5 mg 10 mg
1 mM 3.5926 mL 17.9630 mL 35.9260 mL
5 mM 0.7185 mL 3.5926 mL 7.1852 mL
10 mM 0.3593 mL 1.7963 mL 3.5926 mL

*Note: Please select an appropriate solvent for the preparation of stock solution based on your experiment needs. For most products, DMSO can be used for preparing stock solutions (e.g. 5 mM, 10 mM, or 20 mM concentration); some products with high aqueous solubility may be dissolved in water directly. Solubility information is available at the above Solubility Data section. Once the stock solution is prepared, aliquot it to routine usage volumes and store at -20°C or -80°C. Avoid repeated freeze and thaw cycles.

Calculator

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What is the mass of compound required to make a 10 mM stock solution in 5 ml of DMSO given that the molecular weight of the compound is 350.26 g/mol?
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Dilution Calculator allows you to calculate how to dilute a stock solution of known concentrations. For example, you may Enter C1, C2 & V2 to calculate V1, as detailed below:

What volume of a given 10 mM stock solution is required to make 25 ml of a 25 μM solution?
Using the equation C1V1 = C2V2, where C1=10 mM, C2=25 μM, V2=25 ml and V1 is the unknown:
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  • The answer of 62.5 μL (0.1 ml) appears in the Volume (Start) box
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Molecular Weight Calculator allows you to calculate the molar mass and elemental composition of a compound, as detailed below:

Note: Chemical formula is case sensitive: C12H18N3O4  c12h18n3o4
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In vivo Formulation Calculator (Clear solution)
Step 1: Enter information below (Recommended: An additional animal to make allowance for loss during the experiment)
Step 2: Enter in vivo formulation (This is only a calculator, not the exact formulation for a specific product. Please contact us first if there is no in vivo formulation in the solubility section.)
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Calculation results

Working concentration mg/mL;

Method for preparing DMSO stock solution mg drug pre-dissolved in μL DMSO (stock solution concentration mg/mL). Please contact us first if the concentration exceeds the DMSO solubility of the batch of drug.

Method for preparing in vivo formulation:Take μL DMSO stock solution, next add μL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH2O,mix and clarify.

(1) Please be sure that the solution is clear before the addition of next solvent. Dissolution methods like vortex, ultrasound or warming and heat may be used to aid dissolving.
             (2) Be sure to add the solvent(s) in order.

Biological Data
  • Binding of muscarinic DREADD ligands to DREADDs and wildtype receptors. ACS Pharmacol Transl Sci . 2018 Sep 14;1(1):61-72.
  • Signaling at hM4 and hM4Di mediated by muscarinic DREADD ligands. ACS Pharmacol Transl Sci . 2018 Sep 14;1(1):61-72.
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