FR-194921

FR-194921 Suppliers list
Company Name: TargetMol Chemicals Inc.
Tel: +1-781-999-5354; +1-00000000000
Email: marketing@targetmol.com
Products Intro: Product Name:FR-194921;FR194921;FR 194921
CAS:202646-80-8
Package:100 mg;500 mg Remarks:REAGENT;FOR LABORATORY USE ONLY
Company Name: TargetMol Chemicals Inc.
Tel: 13564774135
Email: marketing@targetmol.com
Products Intro: Product Name:FR-194921
CAS:202646-80-8
Package:25mg;1520USD|100mg;2500USD|50mg;1980USD
Company Name: BOC Sciences  
Tel: 1-631-485-4226; 16314854226
Email: info@bocsci.com
Products Intro: Product Name:FR-194921
CAS:202646-80-8
Purity:>98% Remarks:Reach out to us for more information about custom solutions.
Company Name: Energy Chemical  
Tel: 400-0056266
Email: marketing1@energy-chemical.com
Products Intro: Product Name:FR194921 >=98% (HPLC)
CAS:202646-80-8
Purity:NULL Package:1ea;25mg;5mg Remarks:NULL
Company Name: TargetMol Chemicals Inc.  
Tel: 15002134094
Email: marketing@targetmol.cn
Products Intro: Product Name:FR-194921
CAS:202646-80-8
Package:25mg/RMB 10600;100mg/RMB 17500;50mg/RMB 13800

FR-194921 manufacturers

  • FR-194921
  • FR-194921 pictures
  • $1520.00
  • 2026-04-21
  • CAS:202646-80-8
  • Purity:
  • Supply Ability: 10g
FR-194921 Basic information
Product Name:FR-194921
Synonyms:FR-194921;FR194921 >=98% (HPLC);3(2H)-Pyridazinone, 2-(1-methyl-4-piperidinyl)-6-(2-phenylpyrazolo[1,5-a]pyridin-3-yl)-
CAS:202646-80-8
MF:C23H23N5O
MW:385.46
EINECS:
Product Categories:
Mol File:202646-80-8.mol
FR-194921 Structure
FR-194921 Chemical Properties
density 1.29±0.1 g/cm3(Predicted)
storage temp. 2-8°C
solubility DMSO: 2mg/mL, clear (warmed)
pka8.51±0.10(Predicted)
form Solid
color Off-white to light yellow
InChI1S/C23H23N5O/c1-26-15-12-18(13-16-26)28-21(29)11-10-19(24-28)22-20-9-5-6-14-27(20)25-23(22)17-7-3-2-4-8-17/h2-11,14,18H,12-13,15-16H2,1H3
InChIKeyYHDRUTMZCJZJAL-UHFFFAOYSA-N
SMILESCN(CC1)CCC1N2N=C(C=CC2=O)C3=C4N(N=C3C5=CC=CC=C5)C=CC=C4
Safety Information
WGK Germany WGK 3
Storage Class11 - Combustible Solids
MSDS Information
FR-194921 Usage And Synthesis
UsesFR194921 is a potent, selective and orally active and cross the blood-brain barrier Adenosine A1 antagonist with Ki value of 6.6, 5400 nM for A1, A2A, respectively. FR194921 shows cognitive-enhancing and anxiolytic activity[1][2].
Biological ActivityFR194921 is a blood-brain barrier-permeable A1R adenosine receptor antagonist. The measured Ki values of FR194921 for the human adenosine A1 receptors have been in the low nM range with no binding affinity for A2A and A3 receptors up to 1μM. It is orally active and has good bioavailability. FR194921 was used in a recent study to restore auditory cortex plasticity. Paired with sound exposure, FR194921 resulted in cortical map plasticity and improved auditory perception in adult mice.
in vivo

FR194921 (32 mg/kg; p.o.) shows good oral bioavailability with AUC of 6.91 μg·h/mL, Cmax of 2.13 μg/mL and Tmax OF 0.63 h, BA of 60.6% in rats[1].
FR194921 (0.032, 0.1, 0.32 mg/kg; p.o.) dose-dependently attenuates the hypolocomotion induced by CPA (HY-103181)[2].
FR194921 (0.1-10 mg/kg; i.p.) significantly ameliorates scopolamine (HY-N0296)-induced memory deficits[2].

Animal Model:SD rats[2]
Dosage:0.032, 0.1, 0.32 mg/kg
Administration:P.o.; administered orally 25 min prior to intraperitoneal administration of CPA (0.056 mg/kg; i.p.)
Result:Dose-dependently attenuated the hypolocomotion induced by CPA with an ED50 value of 0.08 mg/kg and statistical significance at 0.32 mg/kg.
Animal Model:SD rats[2]
Dosage:0.1, 0.32, 1, 3.2, 10 mg/kg
Administration:I.p.; Scopolamine (HY-N0296)(1 mg/kg, i.p.)
Result:Significant cognitive enhanced following scopolamine-induced memory deficits in rats.
IC 50A1R: 6.6 nM (Ki); A2AR: 5400 nM (Ki)
References[1] Kuroda S, et al. Design, synthesis and biological evaluation of a novel series of potent, orally active adenosine A1 receptor antagonists with high blood-brain barrier permeability. Chem Pharm Bull (Tokyo). 2001 Aug;49(8):988-98. DOI:10.1248/cpb.49.988
[2] Maemoto T, et al. Pharmacological characterization of FR194921, a new potent, selective, and orally active antagonist for central adenosine A1 receptors. J Pharmacol Sci. 2004 Sep;96(1):42-52. DOI:10.1254/jphs.fp0040359
FR-194921 Preparation Products And Raw materials
Tag:FR-194921(202646-80-8) Related Product Information
CGS 21680A NECA 8-[(E)-2-(3,4-dimethoxyphenyl)ethenyl]-1,3-diethyl-7-methyl-purine-2,6 -dione N6,N6-DIMETHYLADENOSINE CGS 15943 ZM 241385