MedKoo Cat#: 563460 | Name: Pyr3
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Description:

WARNING: This product is for research use only, not for human or veterinary use.

Pyr3 is a selective antagonist of the canonical transient receptor potential channel 3 (TRPC3).

Chemical Structure

Pyr3
Pyr3
CAS#1160514-60-2

Theoretical Analysis

MedKoo Cat#: 563460

Name: Pyr3

CAS#: 1160514-60-2

Chemical Formula: C16H11Cl3F3N3O3

Exact Mass: 454.9818

Molecular Weight: 456.62

Elemental Analysis: C, 42.09; H, 2.43; Cl, 23.29; F, 12.48; N, 9.20; O, 10.51

Price and Availability

Size Price Availability Quantity
1mg USD 210.00
5mg USD 380.00
10mg USD 560.00
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Related CAS #
No Data
Synonym
Pyr3; Pyr-3; Pyr 3;
IUPAC/Chemical Name
ethyl 1-(4-(2,3,3-trichloroacrylamido)phenyl)-5-(trifluoromethyl)-1H-pyrazole-4-carboxylate
InChi Key
RZHGONNSASQOAY-UHFFFAOYSA-N
InChi Code
InChI=1S/C16H11Cl3F3N3O3/c1-2-28-15(27)10-7-23-25(12(10)16(20,21)22)9-5-3-8(4-6-9)24-14(26)11(17)13(18)19/h3-7H,2H2,1H3,(H,24,26)
SMILES Code
O=C(C1=C(C(F)(F)F)N(C2=CC=C(NC(/C(Cl)=C(Cl)/Cl)=O)C=C2)N=C1)OCC
Appearance
Solid powder
Purity
>98% (or refer to the Certificate of Analysis)
Shipping Condition
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.
Storage Condition
Dry, dark and at 0 - 4 C for short term (days to weeks) or -20 C for long term (months to years).
Solubility
Soluble in DMSO
Shelf Life
>3 years if stored properly
Drug Formulation
This drug may be formulated in DMSO
Stock Solution Storage
0 - 4 C for short term (days to weeks), or -20 C for long term (months).
HS Tariff Code
2934.99.03.00
More Info
Product Data
Biological target:
Pyr3 inhibits TRPC3-mediated Ca2+ influx with an IC50 value of 0.7 μM without effect on other TRPC members. Pyr3 suppresses the activation of nuclear factor of activated T cells with an IC50 value of 0.05 μM. Pyr3 has been shown to suppress cardiac hypertrophy in mice.
In vitro activity:
Pyr3 enhances dexamethasone sensitivity in acute lymphoblastic leukemia (ALL) cells through the distraction of Dex-mediated Ca(2+) signaling. Pyr3 alone induced Ca(2+) signaling via only endoplasmic reticulum-released Ca(2+) and exerted inhibitory effect on store-operated Ca(2+) entry in dose-dependent manner in ALL cell lines. Pre-incubation of cells with Pyr3 significantly curtailed the thapsigargin- and Dex-evoked Ca(2+) signaling in ALL cell lines. Reference: Eur J Pharmacol. 2016 Aug 5;784:90-8. https://pubmed.ncbi.nlm.nih.gov/27179991/
In vivo activity:
In a myocardial ischemia/reperfusion (I/R) injury murine model, Pyr3 reduced the myocardial cell apoptosis rate and inflammatory response. Pyr3 may directly bind to TRPC3 channel protein, inhibit TRPC3 channel activity, and improve TRPC3-related myocardial I/R injury. Pyr3 may be used for clarification of TRPC3 functions and for treatments of TRPC3-mediated diseases. Reference: Curr Med Sci. 2020 Dec;40(6):1107-1113. https://pubmed.ncbi.nlm.nih.gov/33428139/
Solvent mg/mL mM
Solubility
DMF 50.0 109.50
DMSO 20.0 43.80
Ethanol 10.0 21.90
Note: There can be variations in solubility for the same chemical from different vendors or different batches from the same vendor. The following factors can affect the solubility of the same chemical: solvent used for crystallization, residual solvent content, polymorphism, salt versus free form, degree of hydration, solvent temperature. Please use the solubility data as a reference only. Warming and sonication will facilitate dissolving. Still have questions? Please contact our Technical Support scientists.

Preparing Stock Solutions

The following data is based on the product molecular weight 456.62 Batch specific molecular weights may vary from batch to batch due to the degree of hydration, which will affect the solvent volumes required to prepare stock solutions.

Recalculate based on batch purity %
Concentration / Solvent Volume / Mass 1 mg 5 mg 10 mg
1 mM 1.15 mL 5.76 mL 11.51 mL
5 mM 0.23 mL 1.15 mL 2.3 mL
10 mM 0.12 mL 0.58 mL 1.15 mL
50 mM 0.02 mL 0.12 mL 0.23 mL
Formulation protocol:
1. Abdoul-Azize S, Buquet C, Vannier JP, Dubus I. Pyr3, a TRPC3 channel blocker, potentiates dexamethasone sensitivity and apoptosis in acute lymphoblastic leukemia cells by disturbing Ca(2+) signaling, mitochondrial membrane potential changes and reactive oxygen species production. Eur J Pharmacol. 2016 Aug 5;784:90-8. doi: 10.1016/j.ejphar.2016.05.014. Epub 2016 May 12. PMID: 27179991. 2. Chang HH, Cheng YC, Tsai WC, Tsao MJ, Chen Y. Pyr3 Induces Apoptosis and Inhibits Migration in Human Glioblastoma Cells. Cell Physiol Biochem. 2018;48(4):1694-1702. doi: 10.1159/000492293. Epub 2018 Aug 3. PMID: 30078005. 3. Lu M, Fang XX, Shi DD, Liu R, Ding Y, Zhang QF, Wang HQ, Tang JM, He XJ. A Selective TRPC3 Inhibitor Pyr3 Attenuates Myocardial Ischemia/Reperfusion Injury in Mice. Curr Med Sci. 2020 Dec;40(6):1107-1113. doi: 10.1007/s11596-020-2293-y. Epub 2021 Jan 11. PMID: 33428139. 4. Munakata M, Shirakawa H, Nagayasu K, Miyanohara J, Miyake T, Nakagawa T, Katsuki H, Kaneko S. Transient receptor potential canonical 3 inhibitor Pyr3 improves outcomes and attenuates astrogliosis after intracerebral hemorrhage in mice. Stroke. 2013 Jul;44(7):1981-7. doi: 10.1161/STROKEAHA.113.679332. Epub 2013 May 14. PMID: 23674527.
In vitro protocol:
1. Abdoul-Azize S, Buquet C, Vannier JP, Dubus I. Pyr3, a TRPC3 channel blocker, potentiates dexamethasone sensitivity and apoptosis in acute lymphoblastic leukemia cells by disturbing Ca(2+) signaling, mitochondrial membrane potential changes and reactive oxygen species production. Eur J Pharmacol. 2016 Aug 5;784:90-8. doi: 10.1016/j.ejphar.2016.05.014. Epub 2016 May 12. PMID: 27179991. 2. Chang HH, Cheng YC, Tsai WC, Tsao MJ, Chen Y. Pyr3 Induces Apoptosis and Inhibits Migration in Human Glioblastoma Cells. Cell Physiol Biochem. 2018;48(4):1694-1702. doi: 10.1159/000492293. Epub 2018 Aug 3. PMID: 30078005.
In vivo protocol:
1. Lu M, Fang XX, Shi DD, Liu R, Ding Y, Zhang QF, Wang HQ, Tang JM, He XJ. A Selective TRPC3 Inhibitor Pyr3 Attenuates Myocardial Ischemia/Reperfusion Injury in Mice. Curr Med Sci. 2020 Dec;40(6):1107-1113. doi: 10.1007/s11596-020-2293-y. Epub 2021 Jan 11. PMID: 33428139. 2. Munakata M, Shirakawa H, Nagayasu K, Miyanohara J, Miyake T, Nakagawa T, Katsuki H, Kaneko S. Transient receptor potential canonical 3 inhibitor Pyr3 improves outcomes and attenuates astrogliosis after intracerebral hemorrhage in mice. Stroke. 2013 Jul;44(7):1981-7. doi: 10.1161/STROKEAHA.113.679332. Epub 2013 May 14. PMID: 23674527.
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