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BGC-20-1531 free base (PGN 1531 free base)

Cat No.:V74469 Purity: ≥98%
BGC-20-1531 (PGN 1531) free base is a potent and specific prostaglandin EP4 receptor antagonist (inhibitor) with a pKB value of 7.6.
BGC-20-1531 free base (PGN 1531 free base)
BGC-20-1531 free base (PGN 1531 free base) Chemical Structure CAS No.: 736183-35-0
Product category: Prostaglandin Receptor
This product is for research use only, not for human use. We do not sell to patients.
Size Price Stock Qty
1mg
5mg
10mg
Other Sizes

Other Forms of BGC-20-1531 free base (PGN 1531 free base):

  • BGC20-1531 HCl
Official Supplier of:
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Top Publications Citing lnvivochem Products
Product Description
BGC-20-1531 (PGN 1531) free base is a potent and specific prostaglandin EP4 receptor antagonist (inhibitor) with a pKB value of 7.6. BGC-20-1531 free base may be used for studying migraine.
BGC-20-1531 free base (PGN 1531 free base) is a potent and selective small molecule antagonist targeting the prostanoid EP4 receptor. It is primarily utilized in preclinical research to explore mechanisms of migraine headache and other pain states where the EP4 receptor is implicated.
Biological Activity I Assay Protocols (From Reference)
Targets
EP4 7.6 (pKd)
BGC-20-1531 specifically targets the Prostaglandin E2 (PGE2) receptor subtype EP4, which is a G-protein-coupled receptor (GPCR). The EP4 receptor plays a key role in mediating pain, inflammation, and other physiological processes in response to PGE2. By antagonizing EP4, BGC-20-1531 blocks PGE2-driven signaling.
ln Vitro
Human middle cerebral (pKb=7.8) and meningeal (pKb=7.6) arteries' PGE2-induced vasodilatation was competitively inhibited by BGC-20-1531 free base, whereas PGE2-induced responses in coronary, pulmonary, or renal arteries were unaffected[1].
BGC-20-1531 demonstrates potent and selective inhibitory activity against the EP4 receptor, with a pKB value of 7.6 (KB ~ 25 nM). This indicates a strong functional antagonism. It exhibits high selectivity for EP4 over other prostanoid receptors (EP1, EP2, EP3, DP, FP, IP, TP), making it a valuable tool for studying specific EP4-mediated pathways.
ln Vivo
The dose-dependent inhibition of PGE2-induced increase in canine carotid blood flow is caused by BGC-20-1531 free base (1-10 mg/kg; iv)[1].
In vivo, BGC-20-1531 free base has shown potential for research into migraine headache. The specific activity includes the ability to attenuate PGE2-induced thermal hyperalgesia and mechanical allodynia in pre-clinical animal models. These effects are consistent with the role of EP4 receptors in sensitizing peripheral nociceptors.
Enzyme Assay
The specific in vitro protocol for assessing EP4 receptor binding would utilize a radioligand binding assay. HEK-293 or CHO cells stably expressing the human EP4 receptor are harvested and homogenized to prepare membrane fractions. The membranes are then incubated with [3H]-PGE2 and increasing concentrations of BGC-20-1531. After incubation, bound and free radioligands are separated by filtration, and the radioactivity is measured to calculate Ki or IC50.
Cell Assay
In a functional cellular assay, HEK-293 cells stably transfected with the human EP4 receptor and a CRE-luciferase reporter gene are used. The cells are seeded in 96-well plates and cultured overnight. After serum starvation, cells are pre-incubated with various concentrations of BGC-20-1531 (0.1-10,000 nM) for 30 minutes, then stimulated with PGE2. After 4-6 hours of incubation, luciferase activity is measured as a proxy for cAMP-mediated signaling, and the pKB is calculated from the rightward shift of the PGE2 concentration-response curve.
Animal Protocol
Animal/Disease Models: Beagle dogs[1]
Doses: 1- 10 mg/kg
Route of Administration: Iv
Experimental Results: Caused a dose-dependent antagonism of the PGE2-induced increase in canine carotid blood flow.
A standard in vivo protocol for migraine research uses a rat or mouse model of PGE2-induced hyperalgesia. Male Sprague-Dawley rats are injected with PGE2 (1 ug) intraplantarly into the hind paw to induce thermal hyperalgesia and mechanical allodynia. BGC-20-1531 is administered orally or intraperitoneally at doses of 3-30 mg/kg, 30 minutes before PGE2 challenge. Paw withdrawal latency (radiant heat) and withdrawal threshold (von Frey filaments) are measured at baseline and multiple times post-injection to evaluate the reversal of PGE2-induced hypersensitivity by the antagonist.
ADME/Pharmacokinetics
Detailed pharmacokinetic parameters for BGC-20-1531 in published literature are limited. As a small molecule EP4 antagonist, it is designed for oral bioavailability. Standard PK parameters for this class include moderate clearance and moderate volume of distribution. The compound is likely metabolized by hepatic CYP enzymes. Exact values for Tmax, half-life, and oral bioavailability for this specific formulation are not present in standard chemical databases.
Toxicity/Toxicokinetics
Specific toxicological data for BGC-20-1531 has not been published in standard reference databases. As a preclinical research compound, standard safety profiling would be expected to assess any cytotoxic effects on primary cell lines (e.g., hepatocytes) and potential off-target receptor interactions. In a research context, the selectivity profile suggests a low risk of broad systemic toxicity, though detailed LD50 or NOAEL values are not provided.
References

[1]. BGC20-1531, a novel, potent and selective prostanoid EP receptor antagonist: a putative new treatment for migraine headache. Br J Pharmacol. 2009;156(2):316-327.

Additional Infomation
See also: Bgc-20-1531 (Note has been moved).
BGC-20-1531 is exclusively a research tool and has not been approved by the FDA or other regulatory agencies for clinical use. It is a highly valuable EP4 antagonist tool compound for investigating the role of PGE2 signaling via EP4 in pain, inflammation, and cancer biology. The free base formulation refers to the non-salt active form of the compound.
These protocols are for reference only. InvivoChem does not independently validate these methods.
Physicochemical Properties
Molecular Formula
C26H24N2O6S
Molecular Weight
492.5436
Exact Mass
492.135
CAS #
736183-35-0
Related CAS #
BGC-20-1531 hydrochloride;1962928-26-2
PubChem CID
18444613
Appearance
Light yellow to brown solid powder
LogP
4.5
Hydrogen Bond Donor Count
1
Hydrogen Bond Acceptor Count
7
Rotatable Bond Count
8
Heavy Atom Count
35
Complexity
794
Defined Atom Stereocenter Count
0
SMILES
S(C1=C([H])C([H])=C([H])C([H])=C1C([H])([H])[H])(N([H])C(C1=C([H])C(C([H])([H])OC2C([H])=C([H])C(C3C([H])=C([H])C(=C([H])N=3)OC([H])([H])[H])=C([H])C=2[H])=C(C([H])([H])[H])O1)=O)(=O)=O
InChi Key
IXDVRRPNWPOPGV-UHFFFAOYSA-N
InChi Code
InChI=1S/C26H24N2O6S/c1-17-6-4-5-7-25(17)35(30,31)28-26(29)24-14-20(18(2)34-24)16-33-21-10-8-19(9-11-21)23-13-12-22(32-3)15-27-23/h4-15H,16H2,1-3H3,(H,28,29)
Chemical Name
4-[[4-(5-methoxypyridin-2-yl)phenoxy]methyl]-5-methyl-N-(2-methylphenyl)sulfonylfuran-2-carboxamide
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: 250 mg/mL (507.57 mM)
Solubility (In Vivo)
Solubility in Formulation 1: ≥ 2.08 mg/mL (4.22 mM) (saturation unknown) in 10% DMSO + 40% PEG300 +5% Tween-80 + 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 20.8 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.

 (Please use freshly prepared in vivo formulations for optimal results.)
Preparing Stock Solutions 1 mg 5 mg 10 mg
1 mM 2.0303 mL 10.1515 mL 20.3029 mL
5 mM 0.4061 mL 2.0303 mL 4.0606 mL
10 mM 0.2030 mL 1.0151 mL 2.0303 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.

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Note: Chemical formula is case sensitive: C12H18N3O4  c12h18n3o4
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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.
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