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5.06045

Sigma-Aldrich

GPR55 Receptor Antagonist, CID16020046

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Synonym(s):
GPR55 Receptor Antagonist, CID16020046, 4-[4-(3-Hydroxyphenyl)-3-(4-methylphenyl)-6-oxo-1H,4H-pyrrolo[3,4-c]pyrazol-5-yl]benzoic Acid
Empirical Formula (Hill Notation):
C25H19N3O4
CAS Number:
Molecular Weight:
425.44
UNSPSC Code:
12352200
PubChem Substance ID:
NACRES:
NA.77

Assay

≥99% (HPLC)

Quality Level

form

powder

potency

1 μM IC50

manufacturer/tradename

Calbiochem®

storage condition

OK to freeze
protect from light

color

off-white

solubility

DMSO: 100 mg/mL

storage temp.

2-8°C

SMILES string

CC1=CC=C(C=C1)C2=NNC3=C2C(N(C3=O)C4=CC=C(C=C4)C(=O)O)C5=CC(=CC=C5)O

General description

A selective antagonist of G protein-coupled receptor 55 (GPR55) that blocks lipid L-a-lysophosphatidylinositol (LPI, Cat. No. 440153)-induced GPR55 activation (IC50 = 1 µM) and downstream effects in HEK293 cells. Also shown to block the agonistic effect of LPI on GPR55- expressing yeast cells (~10 µM). Inhibits LPI-induced Ca2+ mobilization and ERK1/2 phosphorylation in HEK-GPR55 and HEK-CB1 cells. However, it does not affect basal Ca2+ mobilization and ERK1/2 activity. Blocks the GPR55-mediated NFAT and NF-kB activation and their nuclear translocation in HEK-GPR55 cells. Diminishes LPI-induced wound healing in GPR55-expressing primary human lung microvascular endothelial cells and reverses LPI-inhibited platelet aggregation (~10 µM). Also reported to inhibit the activity of phosphodiesterases PDE3A and PDE4B (pIC50 = 5 and 4.8, respectively).

Biochem/physiol Actions

Primary Target
GPR55

Packaging

Packaged under inert gas

Warning

Toxicity: Standard Handling (A)

Reconstitution

Following reconstitution, aliquot and freeze (-20°C). Stock solutions are stable for up to 3 months at -20°C.

Other Notes

Kargl, J., et al, 2013. J. Pharmacol. Exp. Ther.346, 54.

Legal Information

CALBIOCHEM is a registered trademark of Merck KGaA, Darmstadt, Germany

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Regulatory Information

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