1. GPCR/G Protein
    Neuronal Signaling
  2. Cannabinoid Receptor
  3. SR144528


製品番号: HY-13439 純度: 99.86%

SR144528 is a potent and selective CB2 receptor antagonist with a Ki of 0.6 nM.


SR144528 構造式

SR144528 構造式

CAS 番号 : 192703-06-3

容量 価格(税別) 在庫状況 数量
10 mM * 1 mL in DMSO USD 119 在庫あり
Estimated Time of Arrival: December 31
5 mg USD 108 在庫あり
Estimated Time of Arrival: December 31
10 mg USD 192 在庫あり
Estimated Time of Arrival: December 31
25 mg USD 432 在庫あり
Estimated Time of Arrival: December 31
50 mg USD 744 在庫あり
Estimated Time of Arrival: December 31
100 mg USD 1320 在庫あり
Estimated Time of Arrival: December 31
200 mg   お問い合わせ  
500 mg   お問い合わせ  

* アイテムを追加する前、数量をご選択ください


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SR144528 is a potent and selective CB2 receptor antagonist with a Ki of 0.6 nM.

IC50 & Target

Ki: 0.6 nM (CB2 receptor)[1]


SR144528 is a potent and selective CB2 receptor antagonist with a Ki of 0.6 nM. SR144528 alone is able to stimulate in a concentration-dependent manner (EC50=26±6 nM, two experiments) the forskolin-sensitive adenylyl cyclase activity in CHO-CB2 cells with a maximum effect at 1 μM (4-fold stimulation) whereas at this concentration it has no significant effect on CHO-CB1 cells (15% inhibition)[1]. Raw 264.7 macrophages supplemented with SR144528 display reduced caspase-3 activity. SR144528 inhibits microsomal acyl-coenzymeA:cholesterol acyltransferase (ACAT) activity in a concentration-dependent manner with an IC50 value of 3.6±1.1 μM. At 10 μM, SR144528 inhibits ACAT activities ~68%[2].


No effect on the binding of [3H]-CP 55,940 to its specific sites in the brain is observed after either oral (up to 10 mg/kg) or i.c.v. (10 μg/animal) administration of SR144528 in mice. The occupancy by SR144528 of the spleen cannabinoid receptor is time-dependent and significant for at least 18 hours after oral administration at 3 mg/kg[1]. SR144528 does not induce any significant effect on gastrointestinal (GI) motility when given alone. SR144528 does not block but enhances delayedgastric emptying[3].





CAS 番号



O=C(C1=NN(CC2=CC=C(C)C=C2)C(C3=CC=C(Cl)C(C)=C3)=C1)N[[email protected]]4[[email protected]@](C5)(C)CC[[email protected]@]5([H])C4(C)C


Room temperature in continental US; may vary elsewhere.

Powder -20°C 3 years
  4°C 2 years
In solvent -80°C 6 months
  -20°C 1 month
溶剤 & 溶解度

DMSO : 50 mg/mL (105.03 mM; Need ultrasonic)

Stock Solutions
Concentration Solvent Mass 1 mg 5 mg 10 mg
1 mM 2.1006 mL 10.5031 mL 21.0062 mL
5 mM 0.4201 mL 2.1006 mL 4.2012 mL
10 mM 0.2101 mL 1.0503 mL 2.1006 mL
*Please refer to the solubility information to select the appropriate solvent.
  • 1.

    Add each solvent one by one:  10% DMSO    40% PEG300    5% Tween-80    45% saline

    Solubility: ≥ 2.5 mg/mL (5.25 mM); Clear solution

  • 2.

    Add each solvent one by one:  10% DMSO    90% corn oil

    Solubility: ≥ 2.5 mg/mL (5.25 mM); Clear solution

*All of the co-solvents are provided by MCE.

MAP kinase activity is measured. Briefly, cells grown to 80% confluence are maintained in culture medium containing 0.5% foetal calf serum for 24 hour prior to the application of ligands. CHO-CB1 or -CB2 cells previously washed with PBS are incubated at 37°C in the absence (basal activity) or in the presence of SR144528 (10-9 to 3×10-6 M) for 20 min. Cells are then washed at 4°C with 0.5 mL of buffer A [50 mM Tris-HCl, pH 7.5, 150 mM NaCl, 1 mM ethyleneglycol-bis-(β-aminoethyl ether) N,N,N′,N-tetraacetic acid, 1 mM Na3PO4] and lysed for 15 min in buffer A supplemented with 1% triton X-100, 10 μg/mL aprotinin, 10 μg/mL, leupeptin, 1 mM dithiothreitol and 1 mM phenylmethylsulfonyl fluoride. The solubilized cell extracts are then clarified by centrifugation at 14,000× g for 15 min at 4°C. Aliquots (15 μL) are removed and stored at -80°C until use. Phosphorylation assays are carried out at 30°C for 30 min (linear assay conditions) with γ-[33P]ATP by using the p42/p44 MAP kinase enzyme system. The radioactivity incorporated is determined by liquid scintillation counting[1].

MCE はこれらの方法の精度を確認していません。 こちらは参照専用です。


cAMP accumulations are carried out in CHO-CB1 or -CB2 cells. Cells are washed with phosphate-buffered saline (PBS) and incubated for 15 min at 37°C in 1 mL of PBS in the absence or in the presence of SR144528 (3×10-9 to 10-5M). Forskolin (3 μM final concentration) is added and cells are incubated for another 20 min at 37°C. The reaction is terminated by rapid aspiration of the assay medium and addition of 1.5 mL of ice-cold 50 mM Tris-HCl, pH 8, 4 mM ethylenediaminetetraacetic acid. Dishes are placed on ice for 5 min and then the extracts are transferred to a glass tube. Extracts are boiled and centrifuged for 10 min at 3500 g to eliminate cell debris. Aliquots from supernatant are dried and the cAMP concentration is determined by radioimmunoassay by using the scintillant proximity assay system. The basal activity is determined in the absence of forskolin[1].

MCE はこれらの方法の精度を確認していません。 こちらは参照専用です。


Male Wistar rats (240 to 300 g) are used in this study. One week after the animals arrived at the laboratory, three different sets of experiments are carried out. In the third set of experiments, SR144528 (1 mg/kg i.p.) is administered in rats. The effect of SR144528 is also analyzed in vehicle-treated rats. SR144528 volume is adjusted to a maximum of 4 to 5 mL/kg[3].

MCE はこれらの方法の精度を確認していません。 こちらは参照専用です。

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SR144528SR 144528SR-144528Cannabinoid ReceptorInhibitorinhibitorinhibit



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