CI 988 structure
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Common Name | CI 988 | ||
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CAS Number | 130332-27-3 | Molecular Weight | 614.73100 | |
Density | 1.32g/cm3 | Boiling Point | 949.6ºC at 760mmHg | |
Molecular Formula | C35H42N4O6 | Melting Point | N/A | |
MSDS | N/A | Flash Point | N/A |
Use of CI 988CI-988 (PD134308) is a potent, selective and orally active CCK2R (cholecystokinin 2 receptor) antagonist with an IC50 of 1.7 nM for mouse cortex CCK2. CI-988 shows >1600-fold selectivity for CCK2 over CCK1 receptor. CI-988 has anxiolytic and anti-tumor effects[1][2][3]. |
Name | 4-[[(1R)-2-[[(2R)-2-(2-adamantyloxycarbonylamino)-3-(1H-indol-3-yl)-2-methylpropanoyl]amino]-1-phenylethyl]amino]-4-oxobutanoic acid |
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Synonym | More Synonyms |
Description | CI-988 (PD134308) is a potent, selective and orally active CCK2R (cholecystokinin 2 receptor) antagonist with an IC50 of 1.7 nM for mouse cortex CCK2. CI-988 shows >1600-fold selectivity for CCK2 over CCK1 receptor. CI-988 has anxiolytic and anti-tumor effects[1][2][3]. |
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Related Catalog | |
Target |
IC50: 1.7 nM (Mouse cortex CCK2); 2717 nM (Rat pancreas CCK1)[2] |
In Vitro | CI-988 inhibits specific 125I-BH-CCK-8 binding to NCI-H727 cells with high affinity (Ki of 4.5 nM). The increase in ROS caused by CCK-8 addition to NCI-727 cells is blocked significantly by CI-988. CI-988 (3 µM) inhibits the basal growth of NCI-H727 cells or that stimulated by CCK-8. CI-988 inhibits the ability of CCK-8 to cause ERK phosphorylation and elevate cytosolic Ca2+[1]. CI-988 inhibits in a dose-dependent manner the ability of CCK-8 to cause EGFR transactivation in NCI-H727 cells. CI-988 at doses of 1 and 10 µM weakly and strongly, respectively, inhibits the ability of 0.1µM CCK-8 to increase EGFR tyrosine phosphorylation. CI-988 antagonizes the ability of CCK-8 to cause lung cancer EGFR or ERK tyrosine phosphorylation[1]. |
In Vivo | CI-988 (10 mg/kg; p.o.; daily; for 20 days) inhibits the growth of colorectal cancer in xenografts model mice[3]. Animal Model: Nude mice injected with LoVo cells[3] Dosage: 10 mg/kg Administration: p.o.; daily; for 20 days Result: Inhibited the growth of xenografts by 53%. |
References |
Density | 1.32g/cm3 |
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Boiling Point | 949.6ºC at 760mmHg |
Molecular Formula | C35H42N4O6 |
Molecular Weight | 614.73100 |
Exact Mass | 614.31000 |
PSA | 149.62000 |
LogP | 6.03120 |
Vapour Pressure | 0mmHg at 25°C |
Index of Refraction | 1.647 |
Precursor 10 | |
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DownStream 0 |
ci 988 |