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A Blocker of L- and N-Type CaV Channels 

Cat #: C-135
Lyophilized Powder yes
  • Bioassay Tested
  • Source Synthetic
    MW: 492.5
    Purity: >98.5%
    Form Lyophilized powder.
    Effective concentration 1-100 µM.
    Chemical name 1,4-Dihydro-2,6-dimethyl-4-(3-nitrophenyl)-3,5-pyridinedicarboxylic acid 2-methoxyethyl (2E)-3-phenyl-2-propenyl ester.
    Molecular formula C27H28N2O7.
    CAS No.: 132203-70-4
    Activity Cilnidipine is an L- and N-type Ca2+-channel blocker1.
    1. Furukawa, T. et al. (1999) J. Pharmacol. Exp. Ther. 291, 464.
    Shipping and storage Shipped at room temperature. Product as supplied can be stored intact at room temperature for several weeks. For longer periods, it should be stored at -20°C.
    Solubility 10 mM in DMSO. Centrifuge all product preparations before use (10000 x g 1 min).
    Storage of solutions Up to four weeks at 4°C or three months at -20°C.
    Our bioassay
    • Alomone Labs Cilnidipine blocks L-type CaV channel currents expressed in Xenopus oocytes. 
      Alomone Labs Cilnidipine blocks L-type CaV channel currents expressed in Xenopus oocytes. 
      A. Time course of CaV1.2 (co-expressed with α2δ1 and β1 auxiliary subunits) current, elicited by 100 ms voltage ramp from holding potential of -100 mV to +50 mV, delivered every 10 seconds. Application of 10 µM Cilnidipine (#C-135) inhibits the current amplitude and modifies activation (see panel B. periods of application are indicated by the horizontal bars). B. Representative current traces before and during application of 10 µM Cilnidipine as indicated.
    References - Scientific background
    1. Takahara, A. (2009) Cardiovasc. Ther. 27, 124.
    2. Fujii, S. et al. (1997) J. Pharmacol. Exp. Ther. 280, 1184.
    3. Lohn, M. et al. (2002) J. Hypertens. 20, 885.
    4. Kokilambigai, K.S. and Lakshmi, K.S. (2014)  Int. J. Pharm. Pharm. Sci. 6, 36.
    5. Hoshide, S. et al. (2005) Hypertens. Res. 28, 1003.
    6. Nagai, H. et al. (2005) Hypertens. Res. 28, 361.
    7. Ashizawa, N. et al. (2007) Int. Heart. J. 48, 597.
    8. Tan, H.W. et al. (2006) J. Hum. Hypertens. 20, 618.
    Scientific background

    Cilnidipine (CIL) is a potent slow-acting, anti-sympathetic drug that inhibits N-type (IC50 = 200 nM) and L-type (IC50 = 100 nM) Ca2+ channels and thus alleviates hypertension occurrences. CIL is essentially a dihydropyridine with slow onset and long-term vasodilation effects. It is considered to be a "fourth generation" anti-hypertension drug, effective both in vivo and in vitro1,2-4.

    In vivo studies have demonstrated CIL to be helpful in mitigating long QT syndrome in a canine model and to reduce ischemic cardiac norepinephrine levels in rabbit model of cardiac infraction. Clinical trials have shown that CIL is highly effective in cases of severe hypertension, that it improves left ventricular function, and is effective in combating hypertension5-8.

    Target L- and N-type Ca2+ channels
    Last update: 25/07/2021

    Cilnidipine (#C-135) is a highly pure, synthetic, and biologically active compound.

    For research purposes only, not for human use
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