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Lidocaine N-ethyl bromide

Cat. No. M21430
Lidocaine N-ethyl bromide Structure
Synonym:

QX-314

Size Price Availability Quantity
5mg USD 66  USD66 In stock
10mg USD 98  USD98 In stock
25mg USD 175  USD175 In stock
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Quality Control & Documentation
Biological Activity

Lidocaine N-ethyl bromide is a blocker of non-membrane-permeable,and Inhibits Acid-Induced Activation of Esophageal Nociceptive C Fiber Neurons.

Chemical Information
Molecular Weight 263.4
Formula C16H27N2O+
CAS Number 21306-56-9
Solubility (25°C) DMSO:10 mM
Storage Powder          -20°C   3 years ;  4°C   2 years
In solvent       -80°C   6 months ;  -20°C   1 month
Conversion of different model animals based on BSA (PMID: 27057123)
Species Mouse Rat Rabbit Guinea pig Hamster Dog
Weight (kg) 0.02 0.15 1.8 0.4 0.08 10
Body Surface Area (m2) 0.007 0.025 0.15 0.05 0.02 0.5
Km factor 3 6 12 8 5 20
Animal A (mg/kg) = Animal B (mg/kg) multiplied by  Animal B Km
Animal A Km

For example, to modify the dose of Compound A used for a mouse (20 mg/kg) to a dose based on the BSA for a rat, multiply 20 mg/kg by the Km factor for a mouse and then divide by the Km factor for a rat. This calculation results in a rat equivalent dose for Compound A of 10 mg/kg.

References

[1] Qinqin Yin, et al. Sci Rep. Effects of Liposomes Charge on Extending Sciatic Nerve Blockade of N-ethyl Bromide of Lidocaine in Rats

[2] C Brenneis, et al. Br J Pharmacol. Bupivacaine-induced cellular entry of QX-314 and its contribution to differential nerve block

[3] D P Roberson, et al. Br J Pharmacol. Targeting of sodium channel blockers into nociceptors to produce long-duration analgesia: a systematic study and review

[4] Saadet Inan, et al. Eur J Pharmacol. Inhibitory effect of lidocaine on pain and itch using formalin-induced nociception and 5'-guanidinonaltrindole-induced scratching models in mice: behavioral and neuroanatomical evidence

[5] Marc Laffon, et al. Anesthesiology. Lidocaine induces a reversible decrease in alveolar epithelial fluid clearance in rats

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