There will be a HazMat fee per item when shipping a dangerous goods. The HazMat fee will be charged to your UPS/DHL/FedEx collect account or added to the invoice unless the package is shipped via Ground service. Ship by air in Excepted Quantity (each bottle), which is up to 1g/1mL for class 6.1 packing group I or II, and up to 25g/25ml for all other HazMat items.
Type
HazMat fee for 500 gram (Estimated)
Excepted Quantity
USD 0.00
Limited Quantity
USD 15-60
Inaccessible (Haz class 6.1), Domestic
USD 80+
Inaccessible (Haz class 6.1), International
USD 150+
Accessible (Haz class 3, 4, 5 or 8), Domestic
USD 100+
Accessible (Haz class 3, 4, 5 or 8), International
The human ether-à-go-go related gene (HERG) encodes the alpha subunit of Kv11.1, which is a voltage-gated K+ channel protein mainly expressed in heart and brain tissue. HERG plays critical role in cardiac repolarization, and mutations in HERG can cause long QT syndrome[1]. NS3623 is an activator of human ether-a-go-go-related gene potassium channels. NS3623 has a dual mode of action, being an inhibitor of hERG1 channels. NS3623 activates the IKr and Ito currents and has an antiarrhythmic effect[2]. NS3623 (30 mg/kg; i.v.; lasting for 3 minutes) shortens the corrected QT interval by 25 +/- 4% in anaesthetized guinea pigs. NS3623 (50 mg/kg) immediately reduces the QTcF interval and remains obviously shortened for approximately 30 minutes. NS3623 (50 mg/kg) shortens the QT interval by 30 +/- 6% in conscious guinea pigs[3]. The application of NS3623 (5 μM) greatly increases the size of the tail current confirming previous studies demonstrating this drug increased IKr, in isolated canine cardiomyocytes. NS3623 enhances IKr tail currents (at +50 mV activating pulse) by 60% in normal Mid cells, and 68% in 48 h cultured cells. The effect of NS3623 on IKr recorded from cells kept in culture is evaluated. The magnitude of IKr is greatly decreased compared to freshly isolated cells, after 48 h. Peak IKr tail currents are 0.47 ± 0.08 pA/pF in freshly isolated myocytes and 0.28 ± 0.06 pA/pF in 2-day cultured myocytes. Application of NS3623 increases IKr in cultured Mid cells. Analysis of the current-voltage (I-V) relation of IKr tail current showed that NS3623 increased current density in both 1 day and 2-day cultured Mid cells[4].
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