S65487 (VOB560) sulfate, a potent and selective Bcl-2 inhibitor, is a prodrug of S55746. S65487 sulfate is also active on BCL-2 mutations, such as G101V and D103Y. S65487 sulfate has poor affinity with MCL-1, BFL-1 and BCL-XL. S65487 sulfate induces apoptosis and has anticaner activities^[1][2].

S65487 binds to the BH3 hydrophobic groove of BCL-2. S65487 induces apoptosis in a panel of hematological cancer cell lines and inhibits cell proliferation with IC₅₀s in the low nM range^[1].

Shanghai Jinpan Biotech Co Ltd has not independently confirmed the accuracy of these methods. They are for reference only.

S65487 induces complete regression in BCL-2-dependent RS4;11 tumors in vivo after a single IV (intravenous) administration. Strong and persistent tumor regression in xenograft models of lymphoid malignancies in mouse and rat are observed at well tolerated doses following weekly IV administration of S65487 in combination with the MCL-1-specific inhibitor, S64315/MIK665^[1].

Shanghai Jinpan Biotech Co Ltd has not independently confirmed the accuracy of these methods. They are for reference only.

815.33

C₄₁H₄₃ClN₆O₈S

2416937-01-2

Room temperature in continental US; may vary elsewhere.

4°C, sealed storage, away from moisture

*In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture)

DMSO : 135 mg/mL (165.58 mM; Need ultrasonic)

H₂O : 1.25 mg/mL (1.53 mM; ultrasonic and warming and heat to 60°C)

请根据产品在不同溶剂中的溶解度选择合适的溶剂配制储备液；一旦配成溶液，请分装保存，避免反复冻融造成的产品失效。
储备液的保存方式和期限：-80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture)。-80°C 储存时，请在 6 个月内使用，-20°C 储存时，请在 1 个月内使用。

请根据您的实验动物和给药方式选择适当的溶解方案。以下溶解方案都请先按照 In Vitro 方式配制澄清的储备液，再依次添加助溶剂：

——为保证实验结果的可靠性，澄清的储备液可以根据储存条件，适当保存；体内实验的工作液，建议您现用现配，当天使用； 以下溶剂前显示的百
分比是指该溶剂在您配制终溶液中的体积占比；如在配制过程中出现沉淀、析出现象，可以通过加热和/或超声的方式助溶

• 1.

  请依序添加每种溶剂： 10% DMSO    40% PEG300    5% Tween-80    45% saline

  Solubility: ≥ 6.75 mg/mL (8.28 mM); Clear solution

  此方案可获得 ≥ 6.75 mg/mL (8.28 mM，饱和度未知) 的澄清溶液。

  以 1 mL 工作液为例，取 100 μL 67.5 mg/mL 的澄清 DMSO 储备液加到 400 μL PEG300 中，混合均匀；向上述体系中加入50 μL Tween-80，混合均匀；然后继续加入 450 μL生理盐水定容至 1 mL。

  将 0.9 g 氯化钠，完全溶解于 100 mL ddH₂O 中，得到澄清透明的生理盐水溶液

• 2.

  请依序添加每种溶剂： 10% DMSO    90% (20% SBE-β-CD in saline)

  Solubility: ≥ 6.75 mg/mL (8.28 mM); Clear solution

  此方案可获得 ≥ 6.75 mg/mL (8.28 mM，饱和度未知) 的澄清溶液。

  以 1 mL 工作液为例，取 100 μL 67.5 mg/mL 的澄清 DMSO 储备液加到 900 μL 20% 的 SBE-β-CD 生理盐水水溶液中，混合均匀。

  将 2 g 磺丁基醚 β-环糊精加入 5 mL 生理盐水中，再用生理盐水定容至 10 mL，完全溶解，澄清透明
• 3.

  请依序添加每种溶剂： 10% DMSO    90% corn oil

  Solubility: ≥ 6.75 mg/mL (8.28 mM); Clear solution

  此方案可获得 ≥ 6.75 mg/mL (8.28 mM，饱和度未知) 的澄清溶液，此方案不适用于实验周期在半个月以上的实验。

  以 1 mL 工作液为例，取 100 μL 67.5 mg/mL 的澄清 DMSO 储备液加到 900 μL玉米油中，混合均匀。

• [1]. Arnaud Le Tiran, et al. Abstract 1276: Identification of S65487/VOB560 as a potent and selective intravenous 2nd-generation BCL-2 inhibitor active in wild-type and clinical mutants resistant to Venetoclax. Cancer Research. July 2021.