Estrone sulfate, a biologically inactive form of estrogen, is a major circulating plasma estrogen that is converted into the biologically active estrogen, estrone (E1) by steroid sulfatase (STS). strone sulfate can be used for the research of breast cancer^[1][2].

T47D cells are stably transfected with SOAT and incubated under increasing concentrations of Estrone sulfate and estradiol at physiologically relevant concentrations. Cell proliferation is significantly increased by 1 nM estradiol as well as by Estrone sulfate with EC50 of 2.2 nM^[3].

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

372.41

C₁₈H₂₁NaO₅S

438-67-5

Room temperature in continental US; may vary elsewhere.

Please store the product under the recommended conditions in the Certificate of Analysis.

DMSO : 33.33 mg/mL (89.50 mM; ultrasonic and warming and heat to 60°C)

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: 3.33 mg/mL (8.94 mM); Suspended solution; Need ultrasonic

  此方案可获得 3.33 mg/mL (8.94 mM) 的均匀悬浊液，悬浊液可用于口服和腹腔注射。

  以 1 mL 工作液为例，取 100 μL 33.3 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: ≥ 3.33 mg/mL (8.94 mM); Clear solution

  此方案可获得 ≥ 3.33 mg/mL (8.94 mM，饱和度未知) 的澄清溶液。

  以 1 mL 工作液为例，取 100 μL 33.3 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: ≥ 3.33 mg/mL (8.94 mM); Clear solution

  此方案可获得 ≥ 3.33 mg/mL (8.94 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 33.3 mg/mL 的澄清 DMSO 储备液加到 900 μL玉米油中，混合均匀。

• [1]. Nakamura Y, et al. Steroid sulfatase and estrogen sulfotransferase in the atherosclerotic human aorta. Am J Pathol. 2003;163(4):1329-1339.

  [2]. Duncan L, et al. Inhibition of estrone sulfatase activity by estrone-3-methylthiophosphonate: a potential therapeutic agent in breast cancer. Cancer Res. 1993;53(2):298-303.

  [3]. Karakus E, et al. Estrone-3-Sulfate Stimulates the Proliferation of T47D Breast Cancer Cells Stably Transfected With the Sodium-Dependent Organic Anion Transporter SOAT (SLC10A6). Front Pharmacol. 2018;9:941. Published 2018 Aug 21.