NSC 74859 - CAS:501919-59-1

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NSC 74859 (Synonyms:S3I-201)

目录号 : KM5238 CAS No. : 501919-59-1 纯度 : 98%

Data Sheet 产品使用指南

NSC 74859 (S3I-201) 是选择性的 Stat3 抑制剂，IC₅₀ 为 86 μM。

规格	价格	是否有货
5mg		In-stock
10mg		In-stock
50mg		In-stock
100mg		In-stock
200mg	询价	In-stock
500mg	询价	In-stock

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生物活性

NSC 74859 (S3I-201) is a selective Stat3 inhibitor with an IC₅₀ of 86 μM.

体外研究

NSC 74859 (S3I-201) preferentially inhibits Stat3 DNA-binding activity over that of Stat1 (IC₅₀ values, Stat3•Stat3, 86±33 μM; Stat1•Stat3, 160±43 μM; and Stat1•Stat1, >300 μM) and inhibits that of Stat5 with IC₅₀ of 166±17 μM). NSC 74859 significantly reduces viable cell numbers and inhibits growth of transformed mouse fibroblasts NIH 3T3/v-Src and breast carcinoma cell lines (MDA-MB-231, MDA-MB-435, and MDA-MB-468). At 30-100 μM, NSC 74859 induces significant apoptosis in the representative human breast carcinoma cell line MDA-MB-435 and NIH 3T3/v-Src, both of which harbor constitutively active Stat3. The breast carcinoma MDA-MB-435 cell line is more sensitive to 30 μM NSC 74859. By contrast, the human breast cancer MDA-MB-453 cells and the normal mouse fibroblasts (NIH 3T3), which do not contain abnormal Stat3 activity, are less sensitive to NSC 74859 at 100 μM or less. At 300 μM or higher, NSC 74859 induced general, nonspecific cytotoxicity independent of Stat3 activation status. Huh-7 cells do not express β2SP or TBGFR2 and are sensitive to STAT3 inhibition, with an IC₅₀ of 100 μM for NSC 74859, regardless of CD133 status. The IC₅₀ of NSC 74859 is 150 μM for Huh-7 and SNU-398 cells, 15 μM for SNU-475 cells and 200 μM for SNU-182 cells. NSC 74859 inhibits breast carcinoma MDA-MB-435, MDA-MB-453 and MDA-MB-231 cell lines with an IC₅₀ close to 100 μM.

体内研究

Human breast (MDA-MB-231) tumor-bearing mice are given an i.v. injection of NSC 74859 (S3I-201) or vehicle every 2 or every 3 days for 2 weeks, and tumor measurements are taken every 2-3 days. Compared with control (vehicle-treated) tumors, which continued to grow, human breast tumors in mice that received S3I-201 display strong growth inhibition. Continued evaluation of treated mice on termination of treatment shows no resumption of tumor growth, suggesting potentially a long-lasting effect of S3I-201 on tumor growth. Compared with vehicle-treated control tumors (n=15), which continued to grow, S3I-201 treatment of somatotroph tumor xenografts (n=15) significantly attenuated tumor growth for the duration of the experiment. Tumors derived from NSC 74859-treated rats are significantly smaller than those from the untreated group (220±16 mm vs. 287±16 mm, P<0.01) as early as 5 days after NSC 74859 injection. Fifteen days after treatments, the average tumor volume of NSC 74859-treated rats is 64% of that of controls (449±40 mm vs. 708±83 mm, P<0.01). Rats are sacrificed and tumors are harvested 15 days after treatment initiation. The average tumor weight of NSC 74859-treated rats is 78±8 mg, while tumors derived from control rats weighed 114±13 mg (32% reduction; P<0.05).

分子式

C₁₆H₁₅NO₇S

分子量

365.36

CAS号

501919-59-1

运输条件

Room temperature in continental US; may vary elsewhere.

储存方式

Powder	-20°C	3 years
	4°C	2 years

*该产品在溶液状态不稳定，建议您现用现配，即刻使用。

溶解性数据

In Vitro:

DMSO : 100 mg/mL (273.70 mM; Need ultrasonic)

配制储备液

浓度溶剂体积质量	1 mg	5 mg	10 mg

1 mM	2.7370 mL	13.6851 mL	27.3703 mL
5 mM	0.5474 mL	2.7370 mL	5.4741 mL
10 mM	0.2737 mL	1.3685 mL	2.7370 mL

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；该产品在溶液状态不稳定，建议您现用现配，即刻使用。

In Vivo:

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: ≥ 7.5 mg/mL (20.53 mM); Clear solution

此方案可获得 ≥ 7.5 mg/mL (20.53 mM，饱和度未知) 的澄清溶液。
以 1 mL 工作液为例，取 100 μL 75.0 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。
2.

请依序添加每种溶剂： 10% DMSO 90% (20% SBE-β-CD in saline)
Solubility: ≥ 7.5 mg/mL (20.53 mM); Clear solution

此方案可获得 ≥ 7.5 mg/mL (20.53 mM，饱和度未知) 的澄清溶液。
以 1 mL 工作液为例，取 100 μL 75.0 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。
3.

请依序添加每种溶剂： 10% DMSO 90% corn oil
Solubility: ≥ 7.5 mg/mL (20.53 mM); Clear solution

此方案可获得 ≥ 7.5 mg/mL (20.53 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 75.0 mg/mL 的澄清 DMSO 储备液加到 900 μL玉米油中，混合均匀。
4.

请依序添加每种溶剂： 5% DMSO 40% PEG300 5% Tween-80 50% saline
Solubility: ≥ 2.5 mg/mL (6.84 mM); Clear solution
5.

请依序添加每种溶剂： 5% DMSO 95% (20% SBE-β-CD in saline)
Solubility: ≥ 2.5 mg/mL (6.84 mM); Clear solution

科研文献

纯度： 98%

Data Sheet

产品使用指南

摩尔计算器
稀释计算器

The molarity calculator equation

Mass (g) = Concentration (mol/L) × Volume (L) × Molecular Weight (g/mol)

质量

浓度

体积

分子量*

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The dilution calculator equation

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)
This equation is commonly abbreviated as: C1V1 = C2V2

浓度

体积

浓度

体积

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KKL 顾客使用本产品发表的 26 篇科研文献

The molarity calculator equation

The dilution calculator equation