Diethyl-pythiDC is an inhibitor of collagen prolyl 4-hydroxylases (CP4Hs).

CP4H^[1]

Diethyl-pythiDC inhibits CP4H activity in cultured cells at concentrations that do not cause iron deficiency. MDA-MB-231 cells are treated with biheteroaryl dicarboxylates, and assayed for cytotoxicity and indicators of iron deficiency. None of the esterified biheteroaryl dicarboxylates exhibited cytotoxic activity at high micromolar concentrations. Cells treated with dihydroxybenzoate (EDHB demonstrate a strong iron-deficient phenotype. In contrast, cells treated with Diethyl-pythiDC (Diethyl pythiDC) appear to be normal at concentrations as high as 500 µM. Treatment with Diethyl-pythiDC and low levels of diethyl pyimDC does not affect the level of TfR, HIF-1α, or ferritin^[1].

上海金畔生物科技有限公司 has not independently confirmed the accuracy of these methods. They are for reference only.

306.34

C₁₄H₁₄N₂O₄S

1821370-70-0

Room temperature in continental US; may vary elsewhere.

DMSO : 33.33 mg/mL (108.80 mM; Need ultrasonic)

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。-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： corn oil

  Solubility: 33.33 mg/mL (108.80 mM); Clear solution; Need ultrasonic
• 2.

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

  Solubility: 2.5 mg/mL (8.16 mM); Suspended solution; Need ultrasonic

  此方案可获得 2.5 mg/mL (8.16 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 25.0 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。

  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

• 3.

  请依序添加每种溶剂： 10% DMSO    90% corn oil

  Solubility: ≥ 2.5 mg/mL (8.16 mM); Clear solution

  此方案可获得 ≥ 2.5 mg/mL (8.16 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 25.0 mg/mL 的澄清 DMSO 储备液加到 900 μL玉米油中，混合均匀。

• [1]. Vasta JD, et al. Selective Inhibition of Collagen Prolyl 4-Hydroxylase in Human Cells. ACS Chem Biol. 2016 Jan 15;11(1):193-9.

MDA-MB-231 cells grown in Section X are plated at a concentration of 5,000 cells/well in a clear 96-well plate. The cells are allowed to adhere for 4 h, after which the medium is removed and discarded. Fresh medium is added and the cells are treated with varying concentrations of the test compound (e.g., Diethyl-pythiDC) at 37°C for 24 h. The medium is removed, and cells are washed with Dulbecco’s PBS. The MTS reagent is added at a ratio of 1:5, and the cells are incubated at 37°C for 2 h before measuring the absorbance at 490 nm. The average absorbance is measured in triplicate for each concentration tested, and the entire experiment is repeated in duplicate. The percentage of viable cells is determined by normalizing to a PBS control (100% viable), and a H₂O₂ control (0% viable)^[1].

上海金畔生物科技有限公司 has not independently confirmed the accuracy of these methods. They are for reference only.

• [1]. Vasta JD, et al. Selective Inhibition of Collagen Prolyl 4-Hydroxylase in Human Cells. ACS Chem Biol. 2016 Jan 15;11(1):193-9.