Tetrahydrofolic acid (L-5,6,7,8-Tetrahydrofolic acid) is the biologically active vitamin B9 folate derivative. Tetrahydrofolic acid is a donor of one-carbon groups foramino acids, nucleic acids, and lipids. Tetrahydrofolic acid serves as an acceptor of free formaldehyde, producing 5,10-methylenetetrahydrofolate-Tetrahydrofolic acid^[1].

Tetrahydrofolic acid (0-200 μM; 3 days; Adh5^-/-DT40 cells) exposure is cytotoxic to Adh5- and Fanconi anemia (FA)-deficient cells due to the accumulation of extensive DNA damage and chromosome breaks^[1].
Tetrahydrofolic acid (0-100 μM; 16 hours; Adh5^-/-DT40 cells) treatment strongly promots FANCD2 and ser139-H2AX focus formation in Adh5^-/-cells in a dose-dependent manner^[1].
Tetrahydrofolic acid exposure activates the DNA damage response (DDR) due to uncontrolled activity of the thymidylate synthase enzyme, which causes a depletion of essential nucleotides, and promotes repair by a homologous recombination mechanism^[1].

Tetrahydrofolic acid (62.5 mg/kg; intraperitoneal injection; daily; Adh5^-/-mice) treatment perturbs the hematopoiesis of hematopoietic cells, increases ser139-H2AX phosphorylation, and decreases the survival of progenitor cells (HSPCs) suggesting that excess Tetrahydrofolic acid could be mutagenic and genotoxic to bone marrow cells^[1].

445.43

Solid

C₁₉H₂₃N₇O₆

135-16-0

四氢叶酸

• Amino acids

Room temperature in continental US; may vary elsewhere.

-20°C, protect from light, stored under nitrogen

*该产品在溶液状态不稳定，建议您现用现配，即刻使用。

DMSO : 20.83 mg/mL(46.76 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；该产品在溶液状态不稳定，建议您现用现配，即刻使用。

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: ≥ 2.08 mg/mL (4.67 mM); Clear solution

  此方案可获得 ≥ 2.08 mg/mL (4.67 mM，饱和度未知) 的澄清溶液。

  以 1 mL 工作液为例，取 100 μL 20.8 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-CDin saline)

  Solubility: ≥ 2.08 mg/mL (4.67 mM); Clear solution

  此方案可获得 ≥ 2.08 mg/mL (4.67 mM，饱和度未知) 的澄清溶液。

  以 1 mL 工作液为例，取 100 μL 20.8 mg/mL 的澄清 DMSO 储备液加到 900 μL20% 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