Talaporfin sodium  (Synonyms: ME2906; Mono-L-aspartyl chlorin e6; NPe6)

Talaporfin (ME2906) sodium is a chlorin based photosensitizer. Talaporfin sodium can be used for the research of various cancers by using photodynamic therapy (PDT)^[1].

Guidelines (Following is our recommended protocol. This protocol only provides a guideline, and should be modified according to your specific needs) ^[1].
Labeling in vivo:
1. Use the rat brain tumor model produced by the inoculation of resuspended tumor cells into the frontal rat brain. Feed animals according to your normal protocol.
2. Intravenous injection of 5 mg/kg body weight talaporfin sodium, the concentration of the talaporfin sodium is 5 mg/1 ml 0.9% saline.
3. For the control group, intraperitoneal injection of 100 mg/kg body weight 5-ALA, the concentration of the 5-ALA is 20 mg/1 ml 0.9% saline.
4. Obtain the tissue samples corresponding to the tumor (or edema) brain tissue with 5 mm thickness.
5. The samples are well homogenized with 1 ml of 100% dimethyl sulfoxide (DMSO) and the 100 ul aliquots of the supernatant are put into each well of a 96-well plate.
6. Measure the relative fluorescence intensities of the samples by using a microplate readerin emission wavelength of 670 ±10 nm. The relative fluorescence intensities of the samples (a.u.) were normalized to the relative fluorescence intensities per 1 g-weight of the samples (a.u.).

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

799.69

C₃₈H₃₇N₅Na₄O₉

220201-34-3

Solid

Purple to black

O=C(O[Na])C[C@@H](C(O[Na])=O)NC(C/C1=C2[C@@H](CCC(O[Na])=O)[C@H](C)C(/C=C3C(C)=C(C=C)/C(N/3)=C/C(C(C)=C/4CC)=NC4=C/C5=C(C)C(C(O[Na])=O)=C1N5)=N\2)=O

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)

* Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture). When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

* Note: If you choose water as the stock solution, please dilute it to the working solution, then filter and sterilize it with a 0.22 μm filter before use.

• [1]. Takao Tsurubuchi, et al. The optimization of fluorescence imaging of brain tumor tissue differentiated from brain edema--in vivo kinetic study of 5-aminolevulinic acid and talaporfin sodium. Photodiagnosis Photodyn Ther. 2009 Mar;6(1):19-27.  [Content Brief]