VWN38241, also known as BPD-A-1,4-diene , and benzoporphyrin derivative Ring A -1,4-diene, is an important precursor for making PDT drug verteporfin. Verteporfin (trade name Visudyne), a benzoporphyrin derivative, is a medication used as a photosensitizer for photodynamic therapy to eliminate the abnormal blood vessels in the eye associated with conditions such as the wet form of macular degeneration. VWN38241 has CAS#94238-24-1 and inchi key VTMVQLSZTQAYOV-WKGWVRGVSA-N. For the convenience of scientific communication, tt is named as VWN38241 according to Hodoodo Chemical Nomenclature.

Providing storage is as stated on the product vial and the vial is kept tightly sealed, the product can be stored for up to 24 months.
Wherever possible, you should prepare and use solutions on the same day. However, if you need to make up stock solutions in advance, we recommend that you store the solution as aliquots in tightly sealed vials at -20°C. Generally, these will be useable for up to one month. Before use, and prior to opening the vial we recommend that you allow your product to equilibrate to room temperature for at least 1 hour.