Pafolacianine (tetrasodium) [CAS 1628858-03-6]

Pafolacianine tetrasodium (OTL 38 tetrasodium) is a fluorescent imaging agent made of near-infrared dye used in detecting tumor lesions during surgical procedures. Pafolacianine tetrasodium excites at 774 to 775 nm and emits at 794 to 796 nm[1][2][3].

[1628858-03-6]

C61H63N9Na4O17S4

1414.42

O=S(CCCCN1C2=CC=C(S(=O)(O[Na])=O)C=C2C(C)(/C1=C/C=C3C(OC4=CC=C(C=C4)C[C@@H](C(O[Na])=O)NC(C5=CC=C(C=C5)NCC(N=C67)=CNC6=NC(N)=NC7=O)=O)=C(CCC\3)/C=C\C8=[N+](C9=CC=C(S(=O)([O-])=O)C=C9C8(C)C)CCCCS(=O)(O[Na])=O)C)(O[Na])=O

Fluorescent Dye

Room temperature