Formal Name: adenosine, 5′→P′′-ester with (P′′S)-thiotriphosphoric acid ((HO)2P(O)OP(O)(OH)OP(O)(OH)(SH)), tetrasodium salt
Purity: ≥95%
Formula Markup: C10H12N5O12P3S • 4Na
Formula Weight: 611,2
Shelf life (days): 730
Notes: Sp-Adenosine-5'-O-(1-thiotriphosphate) (Sp-ATP-α-S) is an isomer of the sulfur-containing nucleotide derivative ATP-α-S and an agonist of the purinergic P2Y1 receptor.{67377} It increases calcium mobilization in HEK293 cells expressing the P2Y1 receptor (EC50 = 9.4 nM for the human receptor). Sp-ATP-α-S inhibits ADP-induced aggregation of isolated human platelets (Ki = 4 μM).{67378} It induces relaxation of carbamoylcholine-preconstricted guinea pig taenia coli (EC50 = 426 nM).{69380}