Definition: Adenosine 5'-(trihydrogen diphosphate). An adenine nucleotide containing two phosphate groups esterified to the sugar moiety at the 5'-position.
N(6)-methyl-2'-deoxyadenosine 3',5'-diphosphate [ (33P)-N(6)-methyl-2'-deoxyadenosine-3',5'-bisphosphate,MRS 2179,MRS-2179,MRS2179 ] a P2Y1 receptor antagonist; structure in first source