Adenylyl- (3' −> 5') - adenylyl- (3' −> 5') - adenosine- 2', 3'- cyclic monophosphate (ApApA (2',3'-cp) / A₃>P / ApApA>p), sodium salt

NC1=NC=NC2=C1N=CN2[C@H]3[C@H](O)[C@H](OP([O-])(OC[C@H]4O[C@@H](N5C=NC6=C5N=CN=C6N)[C@H](O)[C@@H]4OP(OC[C@H]7O[C@@H](N8C=NC9=C8N=CN=C9N)[C@H](O%10)[C@@H]7OP%10([O-])=O)([O-])=O)=O)[C@@H](CO)O3.[Na+].[Na+].[Na+]