FURNA

PDB CCD ID:	SR0
Number of entries in FURNA:	74
Chemical formula:	C7 H22 N3
InChI:	InChI=1S/C7H19N3/c8-4-1-2-6-10-7-3-5-9/h10H,1-9H2/p+3
InChIKey:	ATHGHQPFGPMSJY-UHFFFAOYSA-Q
SMILES:	[NH3+]CCCC[NH2+]CCC[NH3+]; C(CC[NH2+]CCC[NH3+])C[NH3+]
Name:	N~1~-(3-azaniumylpropyl)butane-1,4-diaminium; spermidine, fully protonated form

Reference:

Chengxin Zhang, Lydia Freddolino (2024) "FURNA: a database for function annotations of RNA structures," PLOS Biology 22(7): e3002476.