Wikipedia:  

UDP

Uridine 5'-diphosphate; URIDINE DIPHOSPHATE; Uridine 5'-(trihydrogen diphosphate); UDP
Molecular Formula
C9 H14 N2 O12 P2
Natural Isotopic Abundance Mass
404.1611820000
Mono-Isotopic Molecular Masses
C12N14:   404.002196945
C13N14:   413.032390485
C12N15:   405.996266731
C13N15:   415.0264602716
UDP image
UDP
InCHi String:
InChI=1S/C9H14N2O12P2/c12-5-1-2-11(9(15)10-5)8-7(14)6(13)4(22-8)3-21-25(19,20)23-24(16,17)18/h1-2,4,6-8,13-14H,3H2,(H,19,20)(H,10,12,15)(H2,16,17,18)/t4-,6-,7-,8-/m1/s1

canonical SMILES:
C1=CN(C(=O)NC1=O)C2C(C(C(O2)COP(=O)(O)OP(=O)(O)O)O)O


IUPAC: IUPAC systematic
[[(2S,3S,4R,5R)-5-(2,4-dioxopyrimidin-1-yl)-3,4-dihydroxy-oxolan-2-yl]methoxy-hydroxy-phosphoryl]oxyphosphonic acid

IUPAC traditional: IUPAC openeye: IUPAC cas
[[(2S,3S,4R,5R)-5-(2,4-dioxopyrimidin-1-yl)-3,4-dihydroxy-tetrahydrofuran-2-yl]methoxy-hydroxy-phosphoryl]oxyphosphonic acid



PubChem Substance (SID):   85165072   148892   3317
PubChem Compound (CID):   6031
KEGG: Compound ID   C00015
CAS Registry IDs:   58-98-0
PDB Chemical Component   UDP
Miscellaneous Databases and IDs:   ChemIDplus 000058980   EINECS 200-409-6

Reference data were obtained primarily from the PubChem database.

Three dimensional molecular rendering uses Jmol.