Deoxyadenosine diphosphate is a nucleoside diphosphate. It is related to the common nucleic acid ATP, or adenosine triphosphate, with the -OH (hydroxyl) group on the 2' carbon on the nucleotide's pentose removed (hence the deoxy- part of the name), and with one fewer phosphoryl group than ATP. This makes it also similar to adenosine diphosphate except with a hydroxyl group removed.

Deoxyadenosine diphosphate^[1]

Names
IUPAC name 2′-Deoxyadenosine 5′-(trihydrogen diphosphate)
Systematic IUPAC name [(2R,3S,5R)-5-(6-Amino-9H-purin-9-yl)-3-hydroxyoxolan-2-yl]methyl trihydrogen diphosphate
Other names dADP
Identifiers
CAS Number	2793-06-8 Y
3D model (JSmol)	Interactive image
ChemSpider	164196 N
MeSH	Deoxyadenosine+diphosphate
PubChem CID	188966
UNII	APQ916I0QD N
CompTox Dashboard (EPA)	DTXSID90950621
InChI InChI=1S/C10H15N5O9P2/c11-9-8-10(13-3-12-9)15(4-14-8)7-1-5(16)6(23-7)2-22-26(20,21)24-25(17,18)19/h3-7,16H,1-2H2,(H,20,21)(H2,11,12,13)(H2,17,18,19)/t5-,6+,7+/m0/s1 N Key: DAEAPNUQQAICNR-RRKCRQDMSA-N N InChI=1/C10H15N5O9P2/c11-9-8-10(13-3-12-9)15(4-14-8)7-1-5(16)6(23-7)2-22-26(20,21)24-25(17,18)19/h3-7,16H,1-2H2,(H,20,21)(H2,11,12,13)(H2,17,18,19)/t5-,6+,7+/m0/s1 Key: DAEAPNUQQAICNR-RRKCRQDMBL
SMILES C1[C@@H]([C@H](O[C@H]1N2C=NC3=C(N=CN=C32)N)COP(=O)(O)OP(=O)(O)O)O
Properties
Chemical formula	C10H15N5O9P2
Molar mass	411.201722
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). N verify (what is YN ?) Infobox references

Deoxyadenosine diphosphate is abbreviated dADP.