8-Cyclopentyl-1,3-dimethylxanthine

8-Cyclopentyl-1,3-dimethylxanthine
Clinical data
ATC code	None;
Legal status
Legal status	In general: uncontrolled;
Identifiers
	IUPAC name 8-Cyclopentyl-1,3-dimethyl-7H-purine-2,6-dione;
CAS Number	35873-49-5 ;
PubChem CID	1917;
IUPHAR/BPS	385;
ChemSpider	1843 ;
UNII	U7PWT4CPL5;
ChEBI	CHEBI:109538;
ChEMBL	ChEMBL106265 ;
CompTox Dashboard (EPA)	DTXSID70189432 ;
Chemical and physical data
Formula	C12H16N4O2
Molar mass	248.286 g·mol−1
3D model (JSmol)	Interactive image;
	SMILES Cn3c(=O)c2nc(C1CCCC1)[nH]c2n(C)c3=O;
	InChI InChI=1S/C12H16N4O2/c1-15-10-8(11(17)16(2)12(15)18)13-9(14-10)7-5-3-4-6-7/h7H,3-6H2,1-2H3,(H,13,14) ; Key:SCVHFRLUNIOSGI-UHFFFAOYSA-N ;
	(verify)

8-Cyclopentyl-1,3-dimethylxanthine (8-Cyclopentyltheophylline, 8-CPT, CPX) is a drug which acts as a potent and selective antagonist for the adenosine receptors, with some selectivity for the A₁ receptor subtype, as well as a non-selective phosphodiesterase inhibitor. It has stimulant effects in animals with slightly higher potency than caffeine.^[1]^[2]

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See also