Ritalinic acid

Ritalinic acid
Clinical data
ATC code	None;
Legal status
Legal status	US: Unscheduled and Uncontrolled;
Identifiers
	IUPAC name Phenyl(piperidin-2-yl)acetic acid;
CAS Number	19395-41-6 ;
PubChem CID	86863;
ChemSpider	78360 ;
UNII	GT4165RS9H;
CompTox Dashboard (EPA)	DTXSID20864888 ;
ECHA InfoCard	100.039.094
Chemical and physical data
Formula	C13H17NO2
Molar mass	219.284 g·mol−1
3D model (JSmol)	Interactive image;
	SMILES C1CCNC(C1)C(C2=CC=CC=C2)C(=O)O;
	InChI InChI=InChI=1S/C13H17NO2/c15-13(16)12(10-6-2-1-3-7-10)11-8-4-5-9-14-11/h1-3,6-7,11-12,14H,4-5,8-9H2,(H,15,16) ; Key:INGSNVSERUZOAK-UHFFFAOYSA-N ;
	(verify)

Ritalinic acid is a substituted phenethylamine and an inactive major metabolite of the psychostimulant drugs methylphenidate, dexmethylphenidate and ethylphenidate. When administered orally, methylphenidate is extensively metabolized in the liver by hydrolysis of the ester group yielding ritalinic acid. The hydrolysis was found to be catalyzed by carboxylesterase 1 (CES1).

Etymologically, ritalinic acid shares its roots with Ritalin, a common brand name for methylphenidate.

Clinical data

ATC code	None
Legal status
Legal status	US: Unscheduled and Uncontrolled
Identifiers
IUPAC name Phenyl(piperidin-2-yl)acetic acid
CAS Number	19395-41-6^Y
PubChem CID	86863
ChemSpider	78360^Y
UNII	GT4165RS9H
CompTox Dashboard (EPA)	DTXSID20864888
ECHA InfoCard	100.039.094
Chemical and physical data
Formula	C₁₃H₁₇NO₂
Molar mass	219.284 g·mol⁻¹
3D model (JSmol)	Interactive image
SMILES C1CCNC(C1)C(C2=CC=CC=C2)C(=O)O
InChI InChI=InChI=1S/C13H17NO2/c15-13(16)12(10-6-2-1-3-7-10)11-8-4-5-9-14-11/h1-3,6-7,11-12,14H,4-5,8-9H2,(H,15,16)^Y Key:INGSNVSERUZOAK-UHFFFAOYSA-N^Y
(verify)