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Details

Stereochemistry ABSOLUTE
Molecular Formula C13H17NO2.ClH
Molecular Weight 255.741
Optical Activity UNSPECIFIED
Defined Stereocenters 2 / 2
E/Z Centers 0
Charge 0

SHOW SMILES / InChI
Structure of RITALINIC ACID HYDROCHLORIDE, D-THREO-

SMILES

Cl.OC(=O)[C@@H]([C@H]1CCCCN1)C2=CC=CC=C2

InChI

InChIKey=SCUMDQFFZZGUQY-MNMPKAIFSA-N
InChI=1S/C13H17NO2.ClH/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);1H/t11-,12-;/m1./s1

HIDE SMILES / InChI

Molecular Formula ClH
Molecular Weight 36.461
Charge 0
Count
Stereochemistry ACHIRAL
Additional Stereochemistry No
Defined Stereocenters 0 / 0
E/Z Centers 0
Optical Activity NONE

Molecular Formula C13H17NO2
Molecular Weight 219.2796
Charge 0
Count
Stereochemistry RACEMIC
Additional Stereochemistry No
Defined Stereocenters 2 / 2
E/Z Centers 0
Optical Activity UNSPECIFIED

Ritalinic acid is an inactive, major metabolite of methylphenidate, a schedule II drug in the United States commonly used as a psychostimulant drugs methylphenidate and ethylphenidate. The elimination half-life of methylphenidate is relatively short (approximately 2 hours); therefore it is also available in extended release (ER) forms. The main metabolite is ritalinic acid, and the methylphenidate metabolites are mostly excreted in urine.

Approval Year

Conditions

Conditions

ConditionModalityTargetsHighest PhaseProduct
PubMed

PubMed

TitleDatePubMed
Biotransformation of ritalinic acid by laccase in the presence of mediator TEMPO.
2018-07-25
Metabolomics of Methylphenidate and Ethylphenidate: Implications in Pharmacological and Toxicological Effects.
2017-02
Identification of selected therapeutic agents as inhibitors of carboxylesterase 1: potential sources of metabolic drug interactions.
2010-04-11
A single-dose, two-way crossover, bioequivalence study of dexmethylphenidate HCl with and without food in healthy subjects.
2004-02
Patents

Sample Use Guides

In Vivo Use Guide
Unknown
Route of Administration: Unknown
In Vitro Use Guide
Unknown
Substance Class Chemical
Created
by admin
on Wed Apr 02 05:32:35 GMT 2025
Edited
by admin
on Wed Apr 02 05:32:35 GMT 2025
Record UNII
MK6CT5PX5D
Record Status Validated (UNII)
Record Version
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Name Type Language
RITALINIC ACID HYDROCHLORIDE, D-THREO-
Common Name English
D-THREO-RITALINIC ACID HYDROCHLORIDE
Preferred Name English
METHYLPHENIDATE ACID HYDROCHLORIDE, D-
Common Name English
2-PIPERIDINEACETIC ACID, .ALPHA.-PHENYL-, HYDROCHLORIDE (1:1), (.ALPHA.R,2R)-
Systematic Name English
2-PIPERIDINEACETIC ACID, .ALPHA.-PHENYL-, HYDROCHLORIDE, (.ALPHA.R,2R)-
Systematic Name English
Code System Code Type Description
FDA UNII
MK6CT5PX5D
Created by admin on Wed Apr 02 05:32:35 GMT 2025 , Edited by admin on Wed Apr 02 05:32:35 GMT 2025
PRIMARY
CAS
741705-70-4
Created by admin on Wed Apr 02 05:32:35 GMT 2025 , Edited by admin on Wed Apr 02 05:32:35 GMT 2025
PRIMARY
PUBCHEM
49801997
Created by admin on Wed Apr 02 05:32:35 GMT 2025 , Edited by admin on Wed Apr 02 05:32:35 GMT 2025
PRIMARY
Related Record Type Details
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