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23-June-2015
New from Cerilliant - stable-labeled internal standards of the stimulants (±)-threo-Methylphenidate-D4 HCl and  (±)-threo-Ritalinic acid-D4.

(±)-threo-Ritalinic acid-D4 R-025
100 µg/mL (as free base) in Methanol

This stable-labeled internal standard of (±)-threo-ritalinic acid is suitable for a wide variety of GC/MS and LC/MS applications from clinical toxicology and urine drug testing to forensic analysis and isotope dilution methods. Ritalinic acid is the major urinary metabolite of methylphenidate, more commonly known by the brand name Ritalin that is approved for treatment of ADHD (Attention-Deficit Hyperactivity Disorder) and narcolepsy. 

(±)-threo-Methylphenidate-D4 M-185
100 µg/mL (as free base) in Methanol

This internal standard is suitable for quantitation of methylphenidate levels in urine, serum or plasma by LC/MS or GC/MS for urine drug testing, clinical toxicology or forensic analysis. Methylphenidate is a psychostimulant that is sold under trade names Concerta and Ritalin. The drug is prescribed for the treatment of attention-deficit hyperactivity disorder (ADHD), tachycardia and narcolepsy. 



Cerilliant Certified Solution Standards and Certified Spiking Solutions are manufactured to the highest industry standards. We are accredited to ISO Guide 34 and ISO/IEC 17025 & certified to ISO 13485 and ISO 9001. Our quality system also incorporates cGMP and GLP requirements


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