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(a.k.a., Ritalin) is a schedule II drug in the United States commonly used as a psychostimulant for the treatment of attention-deficit hyperactivity disorder (ADHD). Upon ingestion, methylphenidate is predominantly stereoselectively deesterified to the inactive metabolite ritalinic acid. Ethylphenidate is a minor metabolite of methylphenidate formed readily in the presence of ethanol. This metabolite is believed to have appreciable dopamine transporter binding activity (i.e., through the uptake inhibition of impulse released dopamine), which would underlie potential central nervous system stimulant effects.Ethylphenidate was reportedly detected in two overdose victims who had ingested large quantities of methylphenidate with evidence of ethanol consumption. This product is intended only for use as an internal standard for methylphenidate quantitation from biological samples or for biological or pharmacokinetic research studies.


  • Ritalinic Acid ethyl ester

Formal Name α-​phenyl-​2-​piperidineacetic acid,​ ethyl ester,​ monohydrochloride
CAS Number 19716-79-1
Molecular Formula C15H21NO2 • HCl
Formula Weight 283.8
Formulation A crystalline solid
Purity ≥98%
Stability 2 years
Storage -20°C
Product Rating:
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Thanks, i hope the product is very fine
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Once again, success with this company. Shipping took a long time because a certain country King resigned, so their postal service was slow as hell. But product arrived perfectly labeled and extremely potent. Research gave great results. a-PVP is absurdly good and stable. 5-MAPB is god damn speechless. Keep up the good work. Regs,
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Comment: Boonman,
Comment: Veerkamp,
allways best
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