IsopropylPhenidate (IPPH) 25 MG Pellets
$15.95 – $459.95Price range: $15.95 through $459.95
IPPH pellets properties
Synonym: Isopropylphenidate
CAS Number: 93148-46-0
Formula: C₁₆H₂₃NO₂
Molar mass: 261,365 g
Purity: >98%
| Quantity | 10 Pellets, 20 Pellets, 30 Pellets, 50 Pellets, 100 Pellets, 250 Pellets, 500 Pellets |
|---|
buy isopropylphenidate (IPPH) online
Full Chemical Specifications — Every Verified Parameter
| Specification | Verified Value |
|---|---|
| Product Name | IsopropylPhenidate (IPPH) |
| Systematic IUPAC Name | Isopropyl 2-phenyl-2-[(1-piperidinyl)carbonyl]acetate |
| Common Synonyms | IPPH, Isopropyl Methylphenidate, Isopropylphenidate, α-Phenyl-1-piperidineacetic acid isopropyl ester |
| Chemical Class | Piperidine derivative; phenidate-class dopamine reuptake inhibitor; Methylphenidate homolog/analog |
| Molecular Formula | C₁₆H₂₃NO₃ |
| Molecular Weight | 277.36 g/mol |
| CAS Registry Number | 191790-79-1 |
| Appearance | White to off-white crystalline powder |
| Purity Grade | Research Grade — ≥98% by HPLC (premium batches typically ≥99%) |
| Solubility | Freely soluble in organic solvents: methanol, ethanol, DMSO, dichloromethane; soluble in water with mild heating or acidification; hydrochloride salt offers superior aqueous solubility |
| Recommended Storage | Store at -20°C long-term or 2–8°C for working inventory; keep in amber airtight container protected from moisture and light |
| Stability | Minimum 2 years under recommended sealed frozen conditions; significantly more stable than Methylphenidate due to isopropyl ester resistance to hydrolysis |
| Hygroscopy | Low to moderate—keep sealed with desiccant once opened |
| Salt Form | Typically supplied as free base or research-grade hydrochloride salt—confirm exact form before dosing calculations; molecular weight differs accordingly |
| Quality Verification | Identity confirmed via NMR spectroscopy, purity quantified via HPLC, mass spectrometry matching molecular ion peak, heavy metal and microbial screening, and batch-specific Certificate of Analysis (CoA) issued |
Structural Chemistry: The Isopropyl Advantage
- ✅ Enhanced Metabolic Stability: The defining structural modification—replacing the methyl ester (-OCH₃) of methylphenidate with a bulkier isopropyl ester (-OCH(CH₃)₂)—dramatically alters how the compound interacts with liver esterase enzymes. The isopropyl group creates steric hindrance that slows enzymatic hydrolysis, meaning IPPH survives longer in circulation and maintains more stable blood levels compared to the rapidly metabolized methyl ester parent.
- ✅ Altered Transporter Binding Kinetics: The larger ester group subtly changes molecular conformation at the dopamine transporter binding pocket—improving residence time and producing a longer duration of action with potentially smoother onset and offset compared to methylphenidate’s sharper peaks and faster decline.
- ✅ Reduced First-Pass Variability: Because IPPH resists rapid presystemic metabolism, oral bioavailability may be less variable across subjects and less affected by liver function differences — a critically important property that simplifies research data interpretation.
- ✅ Predictable Dose-Response: Improved metabolic stability means fewer active metabolites and a cleaner pharmacokinetic profile — essentially reducing experimental noise in studies measuring catecholamine dynamics, behavior, and cognitive endpoints.
Mechanism of Action — Pharmacology at the Molecular Level
🧠 Primary Mechanisms
- ✅ Dopamine Transporter (DAT) Inhibition: IPPH binds competitively to the dopamine transporter, blocking the reuptake of dopamine from the synaptic cleft back into presynaptic neurons. This prolongs and amplifies dopamine’s action at postsynaptic receptors—producing enhanced motivation, alertness, reward signaling, motor control, and cognitive focusing. Published binding data confirm potent DAT affinity comparable to or exceeding that of methylphenidate.
- ✅ Norepinephrine Transporter (NET) Activity: IPPH also demonstrates meaningful affinity at the norepinephrine transporter, producing concurrent elevation of central norepinephrine levels. This contributes to arousal, vigilance, attentional control, and prefrontal cortical executive function — creating a balanced stimulant profile rather than pure dopaminergic activation.
- ✅ Serotonin Transporter (SERT) — Negligible Activity: Like other phenidate-class compounds, IPPH shows essentially no meaningful affinity for the serotonin transporter at behaviorally relevant concentrations. This absence of serotonergic activity distinguishes the phenidate class from MDMA-like compounds and many antidepressants—eliminating confounding serotonergic variables from your experimental design.
📊 Comparative Pharmacology Profile
| Target | IsopropylPhenidate (IPPH) | Methylphenidate (MPH) | Amphetamine |
|---|---|---|---|
| Dopamine Transporter (DAT) | ⬜⬜⬜⬜ Potent | ⬜⬜⬜⬜ Potent | ⬜⬜⬜⬜⬜ Potent |
| Norepinephrine Transporter (NET) | ⬜⬜⬜ Moderate–Potent | ⬜⬜⬜ Moderate–Potent | ⬜⬜⬜⬜ Potent |
| Serotonin Transporter (SERT) | ⬜ Negligible | ⬜ Negligible | ⬜⬜⬜⬜⬜ Potent |
| Estimated Duration of Action | ~6–10 hours | ~3–5 hours | ~4–8 hours |
| Metabolic Stability | High (isopropyl ester) | Moderate (methyl ester) | High |
| Mechanism Type | Reuptake Inhibitor | Reuptake Inhibitor | Releasing Agent |
| Onset Profile | Slower, smoother peak | Faster peak | Variable |
🔑 The Big Picture
Key Research Applications — Why IPPH Is Indispensable
🧪 Dopamine Transporter Structure–Activity Relationship Studies
⚡ Improved Stimulant Design — Ester Modification and Duration Optimization
🧠 Cognitive Activation and Attention Research
🛡️ Abuse Potential and Therapeutic Index Investigations
🔬 Hepatic Metabolism and Esterase Substrate Specificity Research
Handling, Storage, and Laboratory Protocols — Preserve Integrity and Validity
✅ Storage Guidelines
- Long-term storage: Maintain at -20°C in a dark, airtight amber glass container with a Teflon-lined cap. Backfill with dry nitrogen or argon after each opening.
- Working inventory: Store at 2–8°C for routine access; minimize opening to ambient air and moisture.
- Avoid: Heat above 30°C, direct UV light, prolonged ambient exposure, and strongly acidic or basic conditions that may hydrolyze the ester linkage.
- Shelf life: Minimum 2 years under sealed frozen conditions; approximately 6 months refrigerated with regular handling. Moisture accelerates ester hydrolysis—desiccant recommended.
✅ Solution Preparation and Stability
- Solubility: Free base dissolves in DMSO, methanol, ethanol, and organic solvents. Hydrochloride salt dissolves readily in water and physiological buffers—ideal for aqueous dosing solutions.
- Solution stability: Aqueous solutions are most stable at neutral to slightly acidic pH (pH 5–7). Avoid strong bases—rapid hydrolysis occurs. Prepare fresh aqueous solutions every 48–72 hours if refrigerated; organic solvent stocks remain stable frozen for ≥3 months.
- Aliquoting: Divide powder into single-use aliquots upon receipt to avoid repeated freeze–thaw cycles and moisture introduction. Weigh rapidly and immediately reseal the primary container.
⚠️ Safety Protocols
- PPE required: nitrile gloves, safety goggles, and a fully buttoned lab coat. Work inside a fume hood when transferring powder to avoid inhalation and skin contact.
- Research use only: Not approved for human consumption, clinical administration, or off-label application.
- Dispose of all waste as hazardous controlled organic waste per institutional guidelines and local regulatory requirements.
- Exercise caution in combined-protocol research — IPPH may interact synergistically with other catecholaminergic agents, MAO inhibitors, and sympathomimetics.
Sourcing and Quality Assurance — How to Identify Authentic IsopropylPhenidate (IPPH)
✅ What Authentic Suppliers Must Provide
- ✅ Correct CAS Confirmation: CAS 191790-79-1 — verify this number explicitly. Related phenidate analogs carry different CAS numbers; confusion is common and produces entirely incorrect data.
- ✅ Identity Confirmation: NMR spectrum matching reference standards—critical for distinguishing IPPH from methylphenidate, ethylphenidate, and other ester homologs.
- ✅ Purity ≥98% by HPLC: Actual chromatogram showing single dominant peak; no significant degradation peaks or synthetic intermediates present.
- ✅ Mass Spectrometry Verification: Molecular ion peak matching C₁₆H₂₃NO₃ molecular weight 277.36 g/mol.
- ✅ Batch-Specific CoA: Issued with every order listing appearance, solubility, assay result, moisture content, and storage recommendation.
- ✅ Salt Form Clarity: Clearly state whether it is supplied as a free base or hydrochloride salt—confirm the molecular weight matches your calculations.
- ✅ Transparent pricing, discreet vacuum-sealed amber vial packaging, secure payment processing, and trackable insured shipping.
✅ Evaluating Price and Value
⚠️ Red Flags — Walk Away If You See These
- ❌ Lists incorrect CAS number or mismatched molecular formula → selling the wrong analog
- ❌ Cannot provide HPLC/NMR/MS data before purchase → material untested or impure
- ❌ Vague purity claims like “>99% pure” with no methodology or batch numbers
- ❌ Suspiciously low prices → racemic mixture, degraded ester, or mislabeled Methylphenidate
- ❌ Refuses to confirm salt form or enantiomeric composition → dosing errors inevitable
- ❌ Only accepts untraceable payment methods → zero buyer protection
✅ Final Purchasing Guidance
Frequently Asked Questions — Essential Details Every Researcher Must Confirm
❓ Is IPPH the same as Methylphenidate or Ethylphenidate?
Chemically related but distinctly different. All three share the phenidate backbone—they differ ONLY in the ester group: Methylphenidate = methyl ester; Ethylphenidate = ethyl ester; IPPH = isopropyl ester. That single structural change alters half-life, stability, onset, duration, and potency — especially in vivo — in measurable ways. They are NOT interchangeable; confirm your analogue before ordering. Always verify CAS 191790-79-1 for IPPH specifically.
❓ Should I order free base or hydrochloride salt?
Depends entirely on your application. Hydrochloride salt dissolves easily in water and physiological buffers—ideal for in vivo dosing and aqueous assays. Freebase dissolves better in organic solvents—preferable for HPLC calibration, organic-phase chemistry, and lipophilic formulation research. ALWAYS confirm which form you are ordering—molecular weight differs, and dosing errors are common across phenidate analogues.
- ≥97% racemic → preliminary screening, teaching labs, crude behavioral observation
- ≥98% HPLC (enantiopure preferred) → standard publication-grade research; minimum acceptable for transporter pharmacology
- ≥99% + full NMR/MS + confirmed enantiomeric ratio → definitive binding assays, SAR studies, reference calibration standards
- ⚠️ Phenidate enantiomers differ dramatically in potency—the d-threo isomer carries essentially all activity. Impure or racemic material produces misleadingly low affinity data. Confirm enantiomeric composition with your supplier.
❓ How long will IPPH remain usable?
Sealed at -20°C, protected from moisture and light: ≥2 years. Opened and refrigerated with regular handling: approximately 6 months. Aqueous solutions: use within 48–72 hours. The isopropyl ester is far more resistant to hydrolysis than methyl or ethyl esters—but moisture + heat + acid/base will still cleave it back to the parent carboxylic acid. Keep it dry, cold, and sealed.
❓ Does IPPH release serotonin or have serotonin activity?
No meaningful affinity or activity at SERT has been reported for IPPH—like methylphenidate, it is essentially a pure catecholamine reuptake inhibitor. This absence of serotonergic confounds is one of its primary research advantages—it lets you study dopamine–norepinephrine effects without worrying about SERT cross-signaling. Always cite the specific analytical literature in your methodology section.
❓ Is IPPH approved for human use?
No regulatory approval anywhere. IPPH is an investigational analog — it has never been commercialized or clinically approved. It is sold and supplied exclusively for laboratory research, forensic reference, and educational investigation — NOT for consumption, prescription, or off-label administration. All handling requires institutional review, safety protocols, and appropriate authorization.

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Final Summary — Authenticity and Purity Define Your Research Value
✅ Order IsopropylPhenidate IPPH online only from verified suppliers providing full HPLC/NMR/MS verification and confirming CAS 191790-79-1
✅ Insist on premium grade IPPH guaranteed purity ≥98% with batch-specific documentation and confirmed enantiomeric composition
✅ Secure the best price IsopropylPhenidate IPPH bulk through legitimate volume suppliers without compromising quality standards
✅ Always confirm salt form, molecular weight, and exact analog identity before finalizing any order
✅ Source from transparent, specialized vendors when determining where to buy authentic IsopropylPhenidate IPPH research material
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