Methylphenidate (INN) and its salts
New Zealand Cosmetic Products Group Standard Schedule 4, reference 175.
Regulatory decision and full conditions
- Status
- Prohibited
- Legal role
- Binding rule
- Regulatory summary
- New Zealand Cosmetic Products Group Standard Schedule 4, reference 175.
- Conditions and restrictions
- A prohibition entry may contain no separate condition text because the regulatory outcome is the prohibition itself. Open the cited source and apply the market-wide requirements below.
Substance identity
- Official source name
- Methylphenidate (INN) and its salts
- CAS
- 113-45-1
- EC
- Not supplied in this source row
- Identity mapping
- standalone:official_nz_schedule
Cross-market snapshot for this identity
Exact linked records currently present in this site. An absent market means no imported exact match, not permission to use the substance.
European Union
1 linked record
Open supporting recordGreat Britain
1 linked record
Open supporting recordCanada
1 linked record
Open supporting recordNew Zealand
Current record1 linked record
Open supporting recordASEAN
1 linked record
Open supporting recordChina
1 linked record · 1 with specific conditions
Open supporting recordSouth Korea
1 linked record · 1 with specific conditions
Open supporting recordBrazil
1 linked record · 1 with specific conditions
Open supporting recordIndia
1 linked record · 1 with specific conditions
Open supporting recordSaudi Arabia
1 linked record
Open supporting recordVerified chemistry for CAS 113-45-1
Methylphenidate
- IUPAC name
- methyl 2-phenyl-2-piperidin-2-ylacetate
- Molecular formula
- C14H19NO2
- Molecular weight
- 233.31 g/mol
- Exact mass
- 233.141578849 Da
- Monoisotopic mass
- 233.141578849 Da
- XLogP3
- 0.2
- Topological polar surface area
- 38.3 Ų
- Molecular complexity
- 249.0
- Formal charge
- 0
- Hydrogen-bond donors
- 1
- Hydrogen-bond acceptors
- 3
- Rotatable bonds
- 4
- Heavy atoms
- 17
- Covalent units
- 1
Names and synonyms reported to PubChem
16 more reported names
External database identifiers
Advanced structure statistics
- Defined atom stereocentres
- 0
- Undefined atom stereocentres
- 2
- Defined bond stereocentres
- 0
- Undefined bond stereocentres
- 0
- 3D pharmacophore features
- 5
- 3D rings
- 2
- 3D hydrophobes
- 0
- 3D acceptor features
- 1
- 3D donor features
- 1
- 3D anionic centres
- 0
- 3D cationic centres
- 1
- 3D conformers
- 10
- Effective 3D rotors
- 5.2
Machine-readable structure identifiers
- SMILES
COC(=O)C(C1CCCCN1)C2=CC=CC=C2- InChI
InChI=1S/C14H19NO2/c1-17-14(16)13(11-7-3-2-4-8-11)12-9-5-6-10-15-12/h2-4,7-8,12-13,15H,5-6,9-10H2,1H3- InChIKey
DUGOZIWVEXMGBE-UHFFFAOYSA-N
Evidence from additional scientific databases
NIH PubChem PUG-View
Attributed physical-property, hazard, environmental and use annotations.
- Boiling Point: BP: 135 to 137 °C at 0.6 mm Hg Source: Hazardous Substances Data Bank (HSDB)
- Color/Form: Crystals from ethanol (aqueous) Source: Hazardous Substances Data Bank (HSDB)
- Dissociation Constants: pKa = 8.9 Source: Hazardous Substances Data Bank (HSDB)
- Dissociation Constants: pKa = 8.77 Source: Hazardous Substances Data Bank (HSDB)
- LogP: log Kow = 0.20 at pH 7.2 Source: Hazardous Substances Data Bank (HSDB)
- LogP: 2.1 Source: Human Metabolome Database (HMDB)
- Melting Point: 74-75 °C Source: Hazardous Substances Data Bank (HSDB)
- Melting Point: 224 - 226 °C Source: Human Metabolome Database (HMDB)
- Physical Description: Solid Source: Human Metabolome Database (HMDB)
- Solubility: 1255mg/L Source: DrugBank
- Solubility: Practically insoluble in water Source: Hazardous Substances Data Bank (HSDB)
- Solubility: Soluble in alcohol, ethyl acetate, ether; practically insoluble in petroleum ether Source: Hazardous Substances Data Bank (HSDB)
- Solubility: 1.82e-01 g/L Source: Human Metabolome Database (HMDB)
- Carcinogen Classification: No indication of carcinogenicity to humans (not listed by IARC). Source: Toxin and Toxin Target Database (T3DB)
- Exposure Routes: Oral. Readily absorbed in a biphasic manner when orally administered (tablets) to children diagnosed with ADHD and to healthy adults. In children and adults males, after administration of a single oral dose of Ritalin LA and Ritalin given in two doses 4 hours apart, peak plasma concentration is reached approximately 2 hours for the first phase and 5-6 hours for the second phase. The absolute oral bioavailability of methylphenidate in children was 22±8% for d-methylphenidate and 5±3% for l-methylphenidate. These low values suggest that methylphenidate is highly metabolized presystemically. Source: Toxin and Toxin Target Database (T3DB)
- Signal: Warning Source: European Chemicals Agency (ECHA)
- GHS Hazard Statements: H302 (100%): Harmful if swallowed [Warning Acute toxicity, oral]; H315 (100%): Causes skin irritation [Warning Skin corrosion/irritation]; H319 (100%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]; H341 (100%): Suspected of causing genetic defects [Warning Germ cell mutagenicity] Source: European Chemicals Agency (ECHA)
- Precautionary Statement Codes: P203, P264, P264+P265, P270, P280, P301+P317, P302+P352, P305+P351+P338, P318, P321, P330, P332+P317, P337+P317, P362+P364, P405, and P501 (click each P-code to see the statement) Source: European Chemicals Agency (ECHA)
- ECHA C&L Notifications Summary: The GHS information provided by 1 company from 1 notification to the ECHA C&L Inventory. Source: European Chemicals Agency (ECHA)
- Signal: Danger Source: Hazardous Substances Data Bank (HSDB)
- GHS Hazard Statements: H302: Harmful if swallowed [Warning Acute toxicity, oral]; H334: May cause allergy or asthma symptoms or breathing difficulties if inhaled [Danger Sensitization, respiratory] Source: Hazardous Substances Data Bank (HSDB)
- Precautionary Statement Codes: P233, P260, P264, P270, P271, P284, P301+P317, P304+P340, P330, P342+P316, P403, and P501 (click each P-code to see the statement) Source: Hazardous Substances Data Bank (HSDB)
- Health Effects: Using large amounts of these drugs can result in a condition known as amphetamine psychosis -- which can result in auditory, visual and tactile hallucinations, intense paranoia, irrational thoughts and beliefs, delusions, and mental confusion. Source: Toxin and Toxin Target Database (T3DB)
- Toxicity Summary: IDENTIFICATION AND USE: Methylphenidate Hydrochloride is a psychostimulant used to treat different behavioral disorders. Indications: Used to treat narcolepsy and hyperkinetic states in children (as an adjunct to psychological, educational and social measures) for amphetamine, dextroamphetamine and ethylphenidate. It is misused for performance enhancement and relief of fatigue. Abuse either orally or by injection is extremely common. HUMAN EXPOSURE AND TOXICITY: Main risks include: Acute central nervous system (CNS) stimulation, cardiotoxicity causing tachycardia, arrhythmias, hypertension and cardiovascular collapse. High risk of dependency and abuse. Cardiovascular effects include: palpitation, chest pain, tachycardia, arrhythmias and hypertension; cardiovascular collapse can occur in severe poisoning. Myocardial ischemia, infarction and ventricular dysfunction are described. CNS effects include: stimulation of CNS, tremor, restlessness, agitation, insomnia, increased motor activity, headache, convulsions, coma and hyperreflexia. Stroke and cerebral vasculitis have been observed. Gastrointestinal effects include: vomiting, diarrhea and cramps. Genitourinary effects include: incre Source: Hazardous Substances Data Bank (HSDB)
- Toxicity Summary: The first step in a medication overdose is to immediately contact a poison control center for the appropriate management steps. Doses that exceed 60 mg of the immediate-release formulation or 120 mg of the extended-release formulation can be considered toxic. If the overdosed quantity is unknown, the patient should be assessed for signs and symptoms such as tremors, hyperreflexia, convulsions, euphoria, confusion, hallucinations, delirium, flushing, and fever, in addition to the common adverse effects mentioned above. Supportive care with supplemental oxygen, intravenous fluids, and external cooling methods is the mainstay of treatment. Multiple studies have shown that benzodiazepines are an option, especially if dystonia, agitation, or convulsions are present. Source: StatPearls
- Toxicity Summary: Methylphenidate blocks dopamine uptake in central adrenergic neurons by blocking dopamine transport or carrier proteins. Methylphenidate acts at the brain stem arousal system and the cerebral cortex and causes increased sympathomimetic activity in the central nervous system. Alteration of serotonergic pathways via changes in dopamine transport may result. Source: Toxin and Toxin Target Database (T3DB)
- Environmental Bioconcentration: An estimated BCF of 3 was calculated in fish for methylphenidate(SRC), using a log Kow of 0.20(1) and a regression-derived equation(2). According to a classification scheme(2), this BCF suggests the potential for bioconcentration in aquatic organisms is low(SRC). Source: Hazardous Substances Data Bank (HSDB)
- Environmental Fate: TERRESTRIAL FATE: Based on a classification scheme(1), an estimated Koc value of 1600(SRC), determined from a structure estimation method(2), indicates that methylphenidate is expected to have low mobility in soil(SRC). The pKa of methylphenidate is 8.9(3), indicating that this compound will exist partially in the cation form in the environment and cations generally adsorb more strongly to soils containing organic carbon and clay than their neutral counterparts(4). Volatilization of the neutral species of methylphenidate from moist soil surfaces is not expected to be an important fate process(SRC) given an estimated Henry's Law constant of 4.4X10-9 atm-cu m/mole(SRC), using a fragment constant estimation method(5). Methylphenidate is not expected to volatilize from dry soil surfaces(SRC) based upon an estimated vapor pressure of 5.9X10-5 mm Hg at 25 °C(SRC), determined from a fragment constant method(2). Biodegradation data in soil were not available(SRC, 2015). Source: Hazardous Substances Data Bank (HSDB)
- Environmental Fate: AQUATIC FATE: Based on a classification scheme(1), an estimated Koc value of 1600(SRC), determined from a structure estimation method(2), indicates that methylphenidate is expected to adsorb to suspended solids and sediment(SRC). Volatilization of the neutral species from water surfaces is not expected(3) based upon an estimated Henry's Law constant of 4.4X10-9 atm-cu m/mole(SRC), developed using a fragment constant estimation method(4). A pKa of 8.9(5) indicates methylphenidate will exist partially in the cation form at pH values of 5 to 9 and, therefore, volatilization from water surfaces is not expected to be an important fate process(SRC). According to a classification scheme(6), an estimated BCF of 3(SRC), from its log Kow of 0.20(7) and a regression-derived equation(2), suggests the potential for bioconcentration in aquatic organisms is low(SRC). Base-catalyzed second-order hydrolysis rate constant half-lives of 23 and 2.3 years at pH values of 7 and 8, respectively(2), suggest that hydrolysis may be a slow environmental fate process. Biodegradation data in water were not available(SRC, 2015). Source: Hazardous Substances Data Bank (HSDB)
- Environmental Fate: ATMOSPHERIC FATE: According to a model of gas/particle partitioning of semivolatile organic compounds in the atmosphere(1), methylphenidate, which has an estimated vapor pressure of 5.9X10-5 mm Hg at 25 °C(SRC), determined from a fragment constant method(2), will exist in both the vapor and particulate phases in the ambient atmosphere. Vapor-phase methylphenidate is degraded in the atmosphere by reaction with photochemically-produced hydroxyl radicals(SRC); the half-life for this reaction in air is estimated to be 1 hr(SRC), calculated from its rate constant of 1.1X10-10 cu cm/molecule-sec at 25 °C(SRC) that was derived using a structure estimation method(3). Particulate-phase methylphenidate may be removed from the air by wet and dry deposition(SRC). Methylphenidate contains chromophores that absorb at wavelengths >290 nm(4) and, therefore, may be susceptible to direct photolysis by sunlight(SRC). Source: Hazardous Substances Data Bank (HSDB)
- Uses: Methylphenidate (DEA Code Number: 1724) is a Schedule II controlled substance. Source: Hazardous Substances Data Bank (HSDB)
- Uses: Schedule II Controlled Substance: (A) The drug or other substance has a high potential for abuse; (B) The drug or other substance has a currently accepted medical use in treatment in the United States or a currently accepted medical use with severe restrictions; and (C) Abuse of the drug or other substances may lead to severe psychological or physical dependence. Source: Hazardous Substances Data Bank (HSDB)
- Uses: MEDICATION (VET) Source: Hazardous Substances Data Bank (HSDB)
- Uses: MEDICATION Source: Hazardous Substances Data Bank (HSDB)
- Uses: Central Nervous System Stimulants; Dopamine Uptake Inhibitors Source: Hazardous Substances Data Bank (HSDB)
- Uses: Use (kg) in Switzerland (2009): >250; Use (kg; approx.) in Germany (2009): >1000; Use (kg) in USA (2002): 9090; Consumption (g per capita) in Switzerland (2009): 0.032; Consumption (g per capita; approx.) in Germany (2009): 0.012; Consumption (g per capita) in the USA (2002): 0.032; Excretion rate: 0.1; Calculated removal (%): 92.1 Source: NORMAN Suspect List Exchange
- Uses: For use as an integral part of a total treatment program which typically includes other remedial measures (psychological, educational, social) for a stabilizing effect in children with a behavioral syndrome characterized by the following group of developmentally inappropriate symptoms: moderate-to-severe distractibility, short attention span, hyperactivity, emotional lability, and impulsivity. Source: Toxin and Toxin Target Database (T3DB)
Mapped by: Existing checksum-valid CAS to unique PubChem CID match. Retrieved: 2026-08-31. Open source record
Scientific classifications and hazard annotations provide context and do not replace the market-specific regulatory decision shown above.
Additional source coverage and match status
| Source | Result | Checked |
|---|---|---|
| NIH PubChem PUG-View | Exact match | 2026-08-31 |
A recorded no-match is useful evidence that the source was checked; it is not a claim that the substance does not exist elsewhere.
Retrieved from NIH PubChem on 2026-08-31 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.
Official source and provenance
- Registered source
- New Zealand cosmetic product schedules 4–8
- Source reference
- Schedule 4, reference 175, source row 181
- Source record ID
S4-181- Source version
- effective-2026-01-01
- Source language
- English
- Translation status
- Original is English
- Effective date
- 2026-01-01
- Source updated
- 2024-01-01
- Snapshot checked
- 2026-08-30 04:54 UTC
- Validation method
- openpyxl extraction; reviewed per-schedule counts
- SHA-256
4e62e372fb0aad7ac630af8c41fa50b38b52a793fd51b99697a65f8ecce1ae8a
Registered dataset notes
- Dataset coverage
- Prohibited and restricted substances, permitted colorants, preservatives and UV filters
- Authority note
- Official EPA group standard schedules; current market-specific rule source
How this record fits the market dataset
Status distribution
Condition text is present on 747 of 2913 current records. An empty condition field is interpreted according to the record type above; it is never converted into an unrestricted-use claim.
New Zealand market context
Complete schedules dataset
Coverage version: Cosmetic Products Group Standard schedules effective 1 January 2026
Schedules 4–8: prohibited, restricted, colourant, preservative and UV-filter entries.
Verification checklist
- Search exact identity across Schedules 4–8.
- Apply use, concentration and warning conditions.
- Check hazardous-substance classification and Group Standard scope.
- Confirm the latest legal instrument, not only the spreadsheet.
Official market sources
- New Zealand cosmetic product schedules 4–8Official EPA group standard schedules; current market-specific rule source
Verification workflow and record completeness
Before using this result in a compliance decision
- Confirm that “Methylphenidate (INN) and its salts” and every CAS/EC identifier refer to the material in your supplier specification.
- Search exact identity across Schedules 4–8.
- Apply use, concentration and warning conditions.
- Check hazardous-substance classification and Group Standard scope.
- Confirm the latest legal instrument, not only the spreadsheet.
- Document the source version and recheck the regulator before manufacture, notification or market placement.
Fields available in this record
- Official substance nameAvailable
- CASAvailable
- ECNot supplied
- Separate condition textNot present in source row
- Effective dateAvailable
- Snapshot hash and methodAvailable
Questions this page answers
Stable citation
Methylphenidate (INN) and its salts. Schedule 4, reference 175, source row 181. New Zealand. Source version effective-2026-01-01. CosIng Checker regulatory record: https://cosingchecker.com/regulations/nz/records/6864/
Cite the regulator as the legal authority. This page is a structured evidence index and verification aid, not a substitute for the official text or professional legal assessment.
Interpretation and limits for New Zealand
This official record identifies the substance as prohibited for cosmetic use in the stated market scope.
Do not rely on a formulation containing this identity until the cited source, effective date and exact substance match have been verified.
How to interpret the legal role
The cited row forms part of a binding rule or legally incorporated list for this market.
Evidence on this page
- Recorded outcome: Prohibited
- Legal role: Binding rule
- Source version: effective-2026-01-01
- Effective date: 2026-01-01
What it does not prove
The searchable spreadsheet is an aid; the legal Group Standard and incorporated notices remain authoritative.
Further authoritative substance research
These sources can add identity, safety, exposure or hazard context. A link is not evidence that the database contains this exact substance, and none of these sources overrides the market decision above.
Cosmetic Ingredient Review safety assessments
Expert Panel conclusions, assessed ingredient groups, use conditions, dates and report documents
Independent expert review considered by FDA; not a government approval or binding market rule
Research this identity at the sourceFDA Global Substance Registration System
UNII identifiers, preferred names, substance types, codes and public substance relationships
Identity registry only; UNII availability does not imply FDA review or approval
Research this identity at the sourceILO/WHO International Chemical Safety Cards
Hazards, symptoms, first aid, storage, incompatibilities and physical properties for covered chemicals
International occupational chemical-safety reference; not cosmetic-use approval
Research this identity at the sourceJapan NITE-CHRIP
Chemical identity, Japanese and foreign legal lists, GHS hazards and exposure-related information
Chemical-management evidence; cosmetic status remains governed by the applicable MHLW standard and market rules
Research this identity at the sourceNIOSH Pocket Guide to Chemical Hazards
REL, PEL, IDLH, properties, exposure routes, symptoms, target organs, first aid and measurement methods for covered workplace chemicals
US occupational-health guidance and limits; not a cosmetic ingredient decision
Research this identity at the sourceOECD eChemPortal
Gateway to authority-owned physical-property, fate, ecotoxicity, toxicity, exposure and GHS records
Discovery gateway; each linked authority remains responsible for its data
Research this identity at the sourceUS EPA CompTox CTX APIs
API key required for importDTXSID identity, experimental and predicted properties, toxicity, bioactivity, exposure and environmental data
Scientific and computational evidence; predictions must remain labelled and do not determine cosmetic legality
Research this identity at the source