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ProhibitedBinding ruleKRNo English translationOfficial-source import checked

N,N,N',N-테트라메칠-4,4'-메칠렌디아닐린

Listed by the Korean MFDS as a substance that may not be used in cosmetics.

All South Korea recordsCompare all marketsOpen official source

Regulatory decision and full conditions

Status
Prohibited
Legal role
Binding rule
Regulatory summary
Listed by the Korean MFDS as a substance that may not be used in cosmetics.
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
N,N,N',N-테트라메칠-4,4'-메칠렌디아닐린
CAS
101-61-1
EC
Not supplied in this source row
Identity mapping
standalone:official_korean_name
Search this identity across the siteCAS 101-61-1

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.

8 market datasets
PubChem 2D chemical structure for CAS 101-61-1
CAS 101-61-1PubChem CID 7567

Verified chemistry for CAS 101-61-1

Bis(p-(dimethylamino)phenyl)methane

IUPAC name
4-[[4-(dimethylamino)phenyl]methyl]-N,N-dimethylaniline
Molecular formula
C17H22N2
Molecular weight
254.37 g/mol
Exact mass
254.178298710 Da
Monoisotopic mass
254.178298710 Da
XLogP3
3.9
Topological polar surface area
6.5 Ų
Molecular complexity
220.0
Formal charge
0
Hydrogen-bond donors
0
Hydrogen-bond acceptors
2
Rotatable bonds
4
Heavy atoms
19
Covalent units
1

Names and synonyms reported to PubChem

4,4'-Methylenebis(N,N-dimethylaniline)Michler's baseMethane baseBis[4-(dimethylamino)phenyl]methaneMichler's hydrideMethylene baseMichler's methaneReduced michler'S ketone
16 more reported names
4,4'-Bis(dimethylamino)diphenylmethaneArnold's baseTetramethyldiaminodiphenylmethaneBis(4-(N,N-dimethylamino)phenyl)methane4,4'-TetramethyldiaminodiphenylmethaneBaze michlerova4,4'-Methylenebis(N,N-dimethyl)benzenamine4,4'-(Dimethylamino)diphenylmethanep,p-Dimethylaminodiphenylmethanep,p'-Bis(dimethylamino)diphenylmethaneNCI-C01990Diphenylmethane, tetramethyldiamino-p,p-TetramethyldiaminodiphenylmethaneN,N'-Tetramethyldiaminodiphenylmethane4,4'-Methylenebis(N,N-dimethylbenzenamine)BAZE michlerova [Czech]
Open full PubChem recordSafety and hazards at PubChemPubChem annotationsChemical classifications3D structure image
External database identifiers
Advanced structure statistics
Defined atom stereocentres
0
Undefined atom stereocentres
0
Defined bond stereocentres
0
Undefined bond stereocentres
0
3D pharmacophore features
4
3D rings
2
3D hydrophobes
0
3D acceptor features
0
3D donor features
0
3D anionic centres
0
3D cationic centres
2
3D conformers
7
Effective 3D rotors
4.0
Machine-readable structure identifiers
SMILES
CN(C)C1=CC=C(C=C1)CC2=CC=C(C=C2)N(C)C
InChI
InChI=1S/C17H22N2/c1-18(2)16-9-5-14(6-10-16)13-15-7-11-17(12-8-15)19(3)4/h5-12H,13H2,1-4H3
InChIKey
JNRLEMMIVRBKJE-UHFFFAOYSA-N

Evidence from additional scientific databases

EMBL-EBI ChEBI
Exact identifier matchCHEBI:34370

4,4'-Methylenebis(N,N-dimethylaniline)

Formula
C17H22N2
Average mass
254.377 g/mol
Monoisotopic mass
254.17830 Da
Formal charge
0
  • diarylmethane — is a (CHEBI:51614)
  • diarylmethane — is a (CHEBI:51614)
Additional curated names
4,4'-Methylenebis(N,N-dimethylaniline)Michler's base
Cross-references from this source
  • CAS: 101-61-1 — KEGG COMPOUND
  • MANUAL_X_REF: C14135 — KEGG COMPOUND

Mapped by: Exact CAS cross-reference in the ChEBI compound record. Source updated: 2014-07-28. Retrieved: 2026-08-31. Open source record

NIH PubChem PUG-View
Exact identifier match7567

Attributed physical-property, hazard, environmental and use annotations.

  • Density: 1.14 at 68 °F (NTP, 1992) - Denser than water; will sink Source: CAMEO Chemicals
  • First Aid: EYES: First check the victim for contact lenses and remove if present. Flush victim's eyes with water or normal saline solution for 20 to 30 minutes while simultaneously calling a hospital or poison control center. Do not put any ointments, oils, or medication in the victim's eyes without specific instructions from a physician. IMMEDIATELY transport the victim after flushing eyes to a hospital even if no symptoms (such as redness or irritation) develop.; SKIN: IMMEDIATELY flood affected skin with water while removing and isolating all contaminated clothing. Gently wash all affected skin areas thoroughly with soap and water. IMMEDIATELY call a hospital or poison control center even if no symptoms (such as redness or irritation) develop. IMMEDIATELY transport the victim to a hospital for treatment after washing the affected areas.; INHALATION: IMMEDIATELY leave the contaminated area; take deep breaths of fresh air. IMMEDIATELY call a physician and be prepared to transport the victim to a hospital even if no symptoms (such as wheezing, coughing, shortness of breath, or burning in the mouth, throat, or chest) develop. Provide proper respiratory protection to rescuers entering an unknow Source: CAMEO Chemicals
  • Signal: Danger Source: European Chemicals Agency (ECHA)
  • GHS Hazard Statements: H350 (100%): May cause cancer [Danger Carcinogenicity]; H400 (100%): Very toxic to aquatic life [Warning Hazardous to the aquatic environment, acute hazard]; H410 (100%): Very toxic to aquatic life with long lasting effects [Warning Hazardous to the aquatic environment, long-term hazard] Source: European Chemicals Agency (ECHA)
  • Precautionary Statement Codes: P203, P273, P280, P318, P391, P405, and P501 (click each P-code to see the statement) Source: European Chemicals Agency (ECHA)
  • ECHA C&L Notifications Summary: Aggregated GHS information provided per 46 reports by companies from 3 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.; Information may vary between notifications depending on impurities, additives, and other factors. The percentage value in parenthesis indicates the notified classification ratio from companies that provide hazard codes. Only hazard codes with percentage values above 10% are shown. For more detailed information, please visit ECHA C&L website. Source: European Chemicals Agency (ECHA)
  • Signal: Danger Source: NITE-CMC
  • GHS Hazard Statements: H350: May cause cancer [Danger Carcinogenicity]; H373: May causes damage to organs through prolonged or repeated exposure [Warning Specific target organ toxicity, repeated exposure] Source: NITE-CMC
  • Precautionary Statement Codes: P203, P260, P280, P318, P319, P405, and P501 (click each P-code to see the statement) Source: NITE-CMC
  • Signal: Warning Source: NITE-CMC
  • GHS Hazard Statements: H303: May be harmful if swallowed [Warning Acute toxicity, oral]; H351: Suspected of causing cancer [Warning Carcinogenicity] Source: NITE-CMC
  • Precautionary Statement Codes: P203, P280, P301+P317, P318, P405, and P501 (click each P-code to see the statement) Source: NITE-CMC
  • Environmental Bioconcentration: Bis(p-(dimethylamino)phenyl)methane, present at 0.50 and 0.050 mg/L resulted in BCF of 629 and 423, respectively, in fish using carp (Cyprinus carpio) which were exposed over an 4-week period(1). According to a classification scheme(2), these BCF values suggest that bioconcentration in aquatic organisms is high(SRC). Source: Hazardous Substances Data Bank (HSDB)
  • Environmental Fate: TERRESTRIAL FATE: Based on a classification scheme(1), a log Koc of 3.26(2) (Koc of 9,100(SRC)), determined from a structure estimation method(2), indicates that bis(p-(dimethylamino)phenyl)methane is expected to be immobile in soil(SRC). Volatilization of bis(p-(dimethylamino)phenyl)methane from moist soil surfaces is not expected to be an important fate process(SRC) given an estimated Henry's Law constant of 1.2X10-7 atm-cu m/mole(SRC), using a fragment constant estimation method(3). Bis(p-(dimethylamino)phenyl)methane is not expected to volatilize from dry soil surfaces(SRC) based upon an estimated vapor pressure of 3.3X10-6 mm Hg at 25 °C(SRC), determined from a fragment constant method(4). A 0% of theoretical BOD using activated sludge in the Japanese MITI test(5) suggests that biodegradation is not an important environmental fate process in soil(SRC). Source: Hazardous Substances Data Bank (HSDB)
  • Environmental Fate: AQUATIC FATE: Based on a classification scheme(1), a log Koc of 3.26(2) (Koc of 9,100(SRC)), determined from a structure estimation method(2), indicates that bis(p-(dimethylamino)phenyl)methane is expected to adsorb to suspended solids and sediment(SRC). Volatilization from water surfaces is not expected(3) based upon an estimated Henry's Law constant of 1.2X10-7 atm-cu m/mole(SRC), developed using a fragment constant estimation method(4). According to a classification scheme(5), BCF values of 423 and 629(8), suggest that bioconcentration in aquatic organisms is high(SRC). A 0% of theoretical BOD using activated sludge in the Japanese MITI test(6) suggests that biodegradation is not an important environmental fate process in water(SRC). 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), bis(p-(dimethylamino)phenyl)methane, which has an estimated vapor pressure of 3.3X10-6 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 bis(p-(dimethylamino)phenyl)methane 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 hour(SRC), calculated from its rate constant of 2.1X10-10 cu cm/molecule-sec at 25 °C(SRC) that was derived using a structure estimation method(3). Particulate-phase bis(p-dimethylamino)phenyl)methane may be removed from the air by wet or dry deposition(SRC). Bis(p-dimethylamino)phenyl)methane does not contain chromophores that absorb at wavelengths >290 nm(4), and therefore is not expected to be susceptible to direct photolysis by sunlight(SRC). Source: Hazardous Substances Data Bank (HSDB)

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
SourceResultChecked
EMBL-EBI ChEBIExact match2026-08-31
NIH PubChem PUG-ViewExact match2026-08-31

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
South Korea MFDS cosmetic ingredient data
Source reference
화장품 안전기준 등에 관한 규정, 별표 1, record 1-959
Source record ID
1-959
Source version
2026-19
Source language
Korean
Translation status
No English translation
Effective date
2026-03-18
Source updated
2026-03-18
Snapshot checked
2026-08-30 04:33 UTC
Validation method
MFDS JSON appendices 1–2 parse; 1077 prohibited, 243 restricted
SHA-256
056de35b843a5e31f709073f9e79d5e6e18f7c9164eb537bb099b185a37ef7d8

Registered dataset notes

Dataset coverage
Ingredient identity and separate restriction/regulation data endpoints
Authority note
Korean source is canonical; English materials alone are not complete enough for certification
Inspect the exact official sourceRegulator guidance

How this record fits the market dataset

1320
current South Korea records
1077
records marked Prohibited
1320
records from this source version
1252
market records with CAS identity

Status distribution

Prohibited: 1077Restricted: 243

Condition text is present on 638 of 1320 current records. An empty condition field is interpreted according to the record type above; it is never converted into an unrestricted-use claim.

South Korea market context

Complete current appendix dataset

Coverage version: MFDS Notice 2026-19, effective 18 March 2026

All rows in official Appendix 1 (prohibited) and Appendix 2 (restricted) of the Safety Standards for Cosmetics.

Verification checklist

  1. Match the Korean canonical substance name and identifiers.
  2. Review all Appendix 1 and 2 matches and conditions.
  3. Check functional-cosmetic and positive-list requirements where applicable.
  4. Confirm current MFDS notice, responsible seller and label obligations.

Official market sources

Verification workflow and record completeness

Before using this result in a compliance decision

  1. Confirm that “N,N,N',N-테트라메칠-4,4'-메칠렌디아닐린” and every CAS/EC identifier refer to the material in your supplier specification.
  2. Match the Korean canonical substance name and identifiers.
  3. Review all Appendix 1 and 2 matches and conditions.
  4. Check functional-cosmetic and positive-list requirements where applicable.
  5. Confirm current MFDS notice, responsible seller and label obligations.
  6. 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

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.

A prohibition entry may contain no separate condition text because the regulatory outcome is the prohibition itself. Korean source wording is canonical and other positive lists/notices may still apply to the formulation.

The record cites 화장품 안전기준 등에 관한 규정, 별표 1, record 1-959, source version 2026-19. Open the official source.

No. CAS helps resolve identity, but jurisdictions can classify the same substance differently and can apply different product scopes, limits, warnings and transition dates.

Stable citation

N,N,N',N-테트라메칠-4,4'-메칠렌디아닐린. 화장품 안전기준 등에 관한 규정, 별표 1, record 1-959. South Korea. Source version 2026-19. CosIng Checker regulatory record: https://cosingchecker.com/regulations/kr/records/1608/

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 South Korea

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: 2026-19
  • Effective date: 2026-03-18

What it does not prove

Korean source wording is canonical and other positive lists/notices may still apply to the formulation.

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 source

FDA 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 source

ILO/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 source

Japan 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 source

NIOSH 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 source

OECD 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 source

US EPA CompTox CTX APIs

API key required for import

DTXSID 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