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HCID 9076Erstellt: 23. Oktober 2026

4-Ethoxyanilin

P-PHENETIDINE · 4-ETHOXYANILINE · PARA PHENETIDINE · ethoxyaniline · Benzenamine, 4-ethoxy- · p-Aminophenolethylether · p-Phenetidin · 4-Ethoxyanilin

https://huagongshe.com/de/chemical/9076

Molekülstruktur von 4-Ethoxyanilin

Identifikatoren & physikalische Daten

CAS No.156-43-4
SummenformelC8H11NO
Durchschnittliche Molmasse137,18 g/mol
Monoisotopische Masse137,08406397 g/mol
SMILESCCOc1ccc(N)cc1
InChIKeyIMPPGHMHELILKG-UHFFFAOYSA-N
PubChem CID9076
ChEMBLCHEMBL250969
ChEBICHEBI:85505
EC No.205-855-5
DTXSIDDTXSID0025864
Lokaler Name4-Ethoxyanilin

Chemische & physikalische Eigenschaften

XLogP1,2
Polarare Oberfläche (TPSA)35,3
H-Brücken-Donoren1
H-Brücken-Akzeptoren2
Frei drehbare Bindungen2
Schwere Atome10
Formalladung0
Komplexität87,3
StoffklassenNitrogen Compounds -> Amines, Aromatic
SpringerMaterials PropertiesBoiling point
LogP (Verteilungskoeffizient)1.24
Dichte1.0652 at 61 °F (NTP, 1992) - Denser than waterwill sink1.1 g/cm³Relative density of the vapour/air-mixture at 20 °C (air = 1): 1.01.065 g/mL at 25 °C(lit.)
Löslichkeit5 to 10 mg/mL at 68 °F (NTP, 1992)Solubility in water, g/100ml at 20 °C: 2 (moderate)20g/lpractically insoluble
Flammpunkt240 °F (NTP, 1992)120 °C c.c.
Siedepunkt482 °F at 760 mmHg (NTP, 1992)253-255 °C250 °C(lit.)
Schmelzpunkt36 to 39 °F (NTP, 1992)2.4 °C2-5 °C(lit.)
Dampfdichte4.73 (NTP, 1992) - Heavier than airwill sink (Relative to Air)Relative vapor density (air = 1): 4.7
Dampfdruck3.48 mmHg at 77 °F (NTP, 1992)0.01 [mmHg]Vapor pressure, Pa at 50 °C: 102.93Pa at 25℃
Physical DescriptionP-phenetidine is a colorless to dark red liquid. (NTP, 1992)CBIColorless liquidTurns red to brown on air and light exposure[Merck Index] Brown liquid with an unpleasant odor[Alfa Aesar MSDS]COLOURLESS LIQUID. TURNS DARK RED ON EXPOSURE TO AIR AND LIGHT.
Collision Cross Section139.8 Ų [M+H]+ [CCS Type: DTBuffer gas: N2Ionization: ESI+Dataset: TOXCASTSource Identifier: DTXSID0025864]
Brechungsindexn20/D 1.559(lit.)
Lagerbedingungen2-8°C
pKa (Säurekonstante)5.2(at 28℃)
AggregatzustandA liquid
FarbeClear Yellow
pH8 (1g/l, H2O, 20℃)
Merck14,7228
BRN606666
Dielektrizitätskonstante7.3(21℃)
StabilitätStable, but light and air sensitive. Combustible. Incompatible with strong oxidizing agents.
Kosmetik-Inhaltsstoffe FunktionenHAIR DYEING
InChI1S/C8H11NO/c1-2-10-8-5-3-7(9)4-6-8/h3-6H,2,9H2,1H3
InChIKeyIMPPGHMHELILKG-UHFFFAOYSA-N
SMILESCCOc1ccc(N)cc1
CAS Datenbank156-43-4(CAS DataBase Reference)
NIST chemische Informationen4-Ethoxyaniline(156-43-4)
EPA chemische Informationenp-Phenetidine (156-43-4)

Sicherheit & Vorschriften

GHS-EinstufungWarningH302: Harmful if swallowed [Warning Acute toxicity, oral]P203, P261, P264, P264+P265, P270, P271, P272, P280, P301+P317, P302+P352, P304+P340, P305+P351+P338, P317, P318, P321, P330, P333+P317, P337+P317, P362+P364, P405, and P501 (click each P-code to see the statement)H302 (100%): Harmful if swallowed [Warning Acute toxicity, oral]
Regulatorische InformationenChemical: Benzenamine, 4-ethoxy-Benzenamine, 4-ethoxy- is listed on the EPA's Chemical Data Reporting (CDR) system. Manufacturers and importers of Benzenamine, 4-ethoxy- are required to report information about their production and use of this chemical to the EPA under the Toxic Substances Control Act (TSCA). (40 eCFR Part 711)Status: Active Update: 08-05-2020 https://echa.europa.eu/registration-dossier/-/registered-dossier/10853Phenetidine: Does not have an individual approval but may be used under an appropriate group standard
Weitere SicherheitsinformationenIMAP assessments - Benzenamine, 4-ethoxy-: Human health tier II assessment
DOT-KennzeichnungPoison
BrandgefahrenThis compound is combustible. (NTP, 1992)
GesundheitsgefahrenSYMPTOMS: Symptoms of exposure to this compound may include cyanosis, hypothermia, headache, drowsiness, vomiting, nephritis and irritation of the alimentary tract.
GefahrenübersichtAn eye irritantMay induce methemoglobinemia[ICSC] Causes methemoglobinemia in repeated-dose oral studies of rats[RTECS] Toxic by ingestion, inhalation, and skin absorptionMay cause contact irritation, cyanosis, hypothermia, headache, drowsiness, vomiting, nephritis, and alimentary tract irritation[NTP] Case report of methemoglobinemia from occupational exposureSensitizing in 2 of 3 maximization tests of guinea pigsNot a lung sensitizer in guinea pigsSome evidence of skin sensitization in humans[IUCLID] A strong eye irritantMay cause skin sensitizationHarmful by ingestion, inhalation, and skin absorptionSuspected mutagen[Alfa Aesar MSDS] See m-Phenetidine. See p-Anisidine.
Reaktive GruppeEthers
EG-EinstufungSymbol: XnR: 20/21/22-36-43-68S: (2)-36/37-46
UN-EinstufungUN Hazard Class: 6.1UN Pack Group: III
Reactivity ProfileP-PHENETIDINE reacts vigorously with powerful oxidizers.
Chemical DangersOn combustion, forms nitrogen oxides. Reacts with strong oxidants.
Physical DangersThe vapour mixes well with air, explosive mixtures are easily formed.
BrandbekämpfungFires involving this material can be controlled with a dry chemical, carbon dioxide or Halon extinguisher. (NTP, 1992)Use powder, alcohol-resistant foam, water spray, carbon dioxide.
Erste-Hilfe-MaßnahmenFresh air, rest.Remove contaminated clothes. Rinse and then wash skin with water and soap.Rinse with plenty of water (remove contact lenses if easily possible).Rinse mouth. Seek medical attention if you feel unwell.
Erste HilfeEYES: 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.
Sichere LagerungSeparated from strong oxidants and food and feedstuffs.
Freisetung ohne BrandSMALL SPILLS AND LEAKAGE: If you spill this chemical, FIRST REMOVE ALL SOURCES OF IGNITION. Then, use absorbent paper to pick up all liquid spill material. Your contaminated clothing and absorbent paper should be sealed in a vapor-tight plastic bag for eventual disposal. Solvent wash all contaminated surfaces with 60-70% ethanol followed by washing with a soap and water solution. Do not reenter the contaminated area until the Safety Officer (or other responsible person) has verified that the area has been properly cleaned.
Verschüttetes entsorgenPersonal protection: filter respirator for organic gases and vapours adapted to the airborne concentration of the substance. Collect leaking liquid in sealable containers. Absorb remaining liquid in sand or inert absorbent. Then store and dispose of according to local regulations.
Isolation and EvacuationExcerpt from ERG Guide 153 [Substances - Toxic and/or Corrosive (Combustible)]:
Eye PreventionWear safety goggles.
Fire PreventionNO open flames.
Inhalation RiskNo indication can be given about the rate at which a harmful concentration of this substance in the air is reached on evaporation at 20 °C.
Skin PreventionProtective gloves.
Ingestion PreventionDo not eat, drink, or smoke during work.
Unerwünschte WirkungenMethemoglobinemia - The presence of increased methemoglobin in the bloodthe compound is classified as secondary toxic effect
ExpositionspfadeThe substance can be absorbed into the body by inhalation of its vapour and by ingestion.
Signs and SymptomsRedness.
ICSC Environmental DataEnvironmental effects from the substance have not been investigated adequately.
Toxicity DataLCLo (rat) = 487 mg/m3/4hr
F8-10
Wassergefährdungsklasse (WGK)1
TSCA-Inventar-StatusTSCA listed
UN-TransportnummerUN 2311 (PHENETIDINES)
Zollcode29222200
RTECS-Nr.SI6465500
R-Sätze (R)23/24/25-33-68-43-36-20/21/22
ToxizitätLD50 orl-rat: 580 mg/kg GISAAA 35(8),28,70
GefahrensymboleT,Xi,Xn
hazard_noteIrritant
Sicherheitshinweise (S)28-36/37-45-46
Gefahrenklasse6.1Acute Tox. 4 DermalAcute Tox. 4 InhalationAcute Tox. 4 OralEye Irrit. 2Muta. 2Skin Sens. 1
VerpackungsgruppeIII
Lagerklasse6.1C - Combustible acute toxic Cat.3toxic compounds or compounds which causing chronic effects

Anwendungen & Verwendung

Verwenden

A toxic metabolite of Phenacetin (P294580) which exhibits high renal toxicity. p-Phenetidine also reduced COX-1 and COX-2 expression in neutrophils.