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HCID 7421Erstellt: 23. Oktober 2026

3-Dimethylaminophenol

3-n,n-dimethylaminophenol · 3-DMAP · DIMETHYLAMINOPHENOL · N,N-DIMETHYL-3-AMINOPHENOL · Phenol, 3-(dimethylamino)- · M-DIMETHYLAMINOPHENOL · Neostigmine impurity B · NSC 62017

https://huagongshe.com/de/chemical/7421

Molekülstruktur von 3-Dimethylaminophenol

Identifikatoren & physikalische Daten

CAS No.99-07-0
SummenformelC8H11NO
Durchschnittliche Molmasse137,18 g/mol
Monoisotopische Masse137,08406397 g/mol
SMILESCN(C)c1cccc(O)c1
InChIKeyMESJRHHDBDCQTH-UHFFFAOYSA-N
PubChem CID7421
ChEMBLCHEMBL225257
EC No.202-727-0
DTXSIDDTXSID0025101
Lokaler Name3-Dimethylaminophenol

Chemische & physikalische Eigenschaften

XLogP1,6
Polarare Oberfläche (TPSA)23,5
H-Brücken-Donoren1
H-Brücken-Akzeptoren2
Frei drehbare Bindungen1
Schwere Atome10
Formalladung0
Komplexität103
LogP (Verteilungskoeffizient)1.56
Löslichkeitless than 0.1 mg/mL at 68 °F (NTP, 1992)DMSO (Slightly), Methanol (Slightly)SLIGHTLY SOLUBLE
Siedepunkt509 to 514 °F at 760 mmHg (NTP, 1992)265-268°C
Schmelzpunkt180 to 183 °F (NTP, 1992)82-84 °C(lit.)
Physical Description3-dimethylaminophenol appears as needles (from ligroin) or a dark gray solid. (NTP, 1992)
Dichte1.0976 (rough estimate)
Brechungsindex1.5895 (estimate)
Flammpunkt148 °C
LagerbedingungenKeep in dark place,Inert atmosphere,Room temperature
AggregatzustandPowder
pKa (Säurekonstante)10.06±0.10(Predicted)
Farbeviolet
pH7 (10g/l, H2O, 20℃)(slurry)
BRN774631
StabilitätStable. May be air-sensitive. Combustible. Incompatible with strong oxidizing agents.
InChI1S/C8H11NO/c1-9(2)7-4-3-5-8(10)6-7/h3-6,10H,1-2H3
InChIKeyMESJRHHDBDCQTH-UHFFFAOYSA-N
SMILESCN(C)c1cccc(O)c1
CAS Datenbank99-07-0(CAS DataBase Reference)
NIST chemische InformationenPhenol, 3-(dimethylamino)-(99-07-0)
EPA chemische Informationenm-(Dimethylamino)phenol (99-07-0)

Sicherheit & Vorschriften

GHS-EinstufungWarningH315 (100%): Causes skin irritation [Warning Skin corrosion/irritation]P261, P264, P264+P265, P271, P280, P302+P352, P304+P340, P305+P351+P338, P319, P321, P332+P317, P337+P317, P362+P364, P403+P233, P405, and P501 (click each P-code to see the statement)Aggregated GHS information provided per 152 reports by companies from 8 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
Regulatorische InformationenChemical: Phenol, 3-(dimethylamino)-
BrandgefahrenFlash point data for this chemical are not available. It is probably combustible. (NTP, 1992)
GesundheitsgefahrenSYMPTOMS: Symptoms of exposure to this compound may include irritation of the skin, eyes and mucous membranes.
Reaktive GruppeAmines, Phosphines, and Pyridines
Reactivity ProfileAn amine and phenol. Amines are chemical bases. They neutralize acids to form salts plus water. These acid-base reactions are exothermic. The amount of heat that is evolved per mole of amine in a neutralization is largely independent of the strength of the amine as a base. Amines may be incompatible with isocyanates, halogenated organics, peroxides, phenols (acidic), epoxides, anhydrides, and acid halides. Flammable gaseous hydrogen is generated by amines in combination with strong reducing agents, such as hydrides. Phenols do not behave as organic alcohols, as one might guess from the presence of a hydroxyl (-OH) group in their structure. Instead, they react as weak organic acids. Phenols and cresols are much weaker as acids than common carboxylic acids (phenol has pKa = 9.88). These materials are incompatible with strong reducing substances such as hydrides, nitrides, alkali metals, and sulfides. Flammable gas (H2) is often generated, and the heat of the reaction may ignite the gas. Heat is also generated by the acid-base reaction between phenols and bases. Such heating may initiate polymerization of the organic compound. Phenols are sulfonated very readily (for example, by concentrated sulfuric acid at room temperature). The reactions generate heat. Phenols are also nitrated very rapidly, even by dilute nitric acid.
Air and Water ReactionsSensitive to prolonged exposure to air. Insoluble in water.
Hazard Classes and CategoriesSkin Irrit. 2 (100%)
BrandbekämpfungFires involving this material can be controlled with a dry chemical, carbon dioxide or Halon extinguisher. (NTP, 1992)
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.
Freisetung ohne BrandSMALL SPILLS AND LEAKAGE: Should a spill occur while you are handling this chemical, FIRST REMOVE ALL SOURCES OF IGNITION, then you should dampen the solid spill material with 60-70% ethanol and transfer the dampened material to a suitable container. Use absorbent paper dampened with 60-70% ethanol to pick up any remaining material. Seal the absorbent paper, and any of your clothes, which may be contaminated, 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.
Personal Protective Equipment (PPE)RECOMMENDED RESPIRATOR: Where the neat test chemical is weighed and diluted, wear a NIOSH-approved half face respirator equipped with an organic vapor/acid gas cartridge (specific for organic vapors, HCl, acid gas and SO2) with a dust/mist filter. (NTP, 1992)
Wassergefährdungsklasse (WGK)3
TSCA-Inventar-StatusTSCA listed
Zollcode29222900
RTECS-Nr.SL1050000
R-Sätze (R)36/37/38-20/21/22
GefahrensymboleXi,Xn
hazard_noteIrritant
Sicherheitshinweise (S)26-36-36/37/39-22
Lagerklasse11 - Combustible Solids
GefahrenklasseEye Irrit. 2Skin Irrit. 2STOT SE 3

Anwendungen & Verwendung

Verwenden

3-Dimethylaminophenol can be used as neostigmine bromide intermediate and dye intermediate.