2-ピリジンエタノール

2-(2-Hydroxyethyl)pyridine

HCID 7675CAS 103-74-2

基本情報

標準SMILES
OCCc1ccccn1
InChIKey
BXGYBSJAZFGIPX-UHFFFAOYSA-N
分子式
C7H9NO
平均分子量
123.15 g/mol
単同位体質量
123.06841391

概要

2-Pyridylethanol is a member of pyridines.

名称と識別子

優先名称
2-(2-Hydroxyethyl)pyridine
IUPAC
2-pyridin-2-ylethanol
現地名
2-ピリジンエタノール
英語名
2-(2-Hydroxyethyl)pyridine
分子式
C7H9NO
分子量
123.15

名称と別名

2-(2-Hydroxyethyl)pyridineRefChem:893582-PYRIDINEETHANOL103-74-22-(2-Pyridyl)ethanolPyridine-2-ethanol2-(Pyridin-2-Yl)Ethan-1-Ol2-pyridin-2-ylethanol2-Pyridylethanol2-(Pyridin-2-yl)ethanolBetahistine EP Impurity B2-(beta-Hydroxyethyl)pyridine
名称をさらに表示
2-ピリジンエタノールピリジン-2-エタノール2-(2-ピリジル)エタノール2-(2-ピリジニル)エタノール2-(2-ヒドロキシエチル)ピリジンピリジンエタノ-ル2-(ピリジン-2-イル)エタン-1-オール2-ETHANOLPYRIDINEBetahistine Impurity B2-Pyridinethanol2-Pyridineethonl2-Pyridien ethanolP-nitrochlorobenzen
Pyridine, 2-(2-hydroxyethyl)-2-(2-Pyridinyl)ethanolUNII-4G94J9B8JRMFCD000063644G94J9B8JRDTXSID2044767NSC-21442-(.ALPHA.-PYRIDYL)ETHANOL

データベース識別子

CAS
103-74-2
PubChem CID
7675
DTXSID
DTXSID2044767
ChEMBL
CHEMBL3186451
ChEBI
CHEBI:230061
UNII
4G94J9B8JR
EC Number
203-140-2
Nikkaji
J28.225A

物性

構造計算による物性

XLogP
0.1
極性表面積
33.1 Ų
水素結合供与体数
1
水素結合受容体数
2
回転可能結合数
2
重原子数
9

実験および物理化学的性質

Chemical ClassesNitrogen Compounds -> Pyridines
LogP · 2 件

log Kow= 0.12

0.12

Density1.091 @ 25 °C/0 °C
SolubilityVery soluble in alcohol, chloroform; slightly soluble in ether
Boiling Point190 °C @ 200 mm Hg; 170 °C @ 100 mm Hg
Melting Point-7.8 °C

物理化学的性質

融点
-8 · -8--7°C
沸点
114 · 114-116 °C/9 mmHg (lit.)
比重(密度)
1.093 g/mL · 1.093 g/mL at 25 °C (lit.)
蒸気圧
1.16 · 1.16-14.1Pa at 25℃
屈折率
20 · n20/D 1.537(lit.)
闪点
199 °F · 199 °F

化学的性質

化学的特性clear yellow to brown liquid

安全と法規制

GHS分類

GHS Classification · 4 件

Warning

H315 (50.5%): 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 91 reports by companies from 8 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.

危険有害性情報

Regulatory Information · 2 件

2-Pyridineethanol is listed on the EPA's Chemical Data Reporting (CDR) system. Manufacturers and importers of 2-Pyridineethanol 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: 26-09-2013 https://echa.europa.eu/registration-dossier/-/registered-dossier/13451

Hazards SummaryEmergency treatment: Pyridine; Pyridine is an irritant that causes CNS depression after ingestion of 1/2 cup or inhalation of 6-12 ppm; It can cause liver and kidney injury; [HSDB] An irritant; [MSDSonline] See Pyridine.
Hazard Classes and CategoriesSkin Irrit. 2 (50.5%)
Skin, Eye, and Respiratory IrritationsPyridine and its derivatives cause local irritation on contact with the skin, mucous membranes and cornea. /Pyridine and its derivatives/

安全と保護具

Disposal Methods · 1 件

SRP: At the time of review, criteria for land treatment or burial (sanitary landfill) disposal practices are subject to significant revision. Prior to implementing land disposal of waste residue (including waste sludge), consult with environmental regulatory agencies for guidance on acceptable disposal practices.

Preventive Measures · 1 件

SRP: The scientific literature for the use of contact lenses in industry is conflicting. The benefit or detrimental effects of wearing contact lenses depend not only upon the substance, but also on factors including the form of the substance, characteristics and duration of the exposure, the uses of other eye protection equipment, and the hygiene of the lenses. However, there may be individual substances whose irritating or corrosive properties are such that the wearing of contact lenses would be harmful to the eye. In those specific cases, contact lenses should not be worn. In any event, the usual eye protection equipment should be worn even when contact lenses are in place.

Personal Protective Equipment (PPE) · 3 件

... WORKERS SHOULD BE PROVIDED WITH PERSONAL PROTECTIVE EQUIPMENT. A CHARCOAL GAS-MASK CANISTER RESPIRATOR HAS BEEN ... EFFECTIVE ... /PYRIDINE/

RUBBER & PLASTIC GLOVES SHOULD NOT BE RELIED UPON TO PREVENT SKIN CONTACT BECAUSE ... MANY ... /PYRIDINE/ DERIV PENETRATE THESE MATERIALS. /PYRIDINE/

Depending on the extent of possible contact, workers should be provided with personal protective equipment. A charcoal gas mask canister respirator has been found to be effective against a 2% pyridine concentration at 30 l/min for 1 hr. Rubber and plastic gloves should not be relied upon to prevent skin contact because pyridine and many of its derivatives penetrate these materials ... . /Pyridine, homologs, and derivatives/

毒性情報

Environmental Fate · 3 件

TERRESTRIAL FATE: Based on a classification scheme(1), a Koc value of 28(SRC), determined from a log Kow of 0.12(2) and a regression-derived equation(3), indicates that 2-pyridineethanol is expected to have very high mobility in soil(SRC). Volatilization of 2-pyridineethanol from moist soil surfaces is not expected to be an important fate process(SRC) given an estimated Henry's Law constant of 1.5X10-10 atm-cu m/mole(SRC). 2-Pyridineethanol is not expected to volatilize from dry soil surfaces(SRC) based upon an estimated vapor pressure of 7.0X10-5 mm Hg(SRC), determined from a fragment constant method(4).

AQUATIC FATE: Based on a classification scheme(1), an estimated Koc value of 28(SRC), determined from a log Kow of 0.12(2) and a regression-derived equation(3), indicates that 2-pyridineethanol is not 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 1.5X10-10 atm-cu m/mole(SRC). According to a classification scheme(4), an estimated BCF of 3(SRC), from its log Kow(2) and a regression-derived equation(5), suggests the potential for bioconcentration in aquatic organisms is low(SRC).

ATMOSPHERIC FATE: According to a model of gas/particle partitioning of semivolatile organic compounds in the atmosphere(1), 2-pyridineethanol, which has an estimated vapor pressure of 7.0X10-5 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(SRC). Vapor-phase 2-pyridineethanol 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 2.6 days(SRC), calculated from its rate constant of 6.2X10-12 cu cm/molecule-sec at 25 °C(SRC) that was derived using a structure estimation method(3). Particulate-phase 2-pyridineethanol may be removed from the air by wet and dry deposition(SRC).

Adverse EffectsNeurotoxin - Other CNS neurotoxin
Soil Adsorption/Mobility · 1 件

The Koc of 2-pyridineethanol is estimated as 28(SRC), using a log Kow of 0.12(1) and a regression-derived equation(2). According to a classification scheme(3), this estimated Koc value suggests that 2-pyridineethanol is expected to have very high mobility in soil(SRC).

Fish/Seafood Concentrations2-Pyridineethanol was detected in adult Lake trout (Salvelinus namaycush) and/or walleye (Stizostediion v. vitreum) collected from Lake St Clair(1).
Artificial Pollution Sources2-Pyridineethanol's production and use in the manufacture of vinyl pyridines(1) may result in its release to the environment through various waste streams(SRC).
Environmental Bioconcentration · 1 件

An estimated BCF of 3 was calculated for 2-pyridineethanol(SRC), using a log Kow of 0.12(1) and a regression-derived equation(2). According to a classification scheme(3), this BCF suggests the potential for bioconcentration in aquatic organisms is low(SRC).

安全データ

F
3
wgk
2
tsca
TSCA listed
rtecs
UT2970450
hs_code
29333999
risk_code
36/37/38

化学と産業

薬理情報

Absorption, Distribution and Excretion · 1 件

PYRIDINE & ITS ALKYL DERIVATIVES ARE ABSORBED FROM GI TRACT, INTRAPERITONEAL CAVITY & LUNGS. PERITONEAL ABSORPTION IS APPARENTLY ONLY SLIGHTLY MORE RAPID & COMPLETE THAN GI ABSORPTION ... IN GENERAL THE BASES ARE RAPIDLY ABSORBED THROUGH INTACT SKIN. /ALKYL DERIVATIVES OF PYRIDINE/

用途と製造

Uses · 2 件

Used in the manufacturing of vinyl pyridines, thioridazine (psychotropic agent), and tiquizium bromide (antispasmodic); [HSDB]

Manufacture of vinyl pyridines; production of psychotropic agent, thioridazine, and the antispasmodic, tiquizium bromide.

U.S. Production2023: 1,000,000 - <5,000,000 lb
Industry UsesIntermediate
Methods of ManufacturingCondensation of 2- or 4-methylpyridine or 5-ethyl-2-methylpyridine with formaldehyde occurs on heating to yield ... 2-(2-hydroxyethyl)pyridine.
General Manufacturing Information · 2 件

All Other Basic Organic Chemical Manufacturing

2-Pyridineethanol: ACTIVE

応用分野 · 2 件

使用2-(2-Hydroxyethyl)pyridine is a metabolite of the anti-vertigo drug Betahistine. It acts as a reagent for protection of the 5'-phosphate of nucleotides as 2-pyridylethyl (Pet) esters. It is used for carboxyl protection of amino acids. It is also used to cleave such groups as Boc and Fmoc, and also to hydrogenolysis. It was used to prepare mononuclear nickel(II) acetate.

一般的な説明2-(2-pyridyl)ethanol derivatives react with the aryl and alkenyl chlorides (palladium-catalyzed reactions) that result in the substitution of the chloro moieties with a 2-pyridylmethyl group.

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