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Impurities and reference standards

2-(2-Hydroxyethyl)pyridine

Also known as 2-Pyridineethanol, 2-(2-Pyridyl)ethanol, Pyridine-2-ethanol

CAS 103-74-2Formula C7H9NOMolar mass 123.16 g/molEC 203-140-2
GHS signal word: Warning. Pictograms: Harmful or irritant 20 suppliers listed
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2-(2-Hydroxyethyl)pyridine chemical structure, C7H9NO, CAS 103-74-2
2D chemical structure

Key facts

What buyers check first

All properties
Physical form
Liquid
Melting point
-7.8 °C
Boiling point
190 °C
Density
1.091 @ 25 °C/0 °C
Solubility
Very soluble in alcohol, chloroform, slightly soluble in ether
HS code
293339
Category
Impurities and reference standards
Illustrative photo, 25 litre white jerry cans of liquid in a warehouse
Typical packagingIllustrative packaging image, not the actual product

What is 2-(2-Hydroxyethyl)pyridine?

Plain description, key identifiers and synonyms

2-Pyridylethanol is a member of pyridines.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
2-pyridin-2-ylethanol
CAS number
103-74-2 CAS number cross-checked
EC number
203-140-2
Molecular formula
C7H9NO
UNII
4G94J9B8JR
MDL number
MFCD00006364
InChIKey
BXGYBSJAZFGIPX-UHFFFAOYSA-N
InChI
InChI=1S/C7H9NO/c9-6-4-7-3-1-2-5-8-7/h1-3,5,9H,4,6H2
SMILES (canonical and isomeric)
C1=CC=NC(=C1)CCO

Synonyms

  • 2-Pyridineethanol
  • 2-(2-Pyridyl)ethanol
  • Pyridine-2-ethanol
  • 2-(Pyridin-2-Yl)Ethan-1-Ol
  • 2-pyridin-2-ylethanol
  • 2-Pyridylethanol
  • 2-(Pyridin-2-yl)ethanol
  • Betahistine EP Impurity B
  • 2-(beta-Hydroxyethyl)pyridine
  • Pyridine, 2-(2-hydroxyethyl)-
  • 2-(2-Pyridinyl)ethanol
  • 2-(alpha-pyridyl)ethanol
  • Pyridineethanol
  • 2-Pyridine ethanol
  • 2-Pyridinethanol
  • 2-(2-Hydroxyethyl)-pyridine
  • Betahistine Impurity B
  • pyridine-ethanol
  • Betahistine Impurity
  • 2-hydroxyethylpyridine
  • 2-Ethanolpyridine
  • 2-(hydroxyethyl)pyridine
  • 2-pyridin-2-yl-ethanol
  • 2-Pyridineethanol, 98%
  • 2-(pyridine-2-yl)ethanol
Show all 35 synonyms
  • Betahistine Imp. B (EP)
  • 2-(pyridin-2-yl)-ethanol
  • 2-(2-Pyridinyl)ethanol #
  • 2-(2-pyridyl)-1-ethanol
  • 2-(2-pyridyl)ethan-1-ol
  • 2-(2-hydroxyethyl) pyridine
  • 5-21-02-00206 (Beilstein Handbook Reference)
  • 2-(beta-Hydroxyethyl)-pyridine
  • beta-(2-pyridyl)ethanol
  • 2-(2-Pyridyl)ethyl alcohol

Physical and chemical properties

Measured values and descriptors computed from the structure

Physical and chemical properties

Measured values, check the supplier specification for your grade

Physical form
Liquidexp.
Melting point
-7.8 °Cexp.
Boiling point
190 °Cexp.
Density
1.091 @ 25 °C/0 °Cexp.
Solubility
Very soluble in alcohol, chloroform, slightly soluble in etherexp.

Values vary by grade. Ask suppliers for the COA or TDS of the batch you buy.

Computed descriptors

Calculated from the structure, useful for screening and formulation

Molecular weight
123.16 g/molcalc.
Exact mass
123.0684 Dacalc.
LogP (octanol/water)
0.62calc.
Topological polar surface area
33.12 Ųcalc.
Hydrogen bond donors
1calc.
Hydrogen bond acceptors
2calc.
Rotatable bonds
2calc.
Heavy atoms
9calc.
Rings
1calc.
Aromatic rings
1calc.
Fraction sp3 carbons
0.29calc.
Formal charge
0calc.
Stereocentres
0calc.
Lipinski rule of five
Passes (0 violations)calc.

Calculated for screening. Confirm critical figures with the supplier.

Murcko scaffold

The ring system that remains when every side chain is removed

Murcko scaffold of this chemical, c1ccncc1

c1ccncc1

1 ring, 6 atoms, the Pyridine ring system.

118,162 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Warning
GHS07: Harmful or irritant
Harmful or irritant

Hazard statements

  • H315Causes skin irritation.
  • H319Causes serious eye irritation.
  • H335May cause respiratory irritation.
Precautionary statements (16)
  • P261Avoid breathing dust, fume, gas, mist, vapours or spray.
  • P264Wash skin thoroughly after handling.
  • P264 + P265Wash skin thoroughly after handling. Do not touch eyes.
  • P271Use only outdoors or in a well-ventilated area.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P302 + P352If on skin: Wash with plenty of water.
  • P304 + P340If inhaled: Remove person to fresh air and keep comfortable for breathing.
  • P305 + P351 + P338If in eyes: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
  • P319Get medical help if you feel unwell.
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P332 + P317If skin irritation occurs: Get medical help.
  • P337 + P317If eye irritation persists: Get medical help.
  • P362 + P364Take off contaminated clothing. And wash it before reuse.
  • P403 + P233Store in a well-ventilated place. Keep container tightly closed.
  • P405Store locked up.
  • P501Dispose of contents and container in accordance with local regulations.

GHS classification summary, not a safety data sheet (SDS). Classifications can differ by supplier, grade and concentration. Always check the supplier's SDS.

Full safety data and first aid

2-(2-Hydroxyethyl)pyridine suppliers

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Where suppliers are based

20 suppliers in 8 countries

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2-(2-Hydroxyethyl)pyridine price

Indicative price range per kg from live supplier offers

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Uses and applications

What the substance is used for, by industry and function

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

Industrial uses: Intermediate.

How it is made

Condensation of 2- or 4-methylpyridine or 5-ethyl-2-methylpyridine with formaldehyde occurs on heating to yield ... 2-(2-hydroxyethyl)pyridine.

Regulatory status

Inventories, regulations and trade controls that list this substance

United States

  • TSCA inventory (USA)
    Status: Active in US commerce

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code 2-(2-Hydroxyethyl)pyridine is traded under.

HS 2933.39Indicative HS code

Heterocyclic compounds containing an unfused pyridine ring (whether or not hydrogenated) in the structure…

World exports in 2024
$9.16B
−17.9% vs 2023, imports $10.6B
2019 to 2024
Top exporters
  1. China21.5%
  2. India * partner reported12.3%
  3. Ireland11.6%
Top importers
  1. Germany14.2%
  2. United States12.8%
  3. Brazil10.1%

* Partner reported figures, a lower bound.

Reported customs values in USD, not prices.Full trade data

The HS code shown for 2-(2-Hydroxyethyl)pyridine is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about 2-(2-Hydroxyethyl)pyridine, based on the data on this page

What is 2-(2-Hydroxyethyl)pyridine?

2-Pyridylethanol is a member of pyridines.

What is the CAS number of 2-(2-Hydroxyethyl)pyridine?

The CAS registry number of 2-(2-Hydroxyethyl)pyridine is 103-74-2.

What is the molecular formula and weight of 2-(2-Hydroxyethyl)pyridine?

The molecular formula of 2-(2-Hydroxyethyl)pyridine is C7H9NO and its molar mass is 123.16 g/mol.

What is 2-(2-Hydroxyethyl)pyridine used for?

Manufacture of vinyl pyridines, production of psychotropic agent, thioridazine, and the antispasmodic, tiquizium bromide. Industrial uses: Intermediate.

Is 2-(2-Hydroxyethyl)pyridine hazardous?

2-(2-Hydroxyethyl)pyridine carries the GHS signal word "Warning". Main hazards: causes skin irritation, causes serious eye irritation, may cause respiratory irritation. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of 2-(2-Hydroxyethyl)pyridine?

2-(2-Hydroxyethyl)pyridine is usually classified under HS code 293339 (Compounds containing an unfused pyridine ring (whether or not hydrogenated) in the…). This is indicative, confirm it with your customs broker before shipping.

Where can I buy 2-(2-Hydroxyethyl)pyridine?

CompoundList lists 20 suppliers of 2-(2-Hydroxyethyl)pyridine in China, United States, India, Switzerland and 4 more. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

Where can I buy 2-(2-Hydroxyethyl)pyridine in India?

2 suppliers in India list 2-(2-Hydroxyethyl)pyridine on CompoundList. Filter the suppliers list by country and send a request to compare prices, grades and delivery times.

What is the price of 2-(2-Hydroxyethyl)pyridine?

Suppliers quote 2-(2-Hydroxyethyl)pyridine on request because prices depend on grade, purity, quantity and destination. A free request on CompoundList gets you several quotes to compare.

Guides for buyers

Practical guides that help when you source, ship or handle 2-(2-Hydroxyethyl)pyridine

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Data last updated 7 Oct 2026. Details may have changed, please confirm them with the supplier. Report an error on this page
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