CompoundList
Sign in
Nonionic surfactants

2-Propynoxyethanol

Also known as Ethanol, 2-(2-propynyloxy)-, 2-(Prop-2-yn-1-yloxy)ethanol, 2-(2-Propyn-1-yloxy)ethanol

CAS 3973-18-0Formula C5H8O2Molar mass 100.12 g/molEC 223-601-1
GHS signal word: Danger. Pictograms: Corrosive, Acute toxicity (severe), Harmful or irritant, Serious health hazard 16 suppliers listed
Get quotes Compare 16 suppliers
2-Propynoxyethanol chemical structure, C5H8O2, CAS 3973-18-0
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
3973-18-0
Formula
C5H8O2
Molar mass
100.12 g/mol
EC number
223-601-1
HS code
290944
Category
Nonionic surfactants

What is 2-Propynoxyethanol?

Plain description, key identifiers and synonyms

2-Propynoxyethanol is a chemical substance with the molecular formula C5H8O2 and a molar mass of 100.12 g/mol. Its CAS registry number is 3973-18-0. The IUPAC name is 2-prop-2-ynoxyethanol.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
2-prop-2-ynoxyethanol
CAS number
3973-18-0 CAS number cross-checked
EC number
223-601-1
Molecular formula
C5H8O2
UNII
2EQ7D0F9DR
MDL number
MFCD00099294
InChIKey
GHGCQQRMJCSIBQ-UHFFFAOYSA-N
InChI
InChI=1S/C5H8O2/c1-2-4-7-5-3-6/h1,6H,3-5H2
SMILES (canonical and isomeric)
C#CCOCCO

Synonyms

  • Ethanol, 2-(2-propynyloxy)-
  • 2-(Prop-2-yn-1-yloxy)ethanol
  • 2-(2-Propyn-1-yloxy)ethanol
  • 2-(2-Propynyloxy)ethanol
  • Ethylene glycol monopropargyl ether
  • 2-(Propargyloxy)ethanol
  • 3-(2-hydroxyethoxy)-1-propyne
  • Ethanol, 2-(2-propyn-1-yloxy)-
  • 4-Oxa-1-hexyn-6-ol
  • Propynol ethoxylate
  • Propargyl-PEG2-alcohol
  • 2-prop-2-ynoxyethanol
  • 2-(Prop-2-ynyloxy)ethanol
  • 2-(prop-2-yn-1-yloxy)ethan-1-ol
  • Propynol Ethoxylate (>80%)
  • Propyne ethoxylate
  • Alkyne-PEG1-OH
  • 2-hydroxyethyl propargyl ether
  • Propyne-PEG1-OH
  • 2-propargyloxyethanol
  • Propynol ethoxylate 90%
  • Propargyl-peg1-oh
  • 2-Prop-2-ynyloxy-ethanol
  • HO-PEG-Propargyl, MW 2,000
  • 2-[(Prop-2-yn-1-yl)oxy]ethan-1-ol
Show all 26 synonyms
  • HC inverted exclamation markOC-CH2-PEG1-OH

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

No measured properties are recorded for this substance yet. Ask suppliers for a technical data sheet.

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
100.12 g/molcalc.
Exact mass
100.0524 Dacalc.
LogP (octanol/water)
-0.37calc.
Topological polar surface area
29.46 Ųcalc.
Hydrogen bond donors
1calc.
Hydrogen bond acceptors
2calc.
Rotatable bonds
3calc.
Heavy atoms
7calc.
Rings
0calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0.6calc.
Formal charge
0calc.
Stereocentres
0calc.
Lipinski rule of five
Passes (0 violations)calc.

Calculated for screening. Confirm critical figures with the supplier.

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Danger
GHS05: Corrosive
Corrosive
GHS06: Acute toxicity (severe)
Acute toxicity (severe)
GHS07: Harmful or irritant
Harmful or irritant
GHS08: Serious health hazard
Serious health hazard

Hazard statements

  • H302Harmful if swallowed.
  • H318Causes serious eye damage.
  • H319Causes serious eye irritation.
  • H330Fatal if inhaled.
  • H332Harmful if inhaled.
  • H335May cause respiratory irritation.
  • H361fSuspected of damaging fertility.
  • H373May cause damage to organs through prolonged or repeated exposure.
Precautionary statements (23)
  • P203Obtain, read and follow all safety instructions before use.
  • P260Do not breathe dust, fume, gas, mist, vapours or spray.
  • P261Avoid breathing dust, fume, gas, mist, vapours or spray.
  • P264Wash skin thoroughly after handling.
  • P264 + P265Wash skin thoroughly after handling. Do not touch eyes.
  • P270Do not eat, drink or smoke when using this product.
  • P271Use only outdoors or in a well-ventilated area.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P284In case of inadequate ventilation wear respiratory protection.
  • P301 + P317If swallowed: Get medical help.
  • 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.
  • P305 + P354 + P338If in eyes: Immediately rinse with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
  • P316Get emergency medical help immediately.
  • P317Get medical help.
  • P318If exposed or concerned, get medical advice.
  • P319Get medical help if you feel unwell.
  • P320Specific treatment is urgent (see supplemental first aid instructions on the label).
  • P330Rinse mouth.
  • P337 + P317If eye irritation persists: Get medical help.
  • 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-Propynoxyethanol suppliers

Sponsored listings first, then the documented ranking: membership, verification, replies, completeness, freshness and ratings

All 16 suppliers
16 of 16 offers

Suppliers marked Unclaimed profile have not claimed their profile yet. They are not verified by CompoundList, their offers are price on request and details may have changed, so please confirm them with the supplier. Company representatives can claim a profile with a business email on the company's own website domain. Our team verifies each claim and sends the result by email.

Where suppliers are based

16 suppliers in 5 countries

Send one request to many suppliers

Choose up to 10 suppliers or let us match your request. Compare quotes side by side, free.

Choose suppliersPost a request

2-Propynoxyethanol price

Indicative price range per kg from live supplier offers

No published prices right now

Suppliers quote this chemical on request. Send one free request and compare quotes side by side.

Get latest price

Uses and applications

What the substance is used for, by industry and function

Industries and functions

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-Propynoxyethanol is traded under.

HS 2909.44Indicative HS code

Monoalkylethers of ethylene glycol or of diethylene glycol not elsewhere classified in heading 2909

World exports in 2024
$212M
−10.4% vs 2023, imports $217M
2019 to 2024
Top exporters
  1. United States34.9%
  2. Belgium14.4%
  3. China13.6%
Top importers
  1. South Korea12.8%
  2. Switzerland * partner reported8.6%
  3. Belgium7.9%

* Partner reported figures, a lower bound.

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

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

Frequently asked questions

Quick answers about 2-Propynoxyethanol, based on the data on this page

What is 2-Propynoxyethanol?

2-Propynoxyethanol is a chemical substance with the molecular formula C5H8O2 and a molar mass of 100.12 g/mol. Its CAS registry number is 3973-18-0. The IUPAC name is 2-prop-2-ynoxyethanol.

What is the CAS number of 2-Propynoxyethanol?

The CAS registry number of 2-Propynoxyethanol is 3973-18-0.

What is the molecular formula and weight of 2-Propynoxyethanol?

The molecular formula of 2-Propynoxyethanol is C5H8O2 and its molar mass is 100.12 g/mol.

What is 2-Propynoxyethanol used for?

Known uses and roles of 2-Propynoxyethanol include surfactants in home care and cleaning.

Is 2-Propynoxyethanol hazardous?

2-Propynoxyethanol carries the GHS signal word "Danger". Main hazards: harmful if swallowed, causes serious eye damage, causes serious eye irritation. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of 2-Propynoxyethanol?

2-Propynoxyethanol is usually classified under HS code 290944 (Ether-alcohols and their halogenated, sulphonated, nitrated or nitrosated derivatives…). This is indicative, confirm it with your customs broker before shipping.

Where can I buy 2-Propynoxyethanol?

CompoundList lists 16 suppliers of 2-Propynoxyethanol in China, United States, India, Germany and 1 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-Propynoxyethanol in India?

2 suppliers in India list 2-Propynoxyethanol 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-Propynoxyethanol?

Suppliers quote 2-Propynoxyethanol 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-Propynoxyethanol

Get quotes for 2-Propynoxyethanol

Post one free request with your grade, quantity and destination. Matching suppliers send quotes you can compare side by side.
Post a request Sell 2-Propynoxyethanol
Data last updated 7 Oct 2026. Details may have changed, please confirm them with the supplier. Report an error on this page
Embed this structure on your websiteShow code

Paste this code into your page to show the 2D structure of 2-Propynoxyethanol with a 3D view, its CAS number where known and a link back to this page. Free to use with the link kept.

<iframe src="https://www.compoundlist.com/embed/structure/2-propynoxyethanol-3973-18-0" title="2-Propynoxyethanol structure on CompoundList" width="360" height="420" style="border:1px solid #E7E2DA;border-radius:12px;max-width:100%" loading="lazy" referrerpolicy="strict-origin-when-cross-origin"></iframe>
Preview the embed

Explore more in Nonionic surfactants or HS code 290944

16 suppliers
Free quotes, contact stays private
Get quotes