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Alcohols and polyols

Propylethinylcarbinol

Also known as 1-HEXYN-3-OL, hex-1-yn-3-ol, 1-Hexyne-3-ol

CAS 105-31-7Formula C6H10OMolar mass 98.15 g/molEC 203-286-7
GHS signal word: Danger. Pictograms: Flammable, Corrosive, Acute toxicity (severe) 2 suppliers listed
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Propylethinylcarbinol chemical structure, C6H10O, CAS 105-31-7
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
105-31-7
Formula
C6H10O
Molar mass
98.15 g/mol
Physical form
Liquid
HS code
290529
Category
Alcohols and polyols
Illustrative photo, 200 litre blue HDPE drums of liquid in a warehouse
Typical packagingIllustrative packaging image, not the actual product

What is Propylethinylcarbinol?

Plain description, key identifiers and synonyms

Propylethinylcarbinol is a chemical substance with the molecular formula C6H10O and a molar mass of 98.15 g/mol. Its CAS registry number is 105-31-7. The IUPAC name is hex-1-yn-3-ol.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
hex-1-yn-3-ol
CAS number
105-31-7 CAS number cross-checked
EC number
203-286-7
Molecular formula
C6H10O
UNII
R9B2WH0KBL
MDL number
MFCD00014408
InChIKey
LTFTWJYRQNTCHI-UHFFFAOYSA-N
InChI
InChI=1S/C6H10O/c1-3-5-6(7)4-2/h2,6-7H,3,5H2,1H3
SMILES (canonical and isomeric)
CCCC(C#C)O

Synonyms

  • 1-HEXYN-3-OL
  • hex-1-yn-3-ol
  • 1-Hexyne-3-ol
  • 1-Propylpropargyl alcohol
  • 3-Hydroxy-1-hexyne
  • (RS)-1-HEXYN-3-OL
  • 4-01-00-02234 (Beilstein Handbook Reference)
  • (+-)-1-HEXYN-3-OL
  • (+-)-3-Hydroxyhex-1-yne
  • 1-hexine-3-ol
  • (+/-)-1-HEXYN-3-OL
  • (+/-)-3-Hydroxyhex-1-yne
  • 1-Hexyn-3-ol, 90%, technical grade

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.

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
98.15 g/molcalc.
Exact mass
98.0732 Dacalc.
LogP (octanol/water)
0.78calc.
Topological polar surface area
20.23 Ųcalc.
Hydrogen bond donors
1calc.
Hydrogen bond acceptors
1calc.
Rotatable bonds
2calc.
Heavy atoms
7calc.
Rings
0calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0.67calc.
Formal charge
0calc.
Stereocentres
1calc.
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
GHS02: Flammable
Flammable
GHS05: Corrosive
Corrosive
GHS06: Acute toxicity (severe)
Acute toxicity (severe)

Hazard statements

  • H226Flammable liquid and vapour.
  • H301Toxic if swallowed.
  • H310Fatal in contact with skin.
  • H318Causes serious eye damage.
Precautionary statements (24)
  • P210Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
  • P233Keep container tightly closed.
  • P240Ground and bond container and receiving equipment.
  • P241Use explosion-proof electrical, ventilating and lighting equipment.
  • P242Use non-sparking tools.
  • P243Take action to prevent static discharges.
  • P262Do not get in eyes, on skin, or on clothing.
  • 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.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P301 + P316If swallowed: Get emergency medical help immediately.
  • P302 + P352If on skin: Wash with plenty of water.
  • P303 + P361 + P353If on skin (or hair): Take off immediately all contaminated clothing. Rinse skin with water or shower.
  • 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.
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P330Rinse mouth.
  • P361 + P364Take off immediately all contaminated clothing. And wash it before reuse.
  • P370 + P378In case of fire: Use appropriate media to extinguish.
  • P403 + P235Store in a well-ventilated place. Keep cool.
  • 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

Propylethinylcarbinol suppliers

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All 2 suppliers

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

2 suppliers in 2 countries

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Propylethinylcarbinol 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

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 Propylethinylcarbinol is traded under.

HS 2905.29Indicative HS code

Unsaturated monohydric alcohols, other

World exports in 2024
$361M
−8.5% vs 2023, imports $367M
2019 to 2024
Top exporters
  1. China26.8%
  2. Japan20.6%
  3. India * partner reported11.6%
Top importers
  1. China15.7%
  2. United States14.7%
  3. Germany8.2%

* Partner reported figures, a lower bound.

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

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

Frequently asked questions

Quick answers about Propylethinylcarbinol, based on the data on this page

What is Propylethinylcarbinol?

Propylethinylcarbinol is a chemical substance with the molecular formula C6H10O and a molar mass of 98.15 g/mol. Its CAS registry number is 105-31-7. The IUPAC name is hex-1-yn-3-ol.

What is the CAS number of Propylethinylcarbinol?

The CAS registry number of Propylethinylcarbinol is 105-31-7.

What is the molecular formula and weight of Propylethinylcarbinol?

The molecular formula of Propylethinylcarbinol is C6H10O and its molar mass is 98.15 g/mol.

What is Propylethinylcarbinol used for?

Known uses and roles of Propylethinylcarbinol include building blocks in research and laboratory.

Is Propylethinylcarbinol hazardous?

Propylethinylcarbinol carries the GHS signal word "Danger". Main hazards: flammable liquid and vapour, toxic if swallowed, fatal in contact with skin. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Propylethinylcarbinol?

Propylethinylcarbinol is usually classified under HS code 290529 (Unsaturated monohydric alcohols, other). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Propylethinylcarbinol?

CompoundList lists 2 suppliers of Propylethinylcarbinol in India and United States. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

Where can I buy Propylethinylcarbinol in India?

1 supplier in India list Propylethinylcarbinol on CompoundList. Filter the suppliers list by country and send a request to compare prices, grades and delivery times.

What is the price of Propylethinylcarbinol?

Suppliers quote Propylethinylcarbinol 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 Propylethinylcarbinol

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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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