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Alcohols and polyols

1-Pentol

Also known as (Z)-3-Methylpent-2-en-4-yn-1-ol, 1-Pentol cis-form, 1-Pentol, (Z)-

CAS 6153-05-5Formula C6H8OMolar mass 96.13 g/molEC 203-284-6
GHS signal word: Danger. Pictograms: Flammable, Corrosive, Acute toxicity (severe) 2 suppliers listed
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1-Pentol chemical structure, C6H8O, CAS 6153-05-5
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
6153-05-5
Formula
C6H8O
Physical form
Liquid
HS code
290529
Category
Alcohols and polyols
UN number
UN 2705
Illustrative photo, closed amber glass reagent bottles on a laboratory bench
Typical packagingIllustrative packaging image, not the actual product

What is 1-Pentol?

Plain description, key identifiers and synonyms

1-Pentol is a chemical substance with the molecular formula C6H8O and a molar mass of 96.13 g/mol. Its CAS registry number is 6153-05-5. The IUPAC name is (Z)-3-methylpent-2-en-4-yn-1-ol.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
(Z)-3-methylpent-2-en-4-yn-1-ol
CAS number
6153-05-5Other or deprecated CAS: 105-29-3
EC numbers
203-284-6, 228-168-2
Molecular formula
C6H8O
UNII
C3L27C7DKP, USK803U25I
MDL number
MFCD00042661, MFCD00063203
InChIKey
ZSJHASYJQIRSLE-XQRVVYSFSA-N
InChI
InChI=1S/C6H8O/c1-3-6(2)4-5-7/h1,4,7H,5H2,2H3/b6-4-
Canonical SMILES
C#CC(C)=CCO
Isomeric SMILES
C/C(=C/CO)/C#C

Synonyms

  • (Z)-3-Methylpent-2-en-4-yn-1-ol
  • 1-Pentol cis-form
  • 1-Pentol, (Z)-
  • (2Z)-3-Methyl-2-penten-4-yn-1-ol
  • 2-Penten-4-yn-1-ol, 3-methyl-, (2Z)-
  • 1'-Pentol
  • 1-Pentol cis form
  • cis-3-Methyl-2-pentene-4-yn-1-ol
  • cis-3-Methyl-2-penten-4-yn-1-ol
  • 2-Penten-4-yn-1-ol, 3-methyl-, (Z)-
  • 3Methylpent2en4yn1ol
  • 2Penten4yn1ol, 3methyl
  • Pentol (emulsifier)
  • 3-Methyl-2-penten-4-ynol
  • 3-Methyl-2-penten-4-yl-1-ol
  • 5-Hydroxy-3-methylpent-3-en-1-yne
  • (Z)-3-Methyl-2-penten-4-yn-1-ol
  • (2Z)-3-methylpent-2-en-4-yn-1-ol
  • (Z)-3-Methylpent-3-en-1-yn-5-ol
  • 2Z)-3-Methyl-2-penten-4-yn-1-ol, Z-3-Methyl-2-penten-4-yn-1-ol, cis-3-Methyl-2-penten-4-yn-1-ol, cis-3-Methyl-2-pentene-4-yn-1-ol,
  • 1-Pentol [UN2705] [Corrosive]
  • (Z)-1-pentol
  • Z-3-methylpent-2-en-4-yn-1-ol

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
96.13 g/molcalc.
Exact mass
96.0575 Dacalc.
LogP (octanol/water)
0.56calc.
Topological polar surface area
20.23 Ųcalc.
Hydrogen bond donors
1calc.
Hydrogen bond acceptors
1calc.
Rotatable bonds
1calc.
Heavy atoms
7calc.
Rings
0calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0.33calc.
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
GHS02: Flammable
Flammable
GHS05: Corrosive
Corrosive
GHS06: Acute toxicity (severe)
Acute toxicity (severe)

Hazard statements

  • H225Highly flammable liquid and vapour.
  • H226Flammable liquid and vapour.
  • H301Toxic if swallowed.
  • H314Causes severe skin burns and eye damage.
  • H318Causes serious eye damage.
Precautionary statements (26)
  • 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.
  • P260Do not breathe 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.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P301 + P316If swallowed: Get emergency medical help immediately.
  • P301 + P330 + P331If swallowed: Rinse mouth. Do not induce vomiting.
  • P302 + P361 + P354If on skin: Take off immediately all contaminated clothing. Immediately rinse with water for several minutes.
  • P303 + P361 + P353If on skin (or hair): Take off immediately all contaminated clothing. Rinse skin with water or shower.
  • P304 + P340If inhaled: Remove person to fresh air and keep comfortable for breathing.
  • 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.
  • P363Wash contaminated clothing 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.
UN number
UN 2705
Transport hazard class
8
Packing group
II

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

1-Pentol suppliers

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

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 1 country

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1-Pentol price

Indicative price range per kg from live supplier offers

No published prices right now

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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

No regulatory list memberships are recorded for this substance yet. Always check the rules of the importing and exporting country before trade.

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code 1-Pentol 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 1-Pentol is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about 1-Pentol, based on the data on this page

What is 1-Pentol?

1-Pentol is a chemical substance with the molecular formula C6H8O and a molar mass of 96.13 g/mol. Its CAS registry number is 6153-05-5. The IUPAC name is (Z)-3-methylpent-2-en-4-yn-1-ol.

What is the CAS number of 1-Pentol?

The CAS registry number of 1-Pentol is 6153-05-5. Other or deprecated CAS numbers: 105-29-3.

What is the molecular formula and weight of 1-Pentol?

The molecular formula of 1-Pentol is C6H8O and its molar mass is 96.13 g/mol.

What is 1-Pentol used for?

Known uses and roles of 1-Pentol include building blocks in research and laboratory.

Is 1-Pentol hazardous?

1-Pentol carries the GHS signal word "Danger". Main hazards: highly flammable liquid and vapour, flammable liquid and vapour, toxic if swallowed. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of 1-Pentol?

1-Pentol 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 1-Pentol?

CompoundList lists 2 suppliers of 1-Pentol in China. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

What is the price of 1-Pentol?

Suppliers quote 1-Pentol 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 1-Pentol

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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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