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Amines and amides

Pent-4-ynamide

Also known as 4-Pentynamide

CAS 98142-64-4Formula C5H7NOMolar mass 97.12 g/molEC 961-328-6
GHS signal word: Warning. Pictograms: Harmful or irritant
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Pent-4-ynamide chemical structure, C5H7NO, CAS 98142-64-4
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
98142-64-4
Formula
C5H7NO
Molar mass
97.12 g/mol
EC number
961-328-6
HS code
292419
Category
Amines and amides

What is Pent-4-ynamide?

Plain description, key identifiers and synonyms

Pent-4-ynamide is a chemical substance with the molecular formula C5H7NO and a molar mass of 97.12 g/mol. Its CAS registry number is 98142-64-4.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
pent-4-ynamide
CAS number
98142-64-4
EC number
961-328-6
Molecular formula
C5H7NO
MDL number
MFCD19203528
InChIKey
KNEPBZMJMJUNQX-UHFFFAOYSA-N
InChI
InChI=1S/C5H7NO/c1-2-3-4-5(6)7/h1H,3-4H2,(H2,6,7)
SMILES (canonical and isomeric)
C#CCCC(=O)N

Synonyms

  • 4-Pentynamide

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
97.12 g/molcalc.
Exact mass
97.0528 Dacalc.
LogP (octanol/water)
-0.11calc.
Topological polar surface area
43.09 Ųcalc.
Hydrogen bond donors
1calc.
Hydrogen bond acceptors
1calc.
Rotatable bonds
2calc.
Heavy atoms
7calc.
Rings
0calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0.4calc.
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
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

Pent-4-ynamide suppliers

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Pent-4-ynamide 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

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 Pent-4-ynamide is traded under.

HS 2924.19Indicative HS code

Acyclic amides (including acyclic carbamates) and their derivatives, salts thereof, other

World exports in 2024
$2.38B
−1.7% vs 2023, imports $2.22B
2019 to 2024
Top exporters
  1. China34.7%
  2. Germany12.5%
  3. India * partner reported6.8%
Top importers
  1. United States17.5%
  2. Germany8.8%
  3. India * partner reported6.7%

* Partner reported figures, a lower bound.

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

The HS code shown for Pent-4-ynamide is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about Pent-4-ynamide, based on the data on this page

What is Pent-4-ynamide?

Pent-4-ynamide is a chemical substance with the molecular formula C5H7NO and a molar mass of 97.12 g/mol. Its CAS registry number is 98142-64-4.

What is the CAS number of Pent-4-ynamide?

The CAS registry number of Pent-4-ynamide is 98142-64-4.

What is the molecular formula and weight of Pent-4-ynamide?

The molecular formula of Pent-4-ynamide is C5H7NO and its molar mass is 97.12 g/mol.

What is Pent-4-ynamide used for?

Known uses and roles of Pent-4-ynamide include building blocks in research and laboratory.

Is Pent-4-ynamide hazardous?

Pent-4-ynamide 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 Pent-4-ynamide?

Pent-4-ynamide is usually classified under HS code 292419 (Acyclic amides (including acyclic carbamates) and their derivatives, salts thereof, other). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Pent-4-ynamide?

Post a free request on CompoundList and suppliers of Pent-4-ynamide will send you quotes. Your contact details stay private until you accept a quote.

What is the price of Pent-4-ynamide?

Suppliers quote Pent-4-ynamide 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 Pent-4-ynamide

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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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