CompoundList
Sign in
Aromatic building blocks

Phthalofyne

Also known as Ftalofyne, Ftalofynum, Ftalofina

CAS 131-67-9Formula C14H14O4Molar mass 246.26 g/mol
Get quotes Safety data
Phthalofyne chemical structure, C14H14O4, CAS 131-67-9
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
131-67-9
Formula
C14H14O4
Molar mass
246.26 g/mol
HS code
291734
Category
Aromatic building blocks

What is Phthalofyne?

Plain description, key identifiers and synonyms

Phthalofyne is a chemical substance with the molecular formula C14H14O4 and a molar mass of 246.26 g/mol. Its CAS registry number is 131-67-9. The IUPAC name is 2-(3-methylpent-1-yn-3-yloxycarbonyl)benzoic acid.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
2-(3-methylpent-1-yn-3-yloxycarbonyl)benzoic acid
CAS number
131-67-9 CAS number cross-checkedOther or deprecated CAS: 16509-28-7
Molecular formula
C14H14O4
UNII
TA9XO4D05J
InChIKey
CZGIRAWWWHPJHM-UHFFFAOYSA-N
InChI
InChI=1S/C14H14O4/c1-4-14(3,5-2)18-13(17)11-9-7-6-8-10(11)12(15)16/h1,6-9H,5H2,2-3H3,(H,15,16)
SMILES (canonical and isomeric)
CCC(C)(C#C)OC(=O)C1=CC=CC=C1C(=O)O

Synonyms

  • Ftalofyne
  • Ftalofynum
  • Ftalofina
  • 1,2-Benzenedicarboxylic acid, mono(1-ethyl-1-methyl-2-propynyl) ester
  • 2-(((3-Methylpent-1-yn-3-yl)oxy)carbonyl)benzoic acid
  • 2-{[(3-methylpent-1-yn-3-yl)oxy]carbonyl}benzoic acid
  • 1,2-Benzenedicarboxylic acid, 1-(1-ethyl-1-methyl-2-propyn-1-yl) ester
  • Whipcide
  • Methalofyne
  • 2-(3-methylpent-1-yn-3-yloxycarbonyl)benzoic acid
  • Mono(1-ethyl-1-methyl-2-propynyl) phthalate
  • 3-Methyl-1-pentyn-3-yl acid phthalate
  • 1-Pentyn-3-ol, 3-methyl-, phthalate monoester
  • Phthalic acid, 3-methyl-1-pentyn-3-yl monoester
  • Ftalofyne (INN)
  • Phthalofyne (USAN)
  • Phthalic acid, mono(1-ethyl-1-methyl-2-propynyl) ester
  • Ftalofino
  • 1-Ethyl-1-methyl-2-propynyl phthalate
  • 2-([(1-Ethyl-1-methyl-2-propynyl)oxy]carbonyl)benzoic acid #
  • 2-{[(1-ethyl-1-methyl-2-propynyl)oxy]carbonyl}benzoic acid

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
246.26 g/molcalc.
Exact mass
246.0892 Dacalc.
LogP (octanol/water)
2.34calc.
Topological polar surface area
63.6 Ųcalc.
Hydrogen bond donors
1calc.
Hydrogen bond acceptors
3calc.
Rotatable bonds
4calc.
Heavy atoms
18calc.
Rings
1calc.
Aromatic rings
1calc.
Fraction sp3 carbons
0.29calc.
Formal charge
0calc.
Stereocentres
1calc.
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, c1ccccc1

c1ccccc1

1 ring, 6 atoms, the Benzene ring system.

485,677 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

No GHS hazard classification is recorded for this substance yet. That does not mean it is harmless.

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

Phthalofyne suppliers

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

No supplier listings yet

Post one free request and suppliers who make or trade Phthalofyne can send you quotes. Your contact details stay private until you accept a quote.

Request quotesSell this chemical

Phthalofyne 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

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 Phthalofyne is traded under.

HS 2917.34Indicative HS code

Aromatic polycarboxylic acids, other esters of orthophthalic acids

World exports in 2024
$279M
−7.8% vs 2023, imports $292M
2019 to 2024
Top exporters
  1. China18.7%
  2. India * partner reported16.0%
  3. South Korea14.2%
Top importers
  1. United States10.6%
  2. Germany8.7%
  3. China8.0%

* Partner reported figures, a lower bound.

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

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

Frequently asked questions

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

What is Phthalofyne?

Phthalofyne is a chemical substance with the molecular formula C14H14O4 and a molar mass of 246.26 g/mol. Its CAS registry number is 131-67-9. The IUPAC name is 2-(3-methylpent-1-yn-3-yloxycarbonyl)benzoic acid.

What is the CAS number of Phthalofyne?

The CAS registry number of Phthalofyne is 131-67-9. Other or deprecated CAS numbers: 16509-28-7.

What is the molecular formula and weight of Phthalofyne?

The molecular formula of Phthalofyne is C14H14O4 and its molar mass is 246.26 g/mol.

What is Phthalofyne used for?

Known uses and roles of Phthalofyne include building blocks in research and laboratory and screening compounds in research and laboratory.

Is Phthalofyne hazardous?

No GHS hazard classification for Phthalofyne is recorded on CompoundList yet. That does not prove it is safe. Always read the supplier safety data sheet.

What is the HS code of Phthalofyne?

Phthalofyne is usually classified under HS code 291734 (Aromatic polycarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and…). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Phthalofyne?

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

What is the price of Phthalofyne?

Suppliers quote Phthalofyne 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 Phthalofyne

Get quotes for Phthalofyne

Post one free request with your grade, quantity and destination. Matching suppliers send quotes you can compare side by side.
Post a request Sell Phthalofyne
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 Phthalofyne 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/phthalofyne-131-67-9" title="Phthalofyne 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 Aromatic building blocks or HS code 291734

Price on request
Free quotes, contact stays private
Get quotes