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Carboxylic acids and anhydrides

Phthalamic acid

Also known as 2-carbamoylbenzoic acid, Phthalamidic acid, Benzoic acid, 2-(aminocarbonyl)-

CAS 88-97-1Formula C8H7NO3Molar mass 165.15 g/molEC 201-871-1
GHS signal word: Warning. Pictograms: Harmful or irritant 2 suppliers listed
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Phthalamic acid chemical structure, C8H7NO3, CAS 88-97-1
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
88-97-1
Formula
C8H7NO3
Molar mass
165.15 g/mol
EC number
201-871-1
HS code
292429
Category
Carboxylic acids and anhydrides

What is Phthalamic acid?

Plain description, key identifiers and synonyms

2-carbamoylbenzoic acid is a carbamoylbenzoic acid.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
2-carbamoylbenzoic acid
CAS number
88-97-1 CAS number cross-checked
EC number
201-871-1
Molecular formula
C8H7NO3
UNII
V344H4PF3Y
MDL number
MFCD00025476
InChIKey
CYMRPDYINXWJFU-UHFFFAOYSA-N
InChI
InChI=1S/C8H7NO3/c9-7(10)5-3-1-2-4-6(5)8(11)12/h1-4H,(H2,9,10)(H,11,12)
SMILES (canonical and isomeric)
C1=CC=C(C(=C1)C(=O)N)C(=O)O

Synonyms

  • 2-carbamoylbenzoic acid
  • Phthalamidic acid
  • Benzoic acid, 2-(aminocarbonyl)-
  • Phthalamide acid
  • Phthalic acid monoamide
  • Phthalic monoamide
  • o-Carbamoylbenzoic acid
  • 2-(Aminocarbonyl)benzoic acid
  • Benzoic acid, o-carbamoyl-
  • phthalicimide
  • folpet TP3
  • Phthalamic acid, 97%
  • 2-(Aminocarbonyl)-benzoic acid
  • KLW

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
165.15 g/molcalc.
Exact mass
165.0426 Dacalc.
LogP (octanol/water)
0.48calc.
Topological polar surface area
80.39 Ųcalc.
Hydrogen bond donors
2calc.
Hydrogen bond acceptors
2calc.
Rotatable bonds
2calc.
Heavy atoms
12calc.
Rings
1calc.
Aromatic rings
1calc.
Fraction sp3 carbons
0calc.
Formal charge
0calc.
Stereocentres
0calc.
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

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

Phthalamic acid 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 2 countries

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Phthalamic acid 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.

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Uses and applications

What the substance is used for, by industry and function

Use classes: Pesticide transformation products.

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 Phthalamic acid is traded under.

HS 2924.29Indicative HS code

Cyclic amides (including cyclic carbamates) and their derivatives, salts thereof, other

World exports in 2024
$5.69B
−5.1% vs 2023, imports $5.8B
2019 to 2024
Top exporters
  1. China32.3%
  2. Switzerland * partner reported13.6%
  3. Norway * partner reported12.8%
Top importers
  1. United States15.9%
  2. Ireland15.8%
  3. Germany11.9%

* Partner reported figures, a lower bound.

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

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

Frequently asked questions

Quick answers about Phthalamic acid, based on the data on this page

What is Phthalamic acid?

2-carbamoylbenzoic acid is a carbamoylbenzoic acid.

What is the CAS number of Phthalamic acid?

The CAS registry number of Phthalamic acid is 88-97-1.

What is the molecular formula and weight of Phthalamic acid?

The molecular formula of Phthalamic acid is C8H7NO3 and its molar mass is 165.15 g/mol.

What is Phthalamic acid used for?

Use classes: Pesticide transformation products.

Is Phthalamic acid hazardous?

Phthalamic acid 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 Phthalamic acid?

Phthalamic acid is usually classified under HS code 292429 (Cyclic amides (including cyclic carbamates) and their derivatives, salts thereof, other). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Phthalamic acid?

CompoundList lists 2 suppliers of Phthalamic acid in Canada and Germany. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

What is the price of Phthalamic acid?

Suppliers quote Phthalamic acid 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 Phthalamic acid

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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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