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Other active pharmaceutical ingredients

Iothalamic acid

Also known as iotalamic acid, 3-acetamido-2,4,6-triiodo-5-(methylcarbamoyl)benzoic acid, Acido iotalamico

CAS 2276-90-6Formula C11H9I3N2O4Molar mass 613.92 g/molEC 218-897-4
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Iothalamic acid chemical structure, C11H9I3N2O4, CAS 2276-90-6
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
2276-90-6
Formula
C11H9I3N2O4
Molar mass
613.92 g/mol
EC number
218-897-4
HS code
292429
Category
Other active pharmaceutical ingredients

What is Iothalamic acid?

Plain description, key identifiers and synonyms

Iotalamic acid is an organic molecular entity.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
3-acetamido-2,4,6-triiodo-5-(methylcarbamoyl)benzoic acid
CAS number
2276-90-6 CAS number cross-checked
EC number
218-897-4
Molecular formula
C11H9I3N2O4
UNII
16CHD79MIX
MDL number
MFCD00800738
InChIKey
UXIGWFXRQKWHHA-UHFFFAOYSA-N
InChI
InChI=1S/C11H9I3N2O4/c1-3(17)16-9-7(13)4(10(18)15-2)6(12)5(8(9)14)11(19)20/h1-2H3,(H,15,18)(H,16,17)(H,19,20)
SMILES (canonical and isomeric)
CC(=O)NC1=C(C(=C(C(=C1I)C(=O)O)I)C(=O)NC)I

Synonyms

  • iotalamic acid
  • 3-acetamido-2,4,6-triiodo-5-(methylcarbamoyl)benzoic acid
  • Acido iotalamico
  • Acide iotalamique
  • Acidum iotalamicum
  • Benzoic acid, 3-(acetylamino)-2,4,6-triiodo-5-((methylamino)carbonyl)-
  • Acid, Iotalamic
  • AngioConray
  • Angio Conray
  • Acid, Iothalamic
  • Acid, Methalamic
  • Iothalamate, Sodium
  • Iothalamic Acid, Monosodium Salt
  • 3-Acetylamino-2,4,6-triiodo-5-(methylaminocarbonyl)benzoic acid
  • Methalamic Acid
  • 5-Acetamido-2,4,6-triiodo-N-methylisophthalamic acid
  • Benzoic acid,3-(acetylamino)-2,4,6-triiodo-5-[(methylamino)carbonyl]-
  • Acidum jotalamicum
  • MI 216
  • 3-(acetylamino)-2,4,6-triiodo-5-[(methylamino)carbonyl]benzoic acid
  • iothalamic-acid-d3
  • Iothalamic acid (USP)
  • Iotalamic acid (Standard)
  • Iothalamate
  • Iotalamic acid (JP17/INN)

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
613.92 g/molcalc.
Exact mass
613.7697 Dacalc.
LogP (octanol/water)
2.52calc.
Topological polar surface area
95.5 Ųcalc.
Hydrogen bond donors
3calc.
Hydrogen bond acceptors
3calc.
Rotatable bonds
3calc.
Heavy atoms
20calc.
Rings
1calc.
Aromatic rings
1calc.
Fraction sp3 carbons
0.18calc.
Formal charge
0calc.
Stereocentres
0calc.
Lipinski rule of five
Passes (1 violation)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.

Iothalamic acid suppliers

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

All 52 suppliers
30 of 30 offers

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

52 suppliers in 11 countries

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Iothalamic 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

Pharmacological actions

  • Contrast Media

Pharmacology

Iothalamic acid is a Radiographic Contrast Agent. The mechanism of action of iothalamic acid is as a X-Ray Contrast Activity.

Regulatory status

Inventories, regulations and trade controls that list this substance

Health and food

  • Active ingredient in FDA approved drug labels

HS code and trade data

Customs classification and reported world trade statistics

Global trade

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

Frequently asked questions

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

What is Iothalamic acid?

Iotalamic acid is an organic molecular entity.

What is the CAS number of Iothalamic acid?

The CAS registry number of Iothalamic acid is 2276-90-6.

What is the molecular formula and weight of Iothalamic acid?

The molecular formula of Iothalamic acid is C11H9I3N2O4 and its molar mass is 613.92 g/mol.

What is Iothalamic acid used for?

Known uses and roles of Iothalamic acid include contrast media.

Is Iothalamic acid hazardous?

No GHS hazard classification for Iothalamic acid 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 Iothalamic acid?

Iothalamic 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 Iothalamic acid?

CompoundList lists 52 suppliers of Iothalamic acid in United States, China, Spain, United Kingdom and 7 more. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

What is the price of Iothalamic acid?

Suppliers quote Iothalamic 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 Iothalamic 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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