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Antibiotics and anti-infectives

Nitazoxanide

Also known as Alinia, Nitazoxanida, Nitazoxanidum

CAS 55981-09-4Formula C12H9N3O5SMolar mass 307.29 g/molEC 259-931-8
GHS signal word: Warning. Pictograms: Harmful or irritant 137 suppliers listed Drug substance
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Nitazoxanide chemical structure, C12H9N3O5S, CAS 55981-09-4
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
55981-09-4
Formula
C12H9N3O5S
Molar mass
307.29 g/mol
EC number
259-931-8
HS code
293410
Category
Antibiotics and anti-infectives

What is Nitazoxanide?

Plain description, key identifiers and synonyms

Acetic acid [2-[[(5-nitro-2-thiazolyl)amino]-oxomethyl]phenyl] ester is a member of benzamides and a carboxylic ester. It is functionally related to a salicylamide.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
[2-[(5-nitro-1,3-thiazol-2-yl)carbamoyl]phenyl] acetate
CAS number
55981-09-4 CAS number cross-checked
EC number
259-931-8
Molecular formula
C12H9N3O5S
UNII
SOA12P041N
MDL number
MFCD00416599
InChIKey
YQNQNVDNTFHQSW-UHFFFAOYSA-N
InChI
InChI=1S/C12H9N3O5S/c1-7(16)20-9-5-3-2-4-8(9)11(17)14-12-13-6-10(21-12)15(18)19/h2-6H,1H3,(H,13,14,17)
SMILES (canonical and isomeric)
CC(=O)OC1=CC=CC=C1C(=O)NC2=NC=C(S2)[N+](=O)[O-]

Synonyms

  • Alinia
  • Nitazoxanida
  • Nitazoxanidum
  • Benzamide, 2-(acetyloxy)-N-(5-nitro-2-thiazolyl)-
  • 2-[(5-nitro-1,3-thiazol-2-yl)carbamoyl]phenyl acetate
  • 2-(Acetolyloxy)-N-(5-nitro-2-thiazolyl)benzamide
  • PH 5776
  • Salicylamide, N-(5-nitro-2-thiazolyl)-, acetate (ester)
  • 2-((5-nitro-1,3-thiazol-2-yl)carbamoyl)phenyl acetate
  • Salicylamide, N-(5-nitro-2-thiazolyl)-, Acetate(Ester)
  • 2-((5-nitrothiazol-2-yl)carbamoyl)phenyl acetate
  • Nitazoxamide
  • Nitazoxanid
  • Daxon
  • [2-[(5-nitro-1,3-thiazol-2-yl)carbamoyl]phenyl] acetate
  • 2-(Acetyloxy)-N-(5-nitro-2-thiazolyl)benzamide
  • Nitrazoxanide
  • NTZ
  • 2-Acetyloxy-N-[(5-nitro-2-thiazolyl)]benzamide
  • N-(5-Nitrothiazol-2-yl)salicylamide acetate ester
  • [2-[(5-nitrothiazol-2-yl)carbamoyl]phenyl] acetate
  • o-(N-(5-Nitrothiazol-2-yl)carbamoyl)phenyl acetate
  • O-[N-(5-nitrothiazol-2-yl)carbamoyl]phenyl acetate
  • Colufase
  • Cryptaz
Show all 34 synonyms
  • Heliton
  • Phavic-1
  • Alinia (TN)
  • 2-[(5-Nitrothiazol-2-yl)carbamoyl]phenyl Acetate
  • Nitazoxanide (USAN/INN)
  • (2-((5-Nitro-2-thiazolyl)carbamoyl)phenyl)acetat
  • N-(5-Nitro-2-thiazolyl)salicylamide acetate (ester)
  • Alinia(TM)
  • Nitazoxanide (Standard)

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
307.29 g/molcalc.
Exact mass
307.0263 Dacalc.
LogP (octanol/water)
2.23calc.
Topological polar surface area
111.4 Ųcalc.
Hydrogen bond donors
1calc.
Hydrogen bond acceptors
7calc.
Rotatable bonds
4calc.
Heavy atoms
21calc.
Rings
2calc.
Aromatic rings
2calc.
Fraction sp3 carbons
0.08calc.
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, O=C(Nc1nccs1)c1ccccc1

O=C(Nc1nccs1)c1ccccc1

2 rings, 14 atoms, the N-2-Thiazolylbenzamide ring system.

752 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

  • H302Harmful if swallowed.
  • H315Causes skin irritation.
  • H319Causes serious eye irritation.
  • H335May cause respiratory irritation.
Precautionary statements (19)
  • P261Avoid breathing 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.
  • P271Use only outdoors or in a well-ventilated area.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P301 + P317If swallowed: Get medical help.
  • 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).
  • P330Rinse mouth.
  • 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

Nitazoxanide suppliers

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All 137 suppliers
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Where suppliers are based

137 suppliers in 21 countries

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Nitazoxanide 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

Use classes: Animal Drugs.

Pharmacological actions

  • Antiparasitic Agents

Roles

  • anti-HBV agent
  • anti-HIV agent
  • antiamoebic agent
  • antibacterial agent
  • antibacterial drug
  • antidiarrhoeal drug
  • antiinfective agent
  • antimicrobial agent
  • antimicrobial drug
  • antimycobacterial drug
  • antiparasitic agent
  • antirheumatic drug
  • antispasmodic drug
  • antitubercular agent
  • antiviral agent
  • gastrointestinal drug
  • hypoglycemic agent
  • muscle relaxant
  • neuromuscular agent
  • pharmaceutical
  • protective agent
  • renoprotective agent

Pharmacology

Nitazoxanide is an Antiprotozoal.

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 Nitazoxanide is traded under.

HS 2934.10Indicative HS code

Compounds containing an unfused thiazole ring (whether or not hydrogenated) in the…

World exports in 2024
$3.88B
−16.1% vs 2023, imports $3.12B
2019 to 2024
Top exporters
  1. Switzerland * partner reported36.4%
  2. Ireland28.8%
  3. China10.0%
Top importers
  1. Canada33.4%
  2. United States14.4%
  3. Ireland13.1%

* Partner reported figures, a lower bound.

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

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

Frequently asked questions

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

What is Nitazoxanide?

Acetic acid [2-[[(5-nitro-2-thiazolyl)amino]-oxomethyl]phenyl] ester is a member of benzamides and a carboxylic ester. It is functionally related to a salicylamide.

What is the CAS number of Nitazoxanide?

The CAS registry number of Nitazoxanide is 55981-09-4.

What is the molecular formula and weight of Nitazoxanide?

The molecular formula of Nitazoxanide is C12H9N3O5S and its molar mass is 307.29 g/mol.

What is Nitazoxanide used for?

Use classes: Animal Drugs.

Is Nitazoxanide hazardous?

Nitazoxanide carries the GHS signal word "Warning". Main hazards: harmful if swallowed, causes skin irritation, causes serious eye irritation. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Nitazoxanide?

Nitazoxanide is usually classified under HS code 293410 (Compounds containing an unfused thiazole ring (whether or not hydrogenated) in the…). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Nitazoxanide?

CompoundList lists 137 suppliers of Nitazoxanide in United States, China, India, Bangladesh and 17 more. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

Where can I buy Nitazoxanide in India?

27 suppliers in India list Nitazoxanide on CompoundList. Filter the suppliers list by country and send a request to compare prices, grades and delivery times.

What is the price of Nitazoxanide?

Suppliers quote Nitazoxanide 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 Nitazoxanide

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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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