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Aromatic building blocks

Halazone

Also known as Halazon, 4-(Dichlorosulfamoyl)benzoic Acid, Pantocide

CAS 80-13-7Formula C7H5Cl2NO4SMolar mass 270.09 g/molEC 201-253-1
GHS signal word: Warning. Pictograms: Harmful or irritant 1 supplier listed
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Halazone chemical structure, C7H5Cl2NO4S, CAS 80-13-7
2D chemical structure

Key facts

What buyers check first

All properties
Physical form
Powder
Melting point
212.8 °C
Solubility
Less than 1 mg/mL at 70 °F
HS code
293590
Category
Aromatic building blocks
UN number
UN 1479
Illustrative photo, assorted laboratory chemical bottles and jars on a laboratory bench
Typical packagingIllustrative packaging image, not the actual product

What is Halazone?

Plain description, key identifiers and synonyms

Halazone is a fine white powder with an odor of chlorine. (NTP, 1992)

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
4-(dichlorosulfamoyl)benzoic acid
CAS number
80-13-7 CAS number cross-checked
EC number
201-253-1
Molecular formula
C7H5Cl2NO4S
UNII
G359OL82VB
MDL number
MFCD00045858
InChIKey
XPDVQPODLRGWPL-UHFFFAOYSA-N
InChI
InChI=1S/C7H5Cl2NO4S/c8-10(9)15(13,14)6-3-1-5(2-4-6)7(11)12/h1-4H,(H,11,12)
SMILES (canonical and isomeric)
C1=CC(=CC=C1C(=O)O)S(=O)(=O)N(Cl)Cl

Synonyms

  • Halazon
  • 4-(Dichlorosulfamoyl)benzoic Acid
  • Pantocide
  • Cloritines
  • Pantosid
  • Pantotsid
  • Pentocid
  • Zeptabs
  • Halazono
  • Halazonum
  • p-(Dichlorosulfamoyl)benzoic acid
  • p-Sulfondichloramidobenzoic acid
  • p-Carboxybenzenesulfondichloroamide
  • Parasulfondichloramido benzoic acid
  • p-(N,N-Dichlorosulfamyl)benzoic acid
  • p-(N,N-Dichlorosulfamoyl)benzoic acid
  • Benzoic acid, p-(dichlorosulfamoyl)-
  • Halazona
  • Benzoic acid, 4-((dichloroamino)sulfonyl)-
  • Benzoic acid, 4-[(dichloroamino)sulfonyl]-
  • 4-((dichloroamino)sulfonyl)benzoic acid
  • Pantocid
  • 4-(N,N-Dichlorosulfamoyl)benzoic acid
  • Kyselina p-N,N-dichlorsulfamoylbenzoova
  • p-Dichlorosulfamoylbenzoic acid
Show all 29 synonyms
  • p-Sulfondichloramidobenzoic acid, Pentocid, Zeptabs, NSC 60717, Pantocid
  • Halazone (USP/INN)
  • 2-11-00-00220 (Beilstein Handbook Reference)
  • DivK1c_000683

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

Physical form
Powderexp.
Melting point
212.8 °Cexp.
Solubility
Less than 1 mg/mL at 70 °Fexp.

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
270.09 g/molcalc.
Exact mass
268.9316 Dacalc.
LogP (octanol/water)
1.68calc.
Topological polar surface area
74.68 Ųcalc.
Hydrogen bond donors
1calc.
Hydrogen bond acceptors
3calc.
Rotatable bonds
3calc.
Heavy atoms
15calc.
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.
Precautionary statements (9)
  • P264Wash skin thoroughly after handling.
  • P264 + P265Wash skin thoroughly after handling. Do not touch eyes.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P302 + P352If on skin: Wash with plenty of water.
  • P305 + P351 + P338If in eyes: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
  • 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.
UN number
UN 1479

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

Halazone suppliers

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Where suppliers are based

1 supplier in 1 country

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Halazone 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

United States

  • TSCA inventory (USA)
    Status: Inactive 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 Halazone is traded under.

HS 2935.90Indicative HS code

Sulphonamides, other

World exports in 2024
$5.64B
−11.0% vs 2023, imports $8.56B
2019 to 2024
Top exporters
  1. Ireland43.1%
  2. China12.0%
  3. India * partner reported9.5%
Top importers
  1. United States23.6%
  2. Slovenia19.1%
  3. Spain11.7%

* Partner reported figures, a lower bound.

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

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

Frequently asked questions

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

What is Halazone?

Halazone is a fine white powder with an odor of chlorine. (NTP, 1992)

What is the CAS number of Halazone?

The CAS registry number of Halazone is 80-13-7.

What is the molecular formula and weight of Halazone?

The molecular formula of Halazone is C7H5Cl2NO4S and its molar mass is 270.09 g/mol.

What is Halazone used for?

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

Is Halazone hazardous?

Halazone carries the GHS signal word "Warning". Main hazards: 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 Halazone?

Halazone is usually classified under HS code 293590 (Sulphonamides, other). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Halazone?

CompoundList lists 1 supplier of Halazone in India. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

Where can I buy Halazone in India?

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

What is the price of Halazone?

Suppliers quote Halazone 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 Halazone

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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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