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Screening compounds

Zincon

Also known as 2-Carboxy-2'-hydroxy-5'-sulfoformazylbenzene, 2-(1-(2-Hydroxy-5-sulfophenyl)-3-phenyl-5-formazano)benzoic acid, Benzoic acid, 2-(1-(2-hydroxy-5-sulfophenyl)-3-phenyl-5-formazano)-

CAS 135-52-4Formula C20H16N4O6SMolar mass 440.44 g/molEC 205-197-9
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Zincon chemical structure, C20H16N4O6S, CAS 135-52-4
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
135-52-4
Formula
C20H16N4O6S
Molar mass
440.44 g/mol
EC number
205-197-9
HS code
292800
Category
Screening compounds

What is Zincon?

Plain description, key identifiers and synonyms

Zincon is a chemical substance with the molecular formula C20H16N4O6S and a molar mass of 440.44 g/mol. Its CAS registry number is 135-52-4. The IUPAC name is 2-[[(Z)-N-(2-hydroxy-5-sulfoanilino)-C-phenylcarbonimidoyl]diazenyl]benzoic acid.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
2-[[(Z)-N-(2-hydroxy-5-sulfoanilino)-C-phenylcarbonimidoyl]diazenyl]benzoic acid
CAS number
135-52-4Other or deprecated CAS: 59600-76-9
EC number
205-197-9
Molecular formula
C20H16N4O6S
UNII
721EU9HRUT
InChIKey
OWQUYBAASOSGNO-CDNKMLFNSA-N
InChI
InChI=1S/C20H16N4O6S/c25-18-11-10-14(31(28,29)30)12-17(18)22-24-19(13-6-2-1-3-7-13)23-21-16-9-5-4-8-15(16)20(26)27/h1-12,22,25H,(H,26,27)(H,28,29,30)/b23-21?,24-19-
Canonical SMILES
O=C(O)c1ccccc1N=NC(=NNc1cc(S(=O)(=O)O)ccc1O)c1ccccc1
Isomeric SMILES
C1=CC=C(C=C1)/C(=N/NC2=C(C=CC(=C2)S(=O)(=O)O)O)/N=NC3=CC=CC=C3C(=O)O

Synonyms

  • 2-Carboxy-2'-hydroxy-5'-sulfoformazylbenzene
  • 2-(1-(2-Hydroxy-5-sulfophenyl)-3-phenyl-5-formazano)benzoic acid
  • Benzoic acid, 2-(1-(2-hydroxy-5-sulfophenyl)-3-phenyl-5-formazano)-
  • 2-(2-(((2-Hydroxy-5-sulfophenyl)diazenyl)(phenyl)methylene)hydrazinyl)benzoic acid
  • Benzoic acid, 2-(2-((2-(2-hydroxy-5-sulfophenyl)diazenyl)phenylmethylene)hydrazinyl)-
  • 2-(1-(2-Hydroxy-5-sulphophenyl)-3-phenyl-5-formazano)benzoic acid
  • 2-{[alpha-(2-Hydroxy-5-sulfophenylazo)-benzyliden]-hydrazino}-benzoesaure
  • 2-((E)-((Z)-(2-(2-hydroxy-5-sulfophenyl)hydrazono)(phenyl)methyl)diazenyl)benzoic acid
  • Benzoic acid, o-((alpha-((2-hydroxy-5-sulfophenyl)azo)benzylidene)hydrazino)-
  • Benzoic acid, o-(1-(2-hydroxy-5-sulfophenyl)-3-phenyl-5-formazano)-
  • 2-[2-[(z)-N-[(e)-(6-oxo-3-sulfocyclohexa-2,4-dien-1-ylidene)amino]-c-phenylcarbonimidoyl]hydrazinyl] benzoic acid
  • 2-{(Z)-[(Z)-[2-(2-hydroxy-5-sulfophenyl)hydrazinylidene](phenyl)methyl]diazenyl}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
440.44 g/molcalc.
Exact mass
440.0791 Dacalc.
LogP (octanol/water)
3.89calc.
Topological polar surface area
161 Ųcalc.
Hydrogen bond donors
4calc.
Hydrogen bond acceptors
7calc.
Rotatable bonds
6calc.
Heavy atoms
31calc.
Rings
3calc.
Aromatic rings
3calc.
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, c1ccc(N=NC(=NNc2ccccc2)c2ccccc2)cc1

c1ccc(N=NC(=NNc2ccccc2)c2ccccc2)cc1

3 rings, 23 atoms, the Diazene, phenyl[phenyl(phenylhydrazono)methyl]- ring system.

90 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.

Zincon suppliers

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

All 7 suppliers
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Where suppliers are based

7 suppliers in 5 countries

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Zincon 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: 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 Zincon is traded under.

HS 2928.00Indicative HS code

Organic derivatives of hydrazine or of hydroxylamine

World exports in 2024
$1.38B
−9.0% vs 2023, imports $1.52B
2019 to 2024
Top exporters
  1. Switzerland * partner reported44.0%
  2. China18.4%
  3. Italy9.4%
Top importers
  1. Brazil21.8%
  2. United States12.8%
  3. Italy10.8%

* Partner reported figures, a lower bound.

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

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

Frequently asked questions

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

What is Zincon?

Zincon is a chemical substance with the molecular formula C20H16N4O6S and a molar mass of 440.44 g/mol. Its CAS registry number is 135-52-4. The IUPAC name is 2-[[(Z)-N-(2-hydroxy-5-sulfoanilino)-C-phenylcarbonimidoyl]diazenyl]benzoic acid.

What is the CAS number of Zincon?

The CAS registry number of Zincon is 135-52-4. Other or deprecated CAS numbers: 59600-76-9.

What is the molecular formula and weight of Zincon?

The molecular formula of Zincon is C20H16N4O6S and its molar mass is 440.44 g/mol.

What is Zincon used for?

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

Is Zincon hazardous?

No GHS hazard classification for Zincon 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 Zincon?

Zincon is usually classified under HS code 292800 (Organic derivatives of hydrazine or of hydroxylamine). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Zincon?

CompoundList lists 7 suppliers of Zincon in India, Germany, Oman, Pakistan and 1 more. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

Where can I buy Zincon in India?

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

What is the price of Zincon?

Suppliers quote Zincon on request because prices depend on grade, purity, quantity and destination. A free request on CompoundList gets you several quotes to compare.

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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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