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Screening compounds

Tcab

Also known as 3,3',4,4'-Tetrachloroazobenzene, Bis(3,4-dichlorophenyl)diazene, 3,4,3',4'-Tetrachloroazobenzene

CAS 14047-09-7Formula C12H6Cl4N2Molar mass 320.01 g/molEC 690-538-8
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Tcab chemical structure, C12H6Cl4N2, CAS 14047-09-7
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
14047-09-7
Formula
C12H6Cl4N2
Appearance
Bright orange, crystalline solid
Melting point
158 °C
HS code
292700
Category
Screening compounds
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Typical packagingIllustrative packaging image, not the actual product

What is Tcab?

Plain description, key identifiers and synonyms

Tcab is a chemical substance with the molecular formula C12H6Cl4N2 and a molar mass of 320.01 g/mol. Its CAS registry number is 14047-09-7. The IUPAC name is bis(3,4-dichlorophenyl)diazene.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
bis(3,4-dichlorophenyl)diazene
CAS number
14047-09-7 CAS number cross-checkedOther or deprecated CAS: 64275-11-2, 64275-12-3
EC number
690-538-8
Molecular formula
C12H6Cl4N2
UNII
PGG7W94GS9
MDL number
MFCD00143021
InChIKey
SOBGIMQKWDUEPY-UHFFFAOYSA-N
InChI
InChI=1S/C12H6Cl4N2/c13-9-3-1-7(5-11(9)15)17-18-8-2-4-10(14)12(16)6-8/h1-6H
SMILES (canonical and isomeric)
C1=CC(=C(C=C1N=NC2=CC(=C(C=C2)Cl)Cl)Cl)Cl

Synonyms

  • 3,3',4,4'-Tetrachloroazobenzene
  • Bis(3,4-dichlorophenyl)diazene
  • 3,4,3',4'-Tetrachloroazobenzene
  • Diazene, 1,2-bis(3,4-dichlorophenyl)-
  • Diazene, bis(3,4-dichlorophenyl)-
  • 1,2-Bis(3,4-dichlorophenyl)diazene
  • Azobenzene, 3,3',4,4'-tetrachloro-
  • Diazene, bis(3,4-dichlorophenyl)-, (Z)-
  • Bis(3,4-dichlorophenyl)-Diazene
  • (E)-bis(3,4-dichlorophenyl)diazene
  • 3,3',4,4'-Tetrachloro-Azobenzene
  • Bis(3,4-dichlorophenyl)diazene, 9CI
  • Bis(3,4-dichlorophenyl)-(Z)-Diazene
  • (E)-1,2-Bis(3,4-dichlorophenyl)diazene
  • Diazene, bis(3,4-dichlorophenyl)- (9CI)
  • (E)-1,2-Bis(3,4-dichlorophenyl)diazene #
  • Tetrachloroazobenzene, 3,3',4,4'-
  • 3,4,3',4'-tetrachloroazobenzene, (Z)-isomer
  • 3,3',4,4'-Tetrachloroazobenzene 100 |Ig/mL in Acetonitrile
  • 3,3',4,4'-Tetrachloroazobenzene 100 microg/mL in Acetonitrile

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

Appearance
Bright orange, crystalline solidexp.
Melting point
158 °Cexp.

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
320.01 g/molcalc.
Exact mass
317.9285 Dacalc.
LogP (octanol/water)
6.72calc.
Topological polar surface area
24.72 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
2calc.
Rotatable bonds
2calc.
Heavy atoms
18calc.
Rings
2calc.
Aromatic rings
2calc.
Fraction sp3 carbons
0calc.
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, c1ccc(N=Nc2ccccc2)cc1

c1ccc(N=Nc2ccccc2)cc1

2 rings, 14 atoms, the Azobenzene ring system.

3,419 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.

Tcab suppliers

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

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  • Epichem
    Unclaimed profile
    TcabGrade, purity and minimum order on request
    Price on request
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Where suppliers are based

1 supplier in 0 countries

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Tcab price

Indicative price range per kg from live supplier offers

No published prices right now

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Uses and applications

What the substance is used for, by industry and function

How it is made

3,3',4,4'-Tetrachloroazobenzene (TCAB) is not commercially manufactured but is formed as an unwanted by-product in the manufacture of 3,4-dichloroaniline and its herbicidal derivatives Propanil, Linuron, and Diuron.

Regulatory status

Inventories, regulations and trade controls that list this substance

No regulatory list memberships are recorded for this substance yet. Always check the rules of the importing and exporting country before trade.

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code Tcab is traded under.

HS 2927.00Indicative HS code

Diazo-, azo- or azoxy compounds

World exports in 2024
$571M
+6.1% vs 2023, imports $525M
2019 to 2024
Top exporters
  1. China47.0%
  2. Indonesia13.1%
  3. Japan9.3%
Top importers
  1. United States10.2%
  2. India * partner reported9.1%
  3. South Korea9.1%

* Partner reported figures, a lower bound.

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

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

Frequently asked questions

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

What is Tcab?

Tcab is a chemical substance with the molecular formula C12H6Cl4N2 and a molar mass of 320.01 g/mol. Its CAS registry number is 14047-09-7. The IUPAC name is bis(3,4-dichlorophenyl)diazene.

What is the CAS number of Tcab?

The CAS registry number of Tcab is 14047-09-7. Other or deprecated CAS numbers: 64275-11-2, 64275-12-3.

What is the molecular formula and weight of Tcab?

The molecular formula of Tcab is C12H6Cl4N2 and its molar mass is 320.01 g/mol.

What is Tcab used for?

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

Is Tcab hazardous?

No GHS hazard classification for Tcab 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 Tcab?

Tcab is usually classified under HS code 292700 (Diazo-, azo- or azoxy-compounds). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Tcab?

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

What is the price of Tcab?

Suppliers quote Tcab 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 Tcab

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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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