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Aromatic building blocks

Pcb 74

Also known as 2,4,4',5-Tetrachlorobiphenyl, 1,2,4-trichloro-5-(4-chlorophenyl)benzene, 2,4,4',5-Tetrachloro-1,1'-biphenyl

CAS 32690-93-0Formula C12H6Cl4Molar mass 291.99 g/molEC 690-149-3
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Pcb 74 chemical structure, C12H6Cl4, CAS 32690-93-0
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
32690-93-0
Formula
C12H6Cl4
Molar mass
291.99 g/mol
EC number
690-149-3
HS code
290399
Category
Aromatic building blocks

What is Pcb 74?

Plain description, key identifiers and synonyms

Pcb 74 is a chemical substance with the molecular formula C12H6Cl4 and a molar mass of 291.99 g/mol. Its CAS registry number is 32690-93-0. The IUPAC name is 1,2,4-trichloro-5-(4-chlorophenyl)benzene.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
1,2,4-trichloro-5-(4-chlorophenyl)benzene
CAS number
32690-93-0 CAS number cross-checked
EC number
690-149-3
Molecular formula
C12H6Cl4
UNII
W0250484DW
InChIKey
TULCXSBAPHCWCF-UHFFFAOYSA-N
InChI
InChI=1S/C12H6Cl4/c13-8-3-1-7(2-4-8)9-5-11(15)12(16)6-10(9)14/h1-6H
SMILES (canonical and isomeric)
C1=CC(=CC=C1C2=CC(=C(C=C2Cl)Cl)Cl)Cl

Synonyms

  • 2,4,4',5-Tetrachlorobiphenyl
  • 1,2,4-trichloro-5-(4-chlorophenyl)benzene
  • 2,4,4',5-Tetrachloro-1,1'-biphenyl
  • PCB74 cpd
  • 1,1'-Biphenyl, 2,4,4',5-tetrachloro
  • 1,1'-Biphenyl, 2,4,4',5-tetrachloro-
  • Pcb No. 74
  • Biphenyl, 2,4,4',5-tetrachloro-
  • PCB No. 74 10 |Ig/mL in Isooctane
  • PCB No. 74 10 microg/mL in Isooctane

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
291.99 g/molcalc.
Exact mass
289.9224 Dacalc.
LogP (octanol/water)
5.97calc.
Topological polar surface area
0 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
0calc.
Rotatable bonds
1calc.
Heavy atoms
16calc.
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(-c2ccccc2)cc1

c1ccc(-c2ccccc2)cc1

2 rings, 12 atoms, the Biphenyl ring system.

32,228 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.

Pcb 74 suppliers

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Pcb 74 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

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 Pcb 74 is traded under.

HS 2903.99Indicative HS code

Halogenated derivatives of aromatic hydrocarbons, other

World exports in 2024
$798M
−15.8% vs 2023, imports $786M
2019 to 2024
Top exporters
  1. China51.0%
  2. United States15.9%
  3. Belgium8.6%
Top importers
  1. India * partner reported16.1%
  2. United States14.7%
  3. Germany10.9%

* Partner reported figures, a lower bound.

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

The HS code shown for Pcb 74 is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about Pcb 74, based on the data on this page

What is Pcb 74?

Pcb 74 is a chemical substance with the molecular formula C12H6Cl4 and a molar mass of 291.99 g/mol. Its CAS registry number is 32690-93-0. The IUPAC name is 1,2,4-trichloro-5-(4-chlorophenyl)benzene.

What is the CAS number of Pcb 74?

The CAS registry number of Pcb 74 is 32690-93-0.

What is the molecular formula and weight of Pcb 74?

The molecular formula of Pcb 74 is C12H6Cl4 and its molar mass is 291.99 g/mol.

What is Pcb 74 used for?

Known uses and roles of Pcb 74 include building blocks in research and laboratory.

Is Pcb 74 hazardous?

No GHS hazard classification for Pcb 74 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 Pcb 74?

Pcb 74 is usually classified under HS code 290399 (Halogenated derivatives of aromatic hydrocarbons, other). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Pcb 74?

Post a free request on CompoundList and suppliers of Pcb 74 will send you quotes. Your contact details stay private until you accept a quote.

What is the price of Pcb 74?

Suppliers quote Pcb 74 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 Pcb 74

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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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