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Aromatic building blocks

Pcb 189

Also known as 2,3,3',4,4',5,5'-Heptachlorobiphenyl, 2,3,3',4,4',5,5'-Heptachloro-1,1'-biphenyl, 2,3,4,5,3',4',5'-Heptachlorobiphenyl

CAS 39635-31-9Formula C12H3Cl7Molar mass 395.33 g/molEC 690-157-7
GHS signal word: Warning. Pictograms: Serious health hazard, Hazardous to the environment
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Pcb 189 chemical structure, C12H3Cl7, CAS 39635-31-9
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
39635-31-9
Formula
C12H3Cl7
Molar mass
395.33 g/mol
EC number
690-157-7
HS code
290399
Category
Aromatic building blocks

What is Pcb 189?

Plain description, key identifiers and synonyms

2,3,3',4,4',5,5'-Heptachlorobiphenyl is a tetrachlorobenzene, a trichlorobenzene and a heptachlorobiphenyl.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
1,2,3,4-tetrachloro-5-(3,4,5-trichlorophenyl)benzene
CAS number
39635-31-9 CAS number cross-checked
EC number
690-157-7
Molecular formula
C12H3Cl7
UNII
BN8554XK23
InChIKey
XUAWBXBYHDRROL-UHFFFAOYSA-N
InChI
InChI=1S/C12H3Cl7/c13-6-1-4(2-7(14)10(6)17)5-3-8(15)11(18)12(19)9(5)16/h1-3H
SMILES (canonical and isomeric)
C1=C(C=C(C(=C1Cl)Cl)Cl)C2=CC(=C(C(=C2Cl)Cl)Cl)Cl

Synonyms

  • 2,3,3',4,4',5,5'-Heptachlorobiphenyl
  • 2,3,3',4,4',5,5'-Heptachloro-1,1'-biphenyl
  • 2,3,4,5,3',4',5'-Heptachlorobiphenyl
  • 1,2,3,4-tetrachloro-5-(3,4,5-trichlorophenyl)benzene
  • PCB No. 189
  • 1,1'-Biphenyl, 2,3,3',4,4',5,5'-heptachloro-
  • PCB No. 189 10 |Ig/mL in Isooctane
  • PCB No. 189 10 microg/mL in Isooctane
  • PCB No. 189 100 |Ig/mL in Isooctane
  • PCB No. 189 100 microg/mL in Isooctane
  • 2,3,3',4,4',5,5'-Heptachloro-1,1'-biphenyl #
  • 2,3,3',4,4',5,5'-Heptachlorobiphenyl Solution in Hexane, 100ug/mL, 2,3,3',4,4',5,5'-HEPTACHLOROBIPHENYL, PCB 189

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
395.33 g/molcalc.
Exact mass
391.8054 Dacalc.
LogP (octanol/water)
7.93calc.
Topological polar surface area
0 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
0calc.
Rotatable bonds
1calc.
Heavy atoms
19calc.
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

GHS signal word
Warning
GHS08: Serious health hazard
Serious health hazard
GHS09: Hazardous to the environment
Hazardous to the environment

Hazard statements

  • H373May cause damage to organs through prolonged or repeated exposure.
  • H400Very toxic to aquatic life.
  • H410Very toxic to aquatic life with long lasting effects.
Precautionary statements (5)
  • P260Do not breathe dust, fume, gas, mist, vapours or spray.
  • P273Avoid release to the environment.
  • P319Get medical help if you feel unwell.
  • P391Collect spillage.
  • 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

Pcb 189 suppliers

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Pcb 189 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 189 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 189 is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about Pcb 189, based on the data on this page

What is Pcb 189?

2,3,3',4,4',5,5'-Heptachlorobiphenyl is a tetrachlorobenzene, a trichlorobenzene and a heptachlorobiphenyl.

What is the CAS number of Pcb 189?

The CAS registry number of Pcb 189 is 39635-31-9.

What is the molecular formula and weight of Pcb 189?

The molecular formula of Pcb 189 is C12H3Cl7 and its molar mass is 395.33 g/mol.

What is Pcb 189 used for?

Known uses and roles of Pcb 189 include building blocks in research and laboratory.

Is Pcb 189 hazardous?

Pcb 189 carries the GHS signal word "Warning". Main hazards: may cause damage to organs through prolonged or repeated exposure, very toxic to aquatic life, very toxic to aquatic life with long lasting effects. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Pcb 189?

Pcb 189 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 189?

Post a free request on CompoundList and suppliers of Pcb 189 will send you quotes. Your contact details stay private until you accept a quote.

What is the price of Pcb 189?

Suppliers quote Pcb 189 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 189

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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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