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4'-Octyl[1,1'-biphenyl]-4-carbonitrile

Also known as: 4-Cyano-4'-octylbiphenyl, 4'-Octylbiphenyl-4-carbonitrile, 4-Octyl-4'-cyanobiphenyl, 8CB, K24, 4'-Octyl-4-biphenylcarbonitrile, 4'-Octyl[1,1'-biphenyl]-4-carbonitrile, 4-n-Octyl-4'-cyanobiphenyl, Octylcyanobiphenyl, 4-cyano-4'-n-octylbiphenyl

4'-Octyl[1,1'-biphenyl]-4-carbonitrile (CAS 52709-84-9) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C21H25N and a molecular weight of 291.430 g/mol. Key properties include a boiling point of 433.9±34.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 217.7±18.2 °C. It is classified under GHS with signal word Warning and hazard statements H312 — Harmful in contact with skin, H315 — Causes skin irritation and H319 — Causes serious eye irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
52709-84-9
Jingsj CID
J-38767-7
Molecular Formula
C21H25N
Molecular Weight
291.430 g/mol
Category
Aromatic Hydrocarbons
Last updated
8/21/2026
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Physicochemical Properties

Boiling Point433.9±34.0 °C at 760 mmHg
Density1.0±0.1 g/cm3
Flash Point217.7±18.2 °C
Exact Mass291.198700
PSA23.79000
LogP7.47
Vapor Pressure0.0±1.0 mmHg at 25°C
Refractive Index1.554

GHS Safety & Compliance

IrritantSignal word: Warning
  • H312 — Harmful in contact with skin
  • H315 — Causes skin irritation
  • H319 — Causes serious eye irritation
  • H332 — Harmful if inhaled
  • H335 — May cause respiratory irritation

Customs & Trade Information

HS Code2926909090
SummaryHS:2926909090 other nitrile-function compounds VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:30.0%

Frequently Asked Questions

What is the CAS number of 4'-Octyl[1,1'-biphenyl]-4-carbonitrile?

The CAS number of 4'-Octyl[1,1'-biphenyl]-4-carbonitrile is 52709-84-9.

What are the molecular formula and molecular weight of 4'-Octyl[1,1'-biphenyl]-4-carbonitrile?

4'-Octyl[1,1'-biphenyl]-4-carbonitrile has molecular formula C21H25N and molecular weight 291.430 g/mol.

Is 4'-Octyl[1,1'-biphenyl]-4-carbonitrile hazardous?

4'-Octyl[1,1'-biphenyl]-4-carbonitrile has GHS signal word Warning and hazard statements H312 — Harmful in contact with skin; H315 — Causes skin irritation; H319 — Causes serious eye irritation.

What are the upstream and downstream products of 4'-Octyl[1,1'-biphenyl]-4-carbonitrile?

For 4'-Octyl[1,1'-biphenyl]-4-carbonitrile, Upstream Products: Biphenyl, Octanoyl chloride, 1,4-Dibromobenzene; Downstream Products: 4'-octyl-[1,1'-biphenyl]-4-carboxylic acid.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "4'-Octyl[1,1'-biphenyl]-4-carbonitrile (CAS 52709-84-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-38767-7 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.