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4,4'-diiodo-2,2'-dimethyl-1,1'-biphenyl

Also known as: 2,2'-dimethyl-4,4'-diiodobiphenyl, 2,2'-dimethyl-4,4'-diiodo-1,1'-biphenyl, 4,4'-diiodo-2,2'-dimethylbiphenyl, 4-iodo-1-(4-iodo-2-methylphenyl)-2-methylbenzene, 1,1'-biphenyl, 4,4'-diiodo-2,2'-dimethyl-

4,4'-diiodo-2,2'-dimethyl-1,1'-biphenyl (CAS 69571-02-4) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C14H12I2 and a molecular weight of 434.05400 g/mol. Key properties include a boiling point of 374.8ºC at 760 mmHg, a density of 1.875 and a flash point of 175.5ºC. It is classified under GHS with signal word Danger and hazard statements H318 — Causes serious eye damage and H410 — Very toxic to aquatic life with long lasting effects. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
69571-02-4
Jingsj CID
J-1466659-2
Molecular Formula
C14H12I2
Molecular Weight
434.05400 g/mol
Category
Aromatic Hydrocarbons
Last updated
8/21/2026
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Physicochemical Properties

Boiling Point374.8ºC at 760 mmHg
Density1.875
Flash Point175.5ºC
Exact Mass433.90300
LogP5.17960
Refractive Index1.668

GHS Safety & Compliance

Corrosion / Environmental HazardSignal word: Danger
  • H318 — Causes serious eye damage
  • H410 — Very toxic to aquatic life with long lasting effects

Frequently Asked Questions

What is the CAS number of 4,4'-diiodo-2,2'-dimethyl-1,1'-biphenyl?

The CAS number of 4,4'-diiodo-2,2'-dimethyl-1,1'-biphenyl is 69571-02-4.

What are the molecular formula and molecular weight of 4,4'-diiodo-2,2'-dimethyl-1,1'-biphenyl?

4,4'-diiodo-2,2'-dimethyl-1,1'-biphenyl has molecular formula C14H12I2 and molecular weight 434.05400 g/mol.

Is 4,4'-diiodo-2,2'-dimethyl-1,1'-biphenyl hazardous?

4,4'-diiodo-2,2'-dimethyl-1,1'-biphenyl has GHS signal word Danger and hazard statements H318 — Causes serious eye damage; H410 — Very toxic to aquatic life with long lasting effects.

What are the upstream and downstream products of 4,4'-diiodo-2,2'-dimethyl-1,1'-biphenyl?

For 4,4'-diiodo-2,2'-dimethyl-1,1'-biphenyl, Upstream Products: 2,2'-Dimethyl-1,1'-biphenyl-4,4'-diamine dihydrochloride, 2,2'-Dimethylbenzidine; Downstream Products: 1,1'-(2,2'-Dimethyl-[1,1'-biphenyl]-4,4'-diyl)bis(3,6-dimethyl-9H-carbazole).

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

Last updated:

How to cite: Jingsj. "4,4'-diiodo-2,2'-dimethyl-1,1'-biphenyl (CAS 69571-02-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1466659-2 (accessed 2026-11-09).

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