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1,1'-Diethyl-4,4'-cyanine iodide

Also known as: 1,1'-DIETHYL-4,4'-CYANINE IODIDE, 1-ethyl-4-[(1-ethyl-4(1H)-quinolylidene)methyl]quinolinium iodide, EINECS 225-223-2, MFCD00151338

1,1'-Diethyl-4,4'-cyanine iodide (CAS 4727-49-5) is a compound in the Organohalogen Compounds category listed in the Jingsj chemical database. It has the molecular formula C23H23IN2 and a molecular weight of 454.34700 g/mol. Key property: a melting point of 280℃ (dec.)(lit.). It is classified under GHS with signal word Danger and hazard statements H301 — Toxic if swallowed, H311 — Toxic in contact with skin and H331 — Toxic if inhaled. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
4727-49-5
Jingsj CID
J-14974-6
Molecular Formula
C23H23IN2
Molecular Weight
454.34700 g/mol
Category
Organohalogen Compounds
Last updated
8/21/2026
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Physicochemical Properties

Melting Point280℃ (dec.)(lit.)
Exact Mass454.09100
PSA8.81000
LogP1.23570

GHS Safety & Compliance

Acute ToxicitySignal word: Danger
  • H301 — Toxic if swallowed
  • H311 — Toxic in contact with skin
  • H331 — Toxic if inhaled
  • H315 — Causes skin irritation
  • H319 — Causes serious eye irritation
  • H335 — May cause respiratory irritation

Frequently Asked Questions

What is the CAS number of 1,1'-Diethyl-4,4'-cyanine iodide?

The CAS number of 1,1'-Diethyl-4,4'-cyanine iodide is 4727-49-5.

What are the molecular formula and molecular weight of 1,1'-Diethyl-4,4'-cyanine iodide?

1,1'-Diethyl-4,4'-cyanine iodide has molecular formula C23H23IN2 and molecular weight 454.34700 g/mol.

Is 1,1'-Diethyl-4,4'-cyanine iodide hazardous?

1,1'-Diethyl-4,4'-cyanine iodide has GHS signal word Danger and hazard statements H301 — Toxic if swallowed; H311 — Toxic in contact with skin; H331 — Toxic if inhaled.

What are the upstream and downstream products of 1,1'-Diethyl-4,4'-cyanine iodide?

For 1,1'-Diethyl-4,4'-cyanine iodide, Upstream Products: 1-Ethyl-4-methylquinolinium iodide, Cryptocyanine.

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

Last updated:

How to cite: Jingsj. "1,1'-Diethyl-4,4'-cyanine iodide (CAS 4727-49-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-14974-6 (accessed 2026-11-09).

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