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1,1'-Diethyl-4,4'-dicarbocyanine iodide

Also known as: 1,1'-Diethyl-4,4'-quinodicarbocyanine iodide, 1-Ethyl-4-(5-(1-ethylquinolin-4(1H)-ylidene)penta-1,3-dien-1-yl)quinolin-1-ium iodide, 1,1'-Diethyl-4,4'-dicarbocyanine iodide Dye content 90%, 1,5-Bis(1-ethyl-4-quinolyl)pentamethinium iodide, Quinolinium, 1-ethyl-4-[5-(1-ethyl-4(1H)-quinolinylidene)-1,3-pentadien-1-yl]-, iodide (1:1)

1,1'-Diethyl-4,4'-dicarbocyanine iodide (CAS 18300-31-7) is a compound in the Organohalogen Compounds category listed in the Jingsj chemical database. It has the molecular formula C27H27IN2 and a molecular weight of 506.42100 g/mol. It is classified under GHS with signal word Danger and hazard statements H301 — Toxic if swallowed, H311 — Toxic in contact with skin and H315 — Causes skin irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
18300-31-7
Jingsj CID
J-23888-0
Molecular Formula
C27H27IN2
Molecular Weight
506.42100 g/mol
Category
Organohalogen Compounds
Last updated
8/21/2026
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Physicochemical Properties

Exact Mass506.12200
PSA8.81000
LogP2.45700

GHS Safety & Compliance

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

Frequently Asked Questions

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

The CAS number of 1,1'-Diethyl-4,4'-dicarbocyanine iodide is 18300-31-7.

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

1,1'-Diethyl-4,4'-dicarbocyanine iodide has molecular formula C27H27IN2 and molecular weight 506.42100 g/mol.

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

1,1'-Diethyl-4,4'-dicarbocyanine iodide has GHS signal word Danger and hazard statements H301 — Toxic if swallowed; H311 — Toxic in contact with skin; H315 — Causes skin irritation.

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'-dicarbocyanine iodide (CAS 18300-31-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-23888-0 (accessed 2026-11-09).

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