1,1′-Diethyl-2,4′-cyanine iodide
Also known as: Ethyl Red Iodide, 1-ethyl-2-[(1-ethyl-4(1H)-quinolinylidene)methyl]quinolinium iodide, Isocyanine iodide, SKL521, 1,1'-Diethyl-2,4'-cyanine iodide, Quinaldinium, 1-ethyl-α-(1-ethyl-4(1H)-quinolylidene)-, iodide, Quinolinium, 1-ethyl-2-[(1-ethyl-4(1H)-quinolinylidene)methyl]-, iodide
1,1′-Diethyl-2,4′-cyanine iodide (CAS 634-21-9) 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 158-160ºC(lit.). No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 634-21-9
- Jingsj CID
- J-39736-8
- Molecular Formula
- C23H23IN2
- Molecular Weight
- 454.34700 g/mol
- Category
- Organohalogen Compounds
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 158-160ºC(lit.) |
|---|---|
| Exact Mass | 454.09100 |
| PSA | 8.81000 |
| LogP | 1.23570 |
| Refractive Index | 1.653 |
Activity & Biological Data
| Additional Information | [1]. Xu T, et al. All-optical switching characteristics of ethyl red doped polymer film. Optical Materials, 2008, 30(9): 1349-1354. [2]. Bell S, et al. Ab initio and density functional study of the resonance Raman spectra of Methyl Red, Ethyl Red and their protonated derivatives. Journal of Raman spectroscopy, 1998, 29(6): 447-462. |
|---|
Frequently Asked Questions
What is the CAS number of 1,1′-Diethyl-2,4′-cyanine iodide?
The CAS number of 1,1′-Diethyl-2,4′-cyanine iodide is 634-21-9.
What are the molecular formula and molecular weight of 1,1′-Diethyl-2,4′-cyanine iodide?
1,1′-Diethyl-2,4′-cyanine iodide has molecular formula C23H23IN2 and molecular weight 454.34700 g/mol.
What are the upstream and downstream products of 1,1′-Diethyl-2,4′-cyanine iodide?
For 1,1′-Diethyl-2,4′-cyanine iodide, Upstream Products: 1-Ethyl-2-methylquinolinium iodide, 4-Chloroquinoline, Quinaldine.
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-2,4′-cyanine iodide (CAS 634-21-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-39736-8 (accessed 2026-11-07).
Data for reference only; verify product details with suppliers before purchase.