Skip to Content
Merck
All Photos(2)

Key Documents

291331

Sigma-Aldrich

1,1′-Diethyl-4,4′-cyanine iodide

Sign Into View Organizational & Contract Pricing


About This Item

Empirical Formula (Hill Notation):
C23H23IN2
CAS Number:
Molecular Weight:
454.35
EC Number:
MDL number:
UNSPSC Code:
12171500
PubChem Substance ID:
NACRES:
NA.47

form

powder or crystals

Quality Level

mp

280 °C (dec.) (lit.)

ε (extinction coefficient)

≥75000 at 588-596 nm in ethanol at 0.003 g/L

application(s)

diagnostic assay manufacturing
hematology
histology

storage temp.

room temp

SMILES string

[I-].CCN1C=CC(=Cc2cc[n+](CC)c3ccccc23)c4ccccc14

InChI

1S/C23H23N2.HI/c1-3-24-15-13-18(20-9-5-7-11-22(20)24)17-19-14-16-25(4-2)23-12-8-6-10-21(19)23;/h5-17H,3-4H2,1-2H3;1H/q+1;/p-1

InChI key

BFVPXROCOCTNOP-UHFFFAOYSA-M

General description

1,1′-Diethyl-4,4′-cyanine iodide is a well-known photographic sensitizing dye. It belongs to the class of quinocyanine dyes and exhibits red and blue shifted absorption bands on aggregation. It is also known as 1-ethyl-4-[(1-ethyl-4(1H)-quinolinylidene) methyl] quinolinium iodide.

Application

1,1′-diethyl-4,4′-cyanine dye (DEC) is suitable for use in silver halide photography.

Pictograms

Skull and crossbones

Signal Word

Danger

Hazard Classifications

Acute Tox. 3 Dermal - Acute Tox. 3 Inhalation - Acute Tox. 3 Oral - Eye Irrit. 2 - Skin Irrit. 2

Storage Class Code

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number

Don't see the Right Version?

If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

The structure of 1,1'-diethyl-2,2'-cyanine iodide, a photographic sensitizing dye
K. Nakatsu
Acta Crystallographica Section B, Structural Crystallography and Crystal Chemistry, 2181-2188 (1977)

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service