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Sigma-Aldrich

1,1′-Diethyl-4,4′-cyanine iodide

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About This Item

Empirical Formula (Hill Notation):
C23H23IN2
CAS Number:
4727-49-5
Molecular Weight:
454.35
EC Number:
225-223-2
MDL number:
MFCD00151338
UNSPSC Code:
12171500
PubChem Substance ID:
24857527
NACRES:
NA.47

form

powder or crystals

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
GHS06

signalword

Danger

Hazard Classifications

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

Storage Class

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

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Faceshields, Gloves, type P2 (EN 143) respirator cartridges

Certificates of Analysis (COA)

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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)

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