Skip to Content
MilliporeSigma
All Photos(2)

Documents

291331

Sigma-Aldrich

1,1′-Diethyl-4,4′-cyanine iodide

Sign Into View Organizational & Contract Pricing
All Photos(2)

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

Quality Level

100

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

Related Categories

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)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

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

Visit the Document Library

Customers Also Viewed

Slide 1 of 1

1 of 1

1,6-Diphenyl-1,3,5-hexatriene 98%

Sigma-Aldrich

D208000

1,6-Diphenyl-1,3,5-hexatriene

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