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260932

Sigma-Aldrich

IR-140

Dye content 95 %

Synonym(s):

5,5′-Dichloro-11-diphenylamino-3,3′-diethyl-10,12-ethylenethiatricarbocyanine perchlorate

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About This Item

Empirical Formula (Hill Notation):
C39H34Cl3N3O4S2
CAS Number:
53655-17-7
Molecular Weight:
779.19
EC Number:
258-689-0
MDL number:
MFCD00011957
UNSPSC Code:
12352103
PubChem Substance ID:
24855780
NACRES:
NA.23

form

powder

Quality Level

200

autoignition temp.

1075 °F

composition

Dye content, 95%

mp

250-252 °C (lit.)

λmax

823 nm

SMILES string

[O-]Cl(=O)(=O)=O.CCN1C(/Sc2ccc(Cl)cc12)=C\C=C3/CCC(\C=C\c4sc5ccc(Cl)cc5[n+]4CC)=C3N(c6ccccc6)c7ccccc7

InChI

1S/C39H34Cl2N3S2.ClHO4/c1-3-42-33-25-29(40)19-21-35(33)45-37(42)23-17-27-15-16-28(18-24-38-43(4-2)34-26-30(41)20-22-36(34)46-38)39(27)44(31-11-7-5-8-12-31)32-13-9-6-10-14-32;2-1(3,4)5/h5-14,17-26H,3-4,15-16H2,1-2H3;(H,2,3,4,5)/q+1;/p-1

InChI key

UVLDECUUBLLYRG-UHFFFAOYSA-M

Application

Suitable as laser dye

Packaging

Bottomless glass bottle. Contents are inside inserted fused cone.

pictograms

Exclamation mark
GHS07

signalword

Warning

Hazard Classifications

Acute Tox. 4 Dermal - Acute Tox. 4 Inhalation - Acute Tox. 4 Oral - Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

target_organs

Respiratory system

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves

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’.

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Ankun Yang et al.
Nature communications, 6, 6939-6939 (2015-04-22)
Plasmon lasers can support ultrasmall mode confinement and ultrafast dynamics with device feature sizes below the diffraction limit. However, most plasmon-based nanolasers rely on solid gain materials (inorganic semiconducting nanowire or organic dye in a solid matrix) that preclude the
Ken-Ichi Yamashita et al.
Chemistry (Weinheim an der Bergstrasse, Germany), 26(16), 3633-3640 (2019-12-28)
Facile redox-induced aromatic-antiaromatic interconversions were accomplished by using β-tetracyano-21,23-dithiaporphyrin (CN4 S2 Por). Introduced cyano groups not only increased the reduction potential of the porphyrin core but also stabilized the antiaromatic isophlorin (CN4 S2 Iph) by π conjugation. The reduction of
Yogita Silori et al.
The journal of physical chemistry. B, 124(31), 6825-6834 (2020-07-10)
Photophysical properties of tricarbocyanine dyes in various solvents have been widely investigated using a variety of spectroscopic tools. However, the presence of several ground-state isomers and interconversion between these isomers on an ultrafast timescale upon photoexcitation render unambiguous assignment of

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