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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

Signal Word

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 Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

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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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
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
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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