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Merck
CN

272442

Reichardt′s dye

Dye content 90 %

Synonym(s):

2,6-Diphenyl-4-(2,4,6-triphenyl-1-pyridinio)phenolate, 2,6-Diphenyl-4-(2,4,6-triphenylpyridinio)phenolate

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About This Item

Empirical Formula (Hill Notation):
C41H29NO
CAS Number:
10081-39-7
Molecular Weight:
551.68
UNSPSC Code:
12171500
NACRES:
NA.47
PubChem Substance ID:
24856472
MDL number:
MFCD00013355
Beilstein/REAXYS Number:
1444580

Key Documents

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InChI

1S/C41H29NO/c43-41-37(31-18-8-2-9-19-31)28-36(29-38(41)32-20-10-3-11-21-32)42-39(33-22-12-4-13-23-33)26-35(30-16-6-1-7-17-30)27-40(42)34-24-14-5-15-25-34/h1-29H

SMILES string

[O-]c1c(cc(cc1-c2ccccc2)-[n+]3c(cc(cc3-c4ccccc4)-c5ccccc5)-c6ccccc6)-c7ccccc7

InChI key

UWOVWIIOKHRNKU-UHFFFAOYSA-N

form

powder

composition

Dye content, 90%

technique(s)

titration: suitable

mp

271-275 °C (lit.)

λmax

306 nm, 551 nm (2nd)

application(s)

diagnostic assay manufacturing
hematology
histology

storage temp.

room temp

Quality Level

100

Related Categories

General description

Reichardt′s dye belongs to the class of azo merocyanine dyes. Reichardt′s dye, also known as ET(30) or pyridinium N-phenoxyde betaine dye is a highly solvatochromic betaine dye useful for determining solvent polarity effects. It plays an important role as a probe of solvent polarity in biological systems and on surfaces.

Application

Reichardt’s dye, a solvatochromic betaine dye has been used for the determination of solvent polarity.

Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

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Certificates of Analysis (COA)

Lot/Batch Number
SHBT4545
SHBS5368
SHBQ8359
SHBN2356
MKCL8021

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C. Reichardt
Pure and Applied Chemistry. Chimie Pure Et Appliquee, 80, 1415-1415 (2008)
Yu Chen et al.
Analytica chimica acta, 1034, 128-136 (2018-09-09)
In this work, a paper-based optoelectronic sensor (paper-nose) is presented for sensing volatile gases in air. The proposed optoelectronic sensor is a combination of both colorimetric (optical) and chemiresistive (electronic) sensor arrays in order to improve the selectivity of the
Beatrice Swensson et al.
Polymers, 12(6) (2020-06-12)
To further understand cellulose-solvent interactions in aqueous hydroxide solutions, cellulose behavior in aqueous solutions of NaOH combined with tetramethylammonium hydroxide (TMAH) or benzyltrimethylammonium hydroxide (Triton B), as well as urea, was investigated. The rheological properties of the solutions were assessed
C. Machado et al.
Journal of Chemical Education, 78, 649-649 (2001)
Chemical Reviews, 94, 2319-2319 (1994)
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