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Sigma-Aldrich

Direct Red 23

Dye content 30 %

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About This Item

Empirical Formula (Hill Notation):
C35H25N7Na2O10S2
CAS Number:
3441-14-3
Molecular Weight:
813.72
Colour Index Number:
29160
EC Number:
222-348-4
MDL number:
MFCD00003946
UNSPSC Code:
12171500
PubChem Substance ID:
24852734
NACRES:
NA.47

form

powder

composition

Dye content, 30%

λmax

507 nm

ε (extinction coefficient)

≥15000 at 500-516 nm in water at 0.04 g/L

application(s)

diagnostic assay manufacturing
hematology
histology

storage temp.

room temp

SMILES string

[Na+].[Na+].CC(=O)Nc1ccc(cc1)N=Nc2cc3c(O)cc(NC(=O)Nc4ccc5c(O)c(N=Nc6ccccc6)c(cc5c4)S([O-])(=O)=O)cc3cc2S([O-])(=O)=O

InChI

1S/C35H27N7O10S2.2Na/c1-19(43)36-22-7-9-24(10-8-22)40-42-32-30(54(50,51)52)18-21-16-26(12-14-28(21)34(32)45)38-35(46)37-25-11-13-27-20(15-25)17-29(53(47,48)49)31(33(27)44)41-39-23-5-3-2-4-6-23;;/h2-18,44-45H,1H3,(H,36,43)(H2,37,38,46)(H,47,48,49)(H,50,51,52);;/q;2*+1/p-2

InChI key

NLMHXPDMNXMQBY-UHFFFAOYSA-L

Related Categories

General description

Direct Red 23 consists of a diazo group and it is toxic and carcinogenic in nature.

Application

Direct Red 23 has been used to stain water-hydrated seeds.

Storage Class Code

11 - Combustible Solids

WGK

WGK 2

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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Removal of Direct Red 23 from aqueous solution using corn stalks: Isotherms, kinetics and thermodynamic studies
Fathi MR
Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy, 364-372 (2015)
Extensive Natural Variation in Arabidopsis Seed Mucilage Structure
Voiniciuc C
Frontiers in Plant Science, 7 (2016)
Dongbo Shi et al.
Development (Cambridge, England), 146(1) (2019-01-11)
A reduced rate of stem cell division is considered a widespread feature which ensures the integrity of genetic information during somatic development of plants and animals. Radial growth of plant shoots and roots is a stem cell-driven process that is
Pavel Veselý et al.
Annals of botany, 126(2), 323-330 (2020-06-01)
The idea that genome (size) evolution in eukaryotes could be driven by environmental factors is still vigorously debated. In extant plants, genome size correlates positively with stomatal size, leading to the idea that conditions enabling the existence of large stomata
Julien Moukhtar et al.
PLoS computational biology, 15(2), e1006771-e1006771 (2019-02-12)
Plant tissue architecture and organ morphogenesis rely on the proper orientation of cell divisions. Previous attempts to predict division planes from cell geometry in plants mostly focused on 2D symmetric divisions. Using the stereotyped division patterns of Arabidopsis thaliana early
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