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Merck
CN

234087

Potassium indigotrisulfonate

ozone-scavenging reagent

Synonym(s):

5,5′,7-Indigotrisulfonic acid tripotassium salt, Indigo-5,5′,7-trisulfonic acid tripotassium salt, Potassium indigotrisulfonate, Tripotassium indigo-5,5′,7-trisulfonate, tri-Potassium indigo-5,5′,7-trisulfonate

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About This Item

Empirical Formula (Hill Notation):
C16H7K3N2O11S3
CAS Number:
67627-18-3
Molecular Weight:
616.72
UNSPSC Code:
12171500
NACRES:
NA.47
PubChem Substance ID:
24854018
MDL number:
MFCD00013160
Beilstein/REAXYS Number:
4932187

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InChI

1S/C16H10N2O11S3.3K/c19-15-8-3-6(30(21,22)23)1-2-10(8)17-13(15)14-16(20)9-4-7(31(24,25)26)5-11(12(9)18-14)32(27,28)29;;;/h1-5,17-18H,(H,21,22,23)(H,24,25,26)(H,27,28,29);;;/q;3*+1/p-3/b14-13+;;;

SMILES string

[K+].[K+].[K+].[O-]S(=O)(=O)c1ccc2NC(\C(=O)c2c1)=C3\Nc4c(cc(cc4S([O-])(=O)=O)S([O-])(=O)=O)C3=O

InChI key

XOSMXDUITYWYGR-VPOCKCTCSA-K

form

crystals or chunks

concentration

>60% (HPLC)

technique(s)

titration: suitable

solubility

water: 0.1%

λmax

600 nm

application(s)

diagnostic assay manufacturing
hematology
histology

storage temp.

room temp

Quality Level

100

Related Categories

Application

Ozone-scavenging reagent that reacts rapidly with ozone.
Potassium indigotrisulfonate has been used:
  • in colorimetric method of measurement of atmospheric ozone
  • for measuring residual aqueous ozone by gas diffusion flow injection analysis.
  • to determine O3 concentration in water.

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
SHBR4937
SHBQ9935
SHBP6019
MKCK0997
MKBV0887V

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Samira Nahim-Granados et al.
Water research, 170, 115304-115304 (2019-12-02)
In this research, the capability of ozonation and peroxone treatment for the simultaneous disinfection and decontamination of wash water from the fresh-cut industry has been investigated at pilot plant scale (10 L). The removal efficiency of six organic microcontaminants (OMCs) (four
Chlorophylls Reductions in Fresh-Cut Chard (Beta vulgaris var. cicla) with Various Sanitizing Agents
Karaca H
Journal of Agricultural Science, 22(2016), 9-19 (2014)
Colorimetric determination of ambient ozone using indigo blue droplet.
Felix, E.P. and Cardoso, A.A.
Journal of the Brazilian Chemical Society, 17, 296-301 (2006)
Ozone-scavenging reagents suitable for use in the quantitative determination of aldehydes as the O-(2,3,4,5,6-pentafluorobenzyl) oximes by GC-ECD
Urbansky, E.T., et al.
Water Research, 34, 2610-2613 (2000)
Jingxin Yang et al.
Water research, 176, 115751-115751 (2020-04-06)
Thiosulfate (S2O32-) is frequently used as an ozone (O3) quenching agent when investigating the ozonation of organic contaminants and the kinetics thereof. In this study, however, O3 is activated by S2O32-, resulting in a superfast degradation of O3-refractory contaminants. Therefore
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