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26049

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Chlorophosphonazo III

for spectrophotometric det. of alkaline earth metals

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Synonym(s):
Bis(4-chloro-2-phosphonobenzolazo)chromotropic acid
Empirical Formula (Hill Notation):
C22H16Cl2N4O14P2S2
CAS Number:
Molecular Weight:
757.36
Beilstein/REAXYS Number:
2934871
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.21

form

powder

Quality Level

quality

for spectrophotometric det. of alkaline earth metals

technique(s)

UV/Vis spectroscopy: suitable

SMILES string

Oc1c(\N=N\c2ccc(Cl)cc2P(O)(O)=O)c(cc3cc(c(\N=N\c4ccc(Cl)cc4P(O)(O)=O)c(O)c13)S(O)(=O)=O)S(O)(=O)=O

InChI

1S/C22H16Cl2N4O14P2S2/c23-10-1-3-12(14(7-10)43(31,32)33)25-27-19-16(45(37,38)39)5-9-6-17(46(40,41)42)20(22(30)18(9)21(19)29)28-26-13-4-2-11(24)8-15(13)44(34,35)36/h1-8,29-30H,(H2,31,32,33)(H2,34,35,36)(H,37,38,39)(H,40,41,42)/b27-25+,28-26+

InChI key

LMBABJNSZGKTBA-NBHCHVEOSA-N

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405329S4131A1010
vibrant-m

26049

Chlorophosphonazo III

vibrant-m

S4131

Sudan III

vibrant-m

A1010

Arsenic(III) oxide

quality

for spectrophotometric det. of alkaline earth metals

quality

-

quality

-

quality

-

technique(s)

UV/Vis spectroscopy: suitable

technique(s)

-

technique(s)

-

technique(s)

-

Quality Level

100

Quality Level

200

Quality Level

200

Quality Level

200

General description

Chlorophosphonazo III is a highly sensitive reagent and can be used for the spectrophotometric determination of zirconium, titanium, thorium and scandium. It also finds application as an extractant, along with 1-butanol as solvent, for determination of micromolar concentrations of Nd(III), Th(IV) and U(VI) in brine. Above all that, it has two long wavelength maxima, one at 620 nm and one at 680 nm.

Application

Chlorophosphonazo III was used as a chromogenic agent along with PVC, during the determination of calcium via a disposable optical sensor.

Packaging

Bottomless glass bottle. Contents are inside inserted fused cone.

Other Notes

Reagent for the spectrophotometric determination of alkaline earth metals

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)


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Extraction and spectrophotometric determination of Nd (III), Th (IV) and U (VI) in synthetic brine using Chlorophosphonazo III.
Chen JF
Analytica Chimica Acta, 284 (3), 593-597 (1994)
S M Baylor et al.
The Journal of physiology, 331, 139-177 (1982-10-01)
1. Changes in transmission of quasi-monochromatic light were measured in singly dissected, dye-injected twitch fibres following a single propagated action potential. The records, after correction for the intrinsic transmission signal, indicate changes in dye-related absorbance, DeltaA. This paper describes the
Simultaneous Spectrophotometric Determination of Calcium and Magnesium with Chlorophosphonazo III.
Ferguson JW.
Analytical Chemistry, 36 (4), 796-799 (1964)
P Wohlfart et al.
Biochimica et biophysica acta, 1022(3), 283-290 (1990-03-01)
We have characterised the spectroscopic properties of the metallochromic dye dichlorophosphonazo III and describe its use for the determination of changes of Mg2+ concentration in the micromolar range. Using a previously described reconstitution procedure, we incorporated the cGMP-gated channel from
Wei-Wen Liu et al.
Biomedical optics express, 12(2), 1154-1166 (2021-03-09)
This study demonstrates that chlorophosphonazo III (CPZ III) can be used as a contrast agent for photoacoustic calcium imaging. CPZ III can pass across the plasma membrane for labeling intracellular Ca2+ without cytotoxicity. In optical-resolution photoacoustic microscopy (OR-PAM), the photoacoustic

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