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201723

Sigma-Aldrich

Plasmocorinth B

Dye content 60 %

Synonym(s):

3-(5-Chloro-2-hydroxyphenylazo)-4,5-dihydroxynaphthalene-2,7-disulfonic acid disodium salt, Calcium fast purple, Michrome No. 452, Mordant Blue 13

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About This Item

Empirical Formula (Hill Notation):
C16H9ClN2Na2O9S2
CAS Number:
1058-92-0
Molecular Weight:
518.81
Colour Index Number:
16680
EC Number:
213-894-4
MDL number:
MFCD00003941
UNSPSC Code:
12171500
PubChem Substance ID:
24852021
NACRES:
NA.47

form

powder

Quality Level

100

composition

Dye content, 60%

λmax

527 nm

application(s)

diagnostic assay manufacturing
hematology
histology

storage temp.

room temp

SMILES string

[Na+].[Na+].Oc1ccc(Cl)cc1\N=N\c2c(O)c3c(O)cc(cc3cc2S([O-])(=O)=O)S([O-])(=O)=O

InChI

1S/C16H11ClN2O9S2.2Na/c17-8-1-2-11(20)10(5-8)18-19-15-13(30(26,27)28)4-7-3-9(29(23,24)25)6-12(21)14(7)16(15)22;;/h1-6,20-22H,(H,23,24,25)(H,26,27,28);;/q;2*+1/p-2/b19-18+;;

InChI key

LNXMADNIUWFTPP-BUFQOAPZSA-L

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Legal Information

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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Certificates of Analysis (COA)

Lot/Batch Number
SHBM6096
MKCB9593
MKBR3021V
MKBN4721V
MKBJ7740V

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B Rydqvist et al.
Acta physiologica Scandinavica, 127(4), 499-506 (1986-08-01)
Intracellular free Mg2+ (Mgf) in darkness and during illumination was measured in the Balanus photoreceptor using the Mg2+ sensitive dye Eriochrome Blue SE (EB). The EB was pressure injected in the cell and Mgf determined from measurements of absorption changes
E Heinonen et al.
Biochimica et biophysica acta, 898(3), 331-337 (1987-04-23)
The free Mg2+ concentration within synaptosomes has been measured with an entrapped Mg2+ indicator, eriochrome blue. Ionophores gramicidin and A23187 slowly increased the absorbance of the entrapped dye. Calibration of the dye response in a Na+-based medium gave a value
Measurement of ionized magnesium in biological fluids.
E Casillas et al.
Analytical biochemistry, 116(2), 319-324 (1981-09-15)
A Scarpa et al.
Federation proceedings, 40(12), 2646-2652 (1981-10-01)
A nondestructive technique is described for measuring intracellular free Mg2+ concentrations. It is based on the microinjection of a Mg2+ metallochromic indicator in the cytosol of a large single cell and measuring its differential absorbance changes with sensitive multiple wavelength
E Heinonen et al.
Neuroscience letters, 72(1), 105-110 (1986-12-03)
Cytoplasmic, free Mg2+ was measured spectrophotometrically using an intrasynaptosomally entrapped Mg2+-indicator, Eriochrome blue (EB). Addition of the ionophore A23187 or disruption of the synaptosomal plasma membrane with digitonin caused an increase in absorbance of entrapped EB with a maximum at
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