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Merck
CN

C204

Calmagite

metal indicator

Synonym(s):

1-(1-Hydroxy-4-methyl-2-phenylazo)-2-naphthol-4-sulfonic acid, 3-Hydroxy-4-(2-hydroxy-5-methylphenylazo)naphthalene-1-sulfonic acid

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About This Item

Linear Formula:
HOC10H5[N=NC6H3(OH)CH3]SO3H
CAS Number:
3147-14-6
Molecular Weight:
358.37
NACRES:
NA.83
PubChem Substance ID:
24892461
UNSPSC Code:
12352204
EC Number:
221-563-0
MDL number:
MFCD00011656
Beilstein/REAXYS Number:
708596

Key Documents

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Product Name

Calmagite, indicator grade

InChI key

VBRNLOQCBCPPHL-UHFFFAOYSA-N

InChI

1S/C17H14N2O5S/c1-10-6-7-14(20)13(8-10)18-19-17-12-5-3-2-4-11(12)16(9-15(17)21)25(22,23)24/h2-9,20-21H,1H3,(H,22,23,24)

SMILES string

Cc1ccc(O)c(c1)N=Nc2c(O)cc(c3ccccc23)S(O)(=O)=O

grade

indicator grade

form

powder and chunks

technique(s)

titration: suitable

mp

330 °C (lit.)

λmax

602 nm

Quality Level

200

Gene Information

human ... MPL(4352)

Related Categories

Application

Used as an indicator in the titration of calcium or magnesium with EDTA.
Used for the determination of magnesium in biological materials.

pictograms

Exclamation mark
GHS07

signalword

Warning

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

target_organs

Respiratory system

Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

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Certificates of Analysis (COA)

Lot/Batch Number
BCCN9012
BCCN3634
BCCM6984
BCCK2150
BCCJ1353

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Bahram Hemmateenejad et al.
Analytica chimica acta, 607(2), 142-152 (2008-01-15)
Annihilation of the contribution of one chemical component from the original data matrix is a general method in rank annihilation factor analysis (RAFA). However, RAFA is not applicable for studying the protonation equilibria of multiprotic acids. In this work, a
Laboratory Medicine, 12, 139-139 (1989)
Shirish Agarwal et al.
Chemosphere, 73(5), 837-843 (2008-08-05)
Electrochemical degradation (ECD) is a promising technology for in situ remediation of diversely contaminated environmental matrices by application of a low level electric potential gradient. This investigation, prompted by successful bench-scale ECD of trichloroethylene, involved development, parametric characterization and evaluation
Calmagite method for determination of serum magnesium modified.
S A Cohen et al.
Clinical chemistry, 26(6), 783-783 (1980-05-01)
Rapid measurement of serum magnesium with a kit.
P West
Clinical chemistry, 30(8), 1426-1427 (1984-08-01)
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