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C204

Supelco

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
Beilstein:
708596
EC Number:
221-563-0
MDL number:
MFCD00011656
UNSPSC Code:
12352204
PubChem Substance ID:
24892461
NACRES:
NA.83

product name

Calmagite, indicator grade

grade

indicator grade

form

powder and chunks

technique(s)

titration: suitable

mp

330 °C (lit.)

λmax

602 nm

SMILES string

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

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)

InChI key

VBRNLOQCBCPPHL-UHFFFAOYSA-N

Gene Information

human ... MPL(4352)

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Related Categories

Application

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

Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Statements

H315,H319,H335

Hazard Classifications

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

Target Organs

Respiratory system

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificates of Analysis (COA)

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Avoiding serum matrix effect in calmagite compleximetric measurements of magnesium.
N J Frandsen et al.
Clinical chemistry, 33(5), 719-719 (1987-05-01)
Total Mg2+ measured in serum and urine in the Technicon RA 1000 random access analyzer by use of modified manual calmagite procedure.
E P Diamandis et al.
Clinical chemistry, 30(7), 1262-1262 (1984-07-01)
T Fujita et al.
Clinical chemistry, 41(9), 1302-1305 (1995-09-01)
We report a method for assaying magnesium in serum and urine involving only one enzyme, isocitrate dehydrogenase (NADP+)(EC 1.1.1.42), which requires magnesium ion for activity. The enzymatic reduction of NADP+ by isocitrate increases in rate linearly up to at least
Determination of magnesium in serum by the technicon SMAC with a calmagite method with blank correction.
S Brown et al.
Clinical chemistry, 36(11), 1990-1991 (1990-11-01)
Colorimetric measurement of serum magnesium with an IL micro centrifugal analyzer.
P Datta et al.
Clinica chimica acta; international journal of clinical chemistry, 151(1), 85-90 (1985-09-16)
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