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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
Pricing and availability is not currently available.

Product Name

Calmagite, indicator grade

grade

indicator grade

Quality Level

200

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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Application

Used as an indicator in the titration of calcium or magnesium with EDTA.
Used for the determination of magnesium in biological materials.[1]

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

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Certificates of Analysis (COA)

Lot/Batch Number
BCCM6984
BCCK2150
BCCJ1353
BCCF2333
BCCC9488

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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)
Tippu S Sheriff et al.
Dalton transactions (Cambridge, England : 2003), (44)(44), 5119-5122 (2007-11-07)
Hydrogen peroxide (H(2)O(2)) generated from the manganese(II) catalysed reduction of dioxygen has been shown to efficiently oxidize Calmagite (3-hydroxy-4-(2-hydroxy-5-methylphenylazo)naphthalene-1-sulfonic acid) in aqueous solution at pH 8.0 and 20 +/- 1 degrees C with de-protonated Tiron (1,2-dihydroxybenzene-3,5-disulfonate, disodium salt) acting as
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
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)
Avoiding serum matrix effect in calmagite compleximetric measurements of magnesium.
N J Frandsen et al.
Clinical chemistry, 33(5), 719-719 (1987-05-01)
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