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Key Documents

A8891

Sigma-Aldrich

Arsenazo III sodium salt

suitable for determination of micromolar amounts of calcium (colorimetric)

Synonym(s):

2,2′-(1,8-Dihydroxy-3,6-disulfo-2,7-naphthalene-bis[azo])dibenzenearsonic acid

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About This Item

Empirical Formula (Hill Notation):
C22H18As2N4O14S2 · xNa+
CAS Number:
Molecular Weight:
776.37 (free acid basis)
MDL number:
UNSPSC Code:
12352200

cation traces

Ca: <0.05 μmol/mg (<0.2% w/w)

suitability

suitable for determination of micromolar amounts of calcium (colorimetric)

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