Sodium 4- methoxy benzenesulfonate

Attempts to improve selectivity and sensitivity of spectrophotometric measurements by using new chromogenic reagents, e.g. of 2-(5-nitro-2-pyridylazo)-5-(A -propyl-A-sulfopropylamino)phenol for flow-injection-spectrophotometric determination of trace V in river water [3], Af-butyl-A -(sodium p-amino benzenesulfonate) thiourea to determine Pd in minerals and catalysts [4], benzeneacetaldehyde-4-hydroxy-oxo-aldoxime to determine Co in pharmaceuticals, biological materials and steels [5], 2,6-dichloroarsenazo for the determination of Bi in copper alloys [6], lV-undecyl-A-(sodium p-aminobenzenesulfonate)-thiourea to identify and determine Cu in alloy, liver and wheat [7], dimethoxyhydroxyphenylflurone for the determination of trace amounts of Mo in steel and pure iron [8] and 5-(6-methoxy-2-benzothiazole-azo)-8-aminoquinoline for the detection of Co in drainage sediment and Ni in A1 alloy [9] have recently been reported. 

Bis(methoxy-carbonyl)benzenesulfonate Sodium dimethyl 5-sulph-onatoisophthalate 5-Sulfoisophthalic add, dimethyl ester, sodium salt. 

In other studies, it was shown that five -labelled azo dyes. Orange I (XI), Orange II (XII), Acid Yellow 9 (XXIV), 4-(3-Methoxy-4-Hydroxyphenylazo) Benzenesulfonic Acid (XXV), and 4-(2-SuIfo-3 -Metho3qr-4-Hydrozyazobenzene-4-Azo-Benzenesulfonic Acid Mono Sodium Salt (XXVI), all of which were s themzed fix>m C-sulfanilic acid as well as C-8ulfanilic add itself, were degraded (17.2 - 34.8%) to CO, by P. chrysosporium [28]. 

Synonyms Benzenesulfonic acid, 5-benzoyl-4-hydroxy-2-methoxy-, monosodium salt 2-Hydroxy-4-methoxybenzophenone-5-sodium sulfonate... 

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