Benzenesulfonic 5-amino-2-hydroxy

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. 

Further, replacement of sulfo by diazo groups has been observed. It occurs extraordinarily easily on occasions when o- or />-amino- or o- or />-hydroxy-benzenesulfonic acids are coupled with diazonium salts.367... 

CAS 4430-18-6 EINECS/ELINCS 224-618-7 Synonyms Benzenesulfonic acid, 2-[(9,10-dihydro-4-hydroxy-9,10-dioxo-1-anthracenyl) amino]-5-methyl-, monosodium salt Cl 60730 2-[(9,10-Di hydro-4-hydroxy-9,10-d i 0x0-1 -anthracenyl) amino]-5-methylbenzenesulfonic... 

Amino-4-hydroxy benzenesulfonic acid. See 2-Aminophenol-4-sulfonic acid... 

Amino-1-phenol-4-sulfonic acid. See2-Aminophenol-4-sulfonic acid 2-Aminophenol-4-sulfonic acid CAS 98-37-3 EINECS/ELINCS 202-662-8 Synonyms 3-Amino-4-hydroxy benzenesulfonic acid 3-Amino-4-hydroxy sulfonic acid 2-Amino-1-phenol-4-sulfonic acid o-Aminophenyl-p-sulfonic acid Empirical C6H7NO4S Formula C6H3OHNH2SO3H Properties Brn. rhombic cryst. or bik. powd. very... 

Benzenesulfonic acid, didodecyl-, sodium salt. See Sodium didodecylbenzene sulfonate Benzenesulfonic acid, 2,2 -[(9,10-dihydro-9,10-dioxo-1,4-anthracenediyl) diimino] bis (5-methyl)-, disodium salt. See Acid green 25 Benzenesulfonic acid, 3,3 -((9,10-dihydro-9,10-dioxo-1,4-anthracenediyl) diimino) bis (2,4,6-trimethyl-, disodium salt. See Acid blue 80 Benzenesulfonic acid, 2-[(9,10-dihydro-4-hydroxy-9,10-dioxo-1 -anthracenyl) amino]-5-methyl-, monosodium salt. See Acid violet 43 Benzenesulfonic acid, 4-(4,5-dihydro-3-methyl-4-((4-methyl-3-((phenylamino) sulfonyl) phenyl) azo)-5-oxo-1H-pyrazol-1-yl)-, monosodium salt. See Acid yellow 25... 

CA Index Name Benzenesulfonic acid, [[4-[(4-amino-3-methylphenyl)hydroxy[4-(phenylamino) phenyl]metliyl]phenyl]amino]-, monosodium salt CAS Registry Number 30586-13-1 Merck Index Number Not listed Chemical Structure... 

Benzenesulfonic acid, 2-[[2-hydroxy-3-2625599 [[ (4-sulfophenyl) amino]carbonyl]-l -naphthalenyl]azo]-, barium salt (1 1)... 

N-NH2 3 [ 3-Amino-4-oxo-2-thioxo-5-thiazolidinyl)azo]-5-chloro-2-hydroxy-benzenesulfonic acid C,H7C1N405S3 M 382.829 Used as EtOH soln. for photometric detn. of Ag, Pu, Pd, Pt. Orange cryst. powder. 

Dimethylamino)-4-hydroxy-3-oxo-3 i-phenoxazin-2-yl amino]benzenesulfonic acid. C.I. Mordant black 59. C.I. 51125... 

Ethenediyl)bis[5-[(4-ethoxyphenyl)azo] benzenesulfonic acid], see C-00297 2,2 -( 1,2-Ethenediyl)bis[5-[(4-hydroxy-6-chloro-l,3,5-triazin-2-yl)amino]benzenesulfonic acid], E-00045... 

Hydroxy-3-[[(2-hydroxyphenyl)methylene] amino]benzenesulfonic acid, H-00238... 

Amino-4-oxo-2-thioxo-5-thiazolidinyl) azo]-5-chloro-2-hydroxy-benzenesulfonic acid, in C-00141... 

Amino-3-hydroxy-4-pyridinyl)azo] benzenesulfonic acid, A-00217 [4-[l-[2-Amino-3-hydroxy-4-(2-pyridinyl) phenyljazojphenyljarsonic acid, A-00219... 

---