Benzoic acid, 3-[[[[5-(4-carboxyphenyl)-2-furanyl]methylene]hydrazino]sulfonyl]-2-meth yl-

CAS:631416-25-6

Formula:C20H16N2O7S

6-amino-9-(2-carboxyphenyl)-3H-xanthen-3-iminium hydrogen sulfate

CAS:63549-46-2

Formula:C20H16N2O7S

Benzenesulfonic acid, 4-[[(4-hydroxy-3-methoxyphenyl)methylene]amino]-, 4-nitrophenyl ester

CAS:850622-82-1

Formula:C20H16N2O7S

10H-Phenoxazine-1-carboxylic acid, 7-(3,4-dihydroxyphenyl)-3-[(methylamino)sulfonyl]-

CAS:478300-07-1

Formula:C20H16N2O7S

10H-Phenoxazine-1-carboxylic acid, 8-(3,4-dihydroxyphenyl)-3-[(methylamino)sulfonyl]-

CAS:478300-13-9

Formula:C20H16N2O7S

2-Thiopheneacetic acid, 5-[2-[[2-(2,3-dihydroxy-4-nitrophenyl)acetyl]amino]phenyl]-

CAS:929019-28-3

Formula:C20H16N2O7S

2-Thiopheneacetic acid, 5-[2-[[2-(2,3-dihydroxy-5-nitrophenyl)acetyl]amino]phenyl]-

CAS:929019-41-0

Formula:C20H16N2O7S

2-Thiopheneacetic acid, 5-[2-[[2-(4,5-dihydroxy-2-nitrophenyl)acetyl]amino]phenyl]-

CAS:929019-55-6

Formula:C20H16N2O7S

Benzenesulfonic acid, 4-nitro-, 6-[[[(phenylmethyl)amino]carbonyl]oxy]-2,4-hexadiynyl ester

CAS:113406-32-9

Formula:C20H16N2O7S

7H-Furo[3,2-g][1]benzopyran-6-carboxamide, N-[4-(aminosulfonyl)phenyl]-4-methoxy-5-methyl-7-oxo-

CAS:142942-00-5

Formula:C20H16N2O7S