CAS No. 20324-87-2

Disodium 7,7'-(carbonyldiimino)bis(4-hydroxynaphthalene-2-sulphonate)

Cas Number: 20324-87-2 Molecular Structure

Product Code: 101720

Product Name: Disodium 7,7'-(carbonyldiimino)bis(4-hydroxynaphthalene-2-sulphonate)

Cas Number: 20324-87-2

Molecular Formula: C21H14N2Na2O9S2

Safety Data

Product Category: Carbonyl amino; Sodium(Na); Naphthalene; Sulphone

Order [ 20324-87-2 ] Now

Specification:
Appearancedry grey-white powder
Content≥85%≥70%
Free J acid≤0.5%(HPLC)≤2%
Chloride value≤ 7%
Insoluble solid≤0.3%≤0.5%

Description:
C.M.F:C21H14O9N2S2Na2
M.W:548.48
Use:used as azo medium. Mainly used for the preparation of direct orange S and direct acid-proof bright-red 4BS
Package:25kg-plastic-woven bag lined with a plastic bag inside

Product Synonyms

disodium

sulphonate

carbonyldiimino

hydroxynaphthalene

naphthalenesulfonic

more...

169786-14-5

1236846

1-Naphthalenesulfonic acid,4-hydroxy-3-[[4-[[4-[(1-hydroxy-4-sulfo-2-naphthalenyl)azo]phenyl]amino]-3-sulfophenyl]azo]-

61433-23-6

1251668

2-Naphthalenesulfonic acid,4-hydroxy-3-[(4-methoxy-2-sulfophenyl)azo]-7-[[4-(4-morpholinyl)-6-[[4-(phosphonomethyl)phenyl]amino]-1,3,5-triazin-2-yl]amino]-, ammoniumsalt

189947-33-9

1220438

1-Naphthalenesulfonic acid,8-[(4-chloro-2,5-dimethoxyphenyl)azo]-5-[(4,6-dichloro-1,3,5-triazin-2-yl)amino]-, monosodium salt

61489-43-8

1223853

2-Naphthalenesulfonic acid,6-amino-4-hydroxy-3-[(2-hydroxy-5-nitro-3-sulfophenyl)azo]-

93207-02-4

1244295

1-Naphthalenesulfonic acid, 6-(acetylamino)-4-nitro-

95649-04-0

1219875

Naphthalenesulfonic acids, polymers with formaldehyde, sulfonated 1,1-biphenyl and sulfonylbis[phenol], ammonium sodium salts

6271-99-4

1224793

1-Naphthalenesulfonicacid, 3,3'-(1-oxido-1,2-diazenyl)bis-

32718-52-8

1228464

Naphthalenesulfonic acid, methylenebis-, sodium salt

918634-93-2

1235373

2-Naphthalenesulfonic acid,5-[2-(6-amino-1-hydroxy-3-sulfo-2-naphthalenyl)diazenyl]-8-[2-(7-sulfo-1-naphthalenyl)diazenyl]-, sodium salt (1:3)

918634-72-7

1231977

2-Naphthalenesulfonic acid,7-[(4-amino-3-sulfophenyl)amino]-4-hydroxy-3-[2-[2-(2-hydroxyethoxy)-5-methyl-4-[2-(3-sulfophenyl)diazenyl]phenyl]diazenyl]-, sodium salt (1:3)

652139-44-1

1222928

1-Naphthalenesulfonic acid,4-hydroxy-3-[(2-methyl-3,5-dinitrophenyl)azo]-

64181-80-2

1234700

2-Naphthalenesulfonic acid,6-[[4-chloro-6-[(3-sulfophenyl)amino]-1,3,5-triazin-2-yl]amino]-4-hydroxy-3-[(2-sulfophenyl)azo]-, trisodium salt

63970-02-5

1241087

1-Naphthalenesulfonic acid, 8-bromo-

156292-12-5

1227283

1-Naphthalenesulfonicacid, 3-hydroxy-4-[2-(2-hydroxyphenyl)diazenyl]-7-nitro-, sodium salt (1:1)

31055-59-1

1228301

2-Naphthalenesulfonicacid, 3,3'-methylenebis-, silver salt

62121-73-7

1244596

2-Naphthalenesulfonic acid,6-(acetylamino)-4-hydroxy-3-[[4-[[2-(phosphonooxy)ethyl]sulfonyl]phenyl]azo]-

61482-55-1

1221439

Naphthalenesulfonic acid, [(cyanoacetyl)amino]-, monosodium salt

918634-94-3

1235374

1-Naphthalenesulfonic acid,4-[2-[4-[2-(6-amino-1-hydroxy-3-sulfo-2-naphthalenyl)diazenyl]-7-sulfo-1-naphthalenyl]diazenyl]-, sodium salt (1:3)

6421-85-8

1243164

1-Hydroxy-6-ureido-3-naphthalenesulfonic acid

918634-92-1

1235372

2-Naphthalenesulfonic acid,4-hydroxy-7-(phenylamino)-3-[2-[6-sulfo-4-[2-(4-sulfophenyl)diazenyl]-1-naphthalenyl]diazenyl]-, sodium salt (1:3)

42578-38-1

1240293

1-Naphthalenesulfonic acid, 8-(phenylamino)-, magnesium salt

918634-83-0

1235371

2-Naphthalenesulfonic acid,7-[(4-amino-3-sulfophenyl)amino]-4-hydroxy-3-[2-[2-(2-hydroxyethoxy)-5-methyl-4-[2-(4-sulfophenyl)diazenyl]phenyl]diazenyl]-, sodium salt (1:3)

93233-09-1

1248527

2-Naphthalenesulfonic acid, 6-amino-4-hydroxy-3-(8-quinolinylazo)-

88640-55-5

1250713

2-Naphthalenesulfonic acid,5-[[4-[[4-chloro-6-[[2-methoxy-5-[[2-(sulfooxy)ethyl]sulfonyl]phenyl]amino]-1,3,5-triazin-2-yl]amino]-2-sulfophenyl]azo]-4-hydroxy-6-(methylamino)-,trisodium salt

88210-60-0

1235434

1-Naphthalenesulfonic acid,4-hydroxy-6-[(4-methoxyphenyl)amino]-2-[(3-nitro-5-sulfophenyl)azo]-

61556-63-6

1219781

2-Naphthalenesulfonic acid,6-amino-5-[[4-[(2-thienylsulfonyl)amino]phenyl]azo]-

918634-74-9

1231978

2-Naphthalenesulfonic acid,4-hydroxy-3-[2-[2-(2-hydroxyethoxy)-5-methyl-4-[2-(4-methyl-2-sulfophenyl)diazenyl]phenyl]diazenyl]-7-(phenylamino)-, sodium salt (1:2)

110673-14-8

1225697

1-Naphthalenesulfonic acid, 3-diazo-3,4-dihydro-4-oxo-, phenyl ester

52904-97-9

1251059

Naphthalenesulfonic acid, dihydrodioxo-, sodium salt

918634-75-0

1231979

2-Naphthalenesulfonic acid,4-hydroxy-3-[2-[2-(2-hydroxyethoxy)-5-methyl-4-[2-(2-methyl-4-sulfophenyl)diazenyl]phenyl]diazenyl]-7-(phenylamino)-, sodium salt (1:2)