2-naphthalene sulfonic acids and derivatives

7-Amino-1,3-naphthalendisulfonsäure, Tech., Thermo Scientific Chemicals

7-Amino-1,3-naphthalendisulfonsäure, Tech., Thermo Scientific Chemicals

CAS: 86-65-7 Summenformel: C10H9NO6S2 Molekulargewicht (g/mol): 303.29 MDL-Nummer: MFCD00003991 InChI-Schlüssel: CMOLPZZVECHXKN-UHFFFAOYSA-N Synonym: beta-naphthylamine-6,8-disulfonic acid, 2-naphthylamine-6,8-disulfonic acid, 2-aminonaphthalene-6,8-disulfonic acid, unii-7c482fx29k, 2-amino-6,8-disulfonaphthalene, amino-g acid, 1,3-naphthalenedisulfonic acid, 7-amino, amino-g-acid, 7-amino-1,3-naphthalenedisulfonic acid, amido-g-acid PubChem CID: 6851 IUPAC-Name: 7-Aminonaphthalen-1,3-Disulfonsäure SMILES: C1=CC(=CC2=C(C=C(C=C21)S(=O)(=O)O)S(=O)(=O)O)N

1,3,6-Naphthalentrisulfonsäure, Natriumsalzhydrat, Isomerengemisch, Thermo Scientific Chemicals

1,3,6-Naphthalentrisulfonsäure, Natriumsalzhydrat, Isomerengemisch, Thermo Scientific Chemicals

CAS: 19437-42-4 Summenformel: xNa·xH2O Molekulargewicht (g/mol): 368.36 MDL-Nummer: MFCD00149263 InChI-Schlüssel: BERQWQSQOIEUMA-UHFFFAOYSA-M Synonym: 1,3,6-naphthalenetrisulfonic acid, sodium salt 1:?, 1,3,6-naphthalenetrisulfonic acid, sodium salt PubChem CID: 73555608 IUPAC-Name: Natrium;5,7-Disulfonaphthalin-2-sulfonat SMILES: C1=CC2=C(C=C(C=C2C=C1S(=O)(=O)[O-])S(=O)(=O)O)S(=O)(=O)O.[Na+]

4,5-Dihydroxynaphthalen-2,7-disulfonsäure, Dinatriumsalz Dihydrat, 98 %, Thermo Scientific Chemicals

4,5-Dihydroxynaphthalen-2,7-disulfonsäure, Dinatriumsalz Dihydrat, 98 %, Thermo Scientific Chemicals

CAS: 5808-22-0 Summenformel: C10H6O8S2 Molekulargewicht (g/mol): 318.27 MDL-Nummer: MFCD00150612 InChI-Schlüssel: HLVXFWDLRHCZEI-UHFFFAOYSA-L Synonym: 4,5-dihydroxynaphthalene-2,7-disulfonic acid disodium salt dihydrate, acs 5g, di sodium; 4,5-dihydroxy-7-sulfo-naphthalene-2-sulfonic acid, 4,5-dihydroxy-2,7-naphthalenedisulfonate, chromotropic acid sodium salt PubChem CID: 124202444 IUPAC-Name: 4,5-dihydroxynaphthalene-2,7-disulfonate SMILES: OC1=CC(=CC2=CC(=CC(O)=C12)S([O-])(=O)=O)S([O-])(=O)=O

Brillantschwarz BN, MP Biomedicals™

Brillantschwarz BN, MP Biomedicals™

CAS: 2519-30-4 Summenformel: C28H17N5Na4O14S4 Molekulargewicht (g/mol): 867.664 InChI-Schlüssel: AGKKBBSOKGLVTM-YENKNCRGSA-J Synonym: Food Black 1, Lebensmittel Schwarz 1 PubChem CID: 6321379 IUPAC-Name: Tetrasodium;(6 E)-4-Acetamido-5 -Oxo-6-[[7-sulfonato-4-[(4-sulfonatophenyl)diazenyl]naphthalen-1 -yl]hydrazinyliden]naphthalin-1,7-disulfonat SMILES: CC(=O)NC1=C2C(=C(C=C1)S(=O)(=O)[O-])C=C(C(=NNC3=C4C=C(C=CC4=C(C=C3)N=NC5=CC=C(C=C5)S(=O)(=O)[O-])S(=O)(=O)[O-])C2=O)S(=O)(=O)[O-].[Na+].[Na+].[Na+].[Na+]

4,5-Dihydroxynaphthalen-2,7-disulfonsäure, Dinatriumsalz Dihydrat, ACS Reagenz, Thermo Scientific Chemicals

4,5-Dihydroxynaphthalen-2,7-disulfonsäure, Dinatriumsalz Dihydrat, ACS Reagenz, Thermo Scientific Chemicals

CAS: 5808-22-0 Summenformel: C10H6O8S2 Molekulargewicht (g/mol): 318.27 MDL-Nummer: MFCD00150612 InChI-Schlüssel: HLVXFWDLRHCZEI-UHFFFAOYSA-L Synonym: 4,5-dihydroxynaphthalene-2,7-disulfonic acid disodium salt dihydrate, acs 5g, di sodium; 4,5-dihydroxy-7-sulfo-naphthalene-2-sulfonic acid, 4,5-dihydroxy-2,7-naphthalenedisulfonate, chromotropic acid sodium salt PubChem CID: 124202444 SMILES: OC1=CC(=CC2=CC(=CC(O)=C12)S([O-])(=O)=O)S([O-])(=O)=O

2-Naphthalensulfonsäure-Hydrat, 90 %, technisch, Thermo Scientific Chemicals

2-Naphthalensulfonsäure-Hydrat, 90 %, technisch, Thermo Scientific Chemicals

CAS: 76530-12-6 Summenformel: C10H8O3S·xH2O Molekulargewicht (g/mol): 208.24 MDL-Nummer: MFCD00149271 InChI-Schlüssel: HKGOFWIZZIYCOS-UHFFFAOYSA-N Synonym: naphthalene-2-sulphonic acid monohydrate, 2-naphthalene-sulfonic acid monohydrate, c10h8so3.h2o, ksc352o8d, acmc-20aj4s, kyselina2-naftalensulfonova, 2-naphthalenesulfonicacid, hydrate 1:1, 2-naphthalenesulfonic acid monohydrate, 2-naphthalenesulfonic acid hydrate, naphthalene-2-sulfonic acid hydrate PubChem CID: 20499058 IUPAC-Name: Naphthalin-2-Sulfonsäure;hydrat SMILES: C1=CC=C2C=C(C=CC2=C1)S(=O)(=O)O.O

Naphthalin-2-Sulfonsäure, 98 %, Thermo Scientific Chemicals

Naphthalin-2-Sulfonsäure, 98 %, Thermo Scientific Chemicals

CAS: 120-18-3 Summenformel: C10H8O3S Molekulargewicht (g/mol): 208.23 MDL-Nummer: MFCD00004089 InChI-Schlüssel: KVBGVZZKJNLNJU-UHFFFAOYSA-N Synonym: 2-naphthalenesulfonic acid, monohydrate, kyselina 2-naftalensulfonova czech, 2-naphthylsulfonic acid, unii-o9s4k2s25e, 2-naphthalene sulfonic acid, kyselina 2-naftalensulfonova, naphthalene-2-sulphonic acid, beta-naphthalenesulfonic acid, beta-naphthylsulfonic acid, 2-naphthalenesulfonic acid PubChem CID: 8420 ChEBI: CHEBI:44229 IUPAC-Name: naphthalene-2-sulfonic acid SMILES: OS(=O)(=O)C1=CC=C2C=CC=CC2=C1

Naphthalin-2-Sulfonsäure-Hydrat, 94 %, Thermo Scientific Chemicals

Naphthalin-2-Sulfonsäure-Hydrat, 94 %, Thermo Scientific Chemicals

CAS: 76530-12-6 Summenformel: C10H10O4S Molekulargewicht (g/mol): 226.246 MDL-Nummer: MFCD00149271 InChI-Schlüssel: HKGOFWIZZIYCOS-UHFFFAOYSA-N Synonym: naphthalene-2-sulphonic acid monohydrate, 2-naphthalene-sulfonic acid monohydrate, c10h8so3.h2o, ksc352o8d, acmc-20aj4s, kyselina2-naftalensulfonova, 2-naphthalenesulfonicacid, hydrate 1:1, 2-naphthalenesulfonic acid monohydrate, 2-naphthalenesulfonic acid hydrate, naphthalene-2-sulfonic acid hydrate PubChem CID: 20499058 IUPAC-Name: Naphthalin-2-Sulfonsäure;hydrat SMILES: C1=CC=C2C=C(C=CC2=C1)S(=O)(=O)O.O

Naphthalin-2-Sulfonylchlorid, 97 %, Thermo Scientific Chemicals

Naphthalin-2-Sulfonylchlorid, 97 %, Thermo Scientific Chemicals

CAS: 93-11-8 Summenformel: C10H7ClO2S Molekulargewicht (g/mol): 226.67 MDL-Nummer: MFCD00004087 InChI-Schlüssel: OPECTNGATDYLSS-UHFFFAOYSA-N Synonym: .beta.-naphthalenesulfonyl chloride, 2-naphthalene sulfonyl chloride, 2-naphthalenylsulfonyl chloride, 2-naphthalenesulfonylchloride, naphthalene-2-sulphonyl chloride, .beta.-naphthalenesulfochloride, naphthalene-2-sulfonic acid chloride, beta-naphthalenesulfonyl chloride, 2-naphthylsulfonyl chloride, 2-naphthalenesulfonyl chloride PubChem CID: 7125 IUPAC-Name: naphthalene-2-sulfonyl chloride SMILES: ClS(=O)(=O)C1=CC=C2C=CC=CC2=C1

Xylidin-Ponceau 2R, rein, Thermo Scientific Chemicals

Xylidin-Ponceau 2R, rein, Thermo Scientific Chemicals

CAS: 3761-53-3 Summenformel: C18H14N2Na2O7S2 Molekulargewicht (g/mol): 480.417 MDL-Nummer: MFCD00003897 InChI-Schlüssel: YJVBLROMQZEFPA-UHFFFAOYSA-L Synonym: Ponceau G, R, 2R, 4-(2, 4-Dimethylphenylazo)-3-hydroxy-2, 7-naphthalenedisulfonic acid, C.I. 16150, 4-(2,4-Dimethylphenylazo)-3-hydroxy-2,7-naphthalenedisulfonic acid, disodium salt PubChem CID: 102092631 ChEBI: CHEBI:82369 IUPAC-Name: Dinatrium;5-[(2,4-Dimethylphenyl)Diazenyl]-6-Oxido-7-Sulfonaphthalin-2-Sulfonat SMILES: CC1=CC(=C(C=C1)N=NC2=C3C=CC(=CC3=CC(=C2[O-])S(=O)(=O)O)S(=O)(=O)[O-])C.[Na+].[Na+]

Naphthalin-2-sulfonsäure-Natriumsalz, 98 %, kann bis zu 10 % anorganische Restsalze und Wasser erhalten, Thermo Scientific Chemicals

Naphthalin-2-sulfonsäure-Natriumsalz, 98 %, kann bis zu 10 % anorganische Restsalze und Wasser erhalten, Thermo Scientific Chemicals

CAS: 532-02-5 Summenformel: C10H7NaO3S Molekulargewicht (g/mol): 230.21 MDL-Nummer: MFCD00064186 InChI-Schlüssel: YWPOLRBWRRKLMW-UHFFFAOYSA-M Synonym: sodium naphthalene-2-sulphonate, sodium beta-naphthalenesulfonate, 2-naphthalene sulfonic acid sodium salt, sodium naphthalene-6-sulfonate, sodium-2-naphthalenesulfonate, unii-r5f0ctd2oj, 2-naphthalenesulfonic acid, sodium salt, 2-naphthalenesulfonic acid sodium salt, sodium naphthalene-2-sulfonate, sodium 2-naphthalenesulfonate PubChem CID: 23661868 SMILES: [Na+].[O-]S(=O)(=O)C1=CC=C2C=CC=CC2=C1

Suramin Hexanatriumsalz, 98 %, Thermo Scientific Chemicals

Suramin Hexanatriumsalz, 98 %, Thermo Scientific Chemicals

CAS: 129-46-4 Summenformel: C51H34N6Na6O23S6 Molekulargewicht (g/mol): 1429.15 MDL-Nummer: MFCD00210217 InChI-Schlüssel: VAPNKLKDKUDFHK-UHFFFAOYSA-H Synonym: suramine sodium salt, fourneau 309, naphuride sodium, naganinum, moranyl, antrypol, suramin sodium salt, suramin hexasodium salt, suramin hexasodium, suramin sodium PubChem CID: 8514 IUPAC-Name: hexasodium 8-{4-methyl-3-[3-({[3-({2-methyl-5-[(4,6,8-trisulfonatonaphthalen-1-yl)carbamoyl]phenyl}carbamoyl)phenyl]carbamoyl}amino)benzamido]benzamido}naphthalene-1,3,5-trisulfonate SMILES: [Na+].[Na+].[Na+].[Na+].[Na+].[Na+].CC1=CC=C(C=C1NC(=O)C1=CC(NC(=O)NC2=CC(=CC=C2)C(=O)NC2=CC(=CC=C2C)C(=O)NC2=C3C(C=C(C=C3S([O-])(=O)=O)S([O-])(=O)=O)=C(C=C2)S([O-])(=O)=O)=CC=C1)C(=O)NC1=C2C(C=C(C=C2S([O-])(=O)=O)S([O-])(=O)=O)=C(C=C1)S([O-])(=O)=O

8-Amino-1-Naphthol-3,6-Disulfonsäure, Mononatriumsalz-Monohydrat, 80 %, Thermo Scientific Chemicals

8-Amino-1-Naphthol-3,6-Disulfonsäure, Mononatriumsalz-Monohydrat, 80 %, Thermo Scientific Chemicals

CAS: 5460-09-3 Summenformel: C10H8NNaO7S2·H2O Molekulargewicht (g/mol): 359.32 MDL-Nummer: MFCD00150460 InChI-Schlüssel: QPILZZVXGUNELN-UHFFFAOYSA-M

4,5-Dihydroxynaphthalin-2,7-Disulfonsäure-Dinatriumsalzdihydrat, ACS, Thermo Scientific Chemicals

4,5-Dihydroxynaphthalin-2,7-Disulfonsäure-Dinatriumsalzdihydrat, ACS, Thermo Scientific Chemicals

CAS: 5808-22-0 Summenformel: C10H6O8S2 Molekulargewicht (g/mol): 318.27 MDL-Nummer: MFCD00150612 InChI-Schlüssel: HLVXFWDLRHCZEI-UHFFFAOYSA-L Synonym: 4,5-dihydroxynaphthalene-2,7-disulfonic acid disodium salt dihydrate, acs 5g, di sodium; 4,5-dihydroxy-7-sulfo-naphthalene-2-sulfonic acid, 4,5-dihydroxy-2,7-naphthalenedisulfonate, chromotropic acid sodium salt PubChem CID: 124202444 IUPAC-Name: 4,5-Dihydroxynaphthalin-2,7-Disulfonsäure;natrium;dihydrat SMILES: OC1=CC(=CC2=CC(=CC(O)=C12)S([O-])(=O)=O)S([O-])(=O)=O

Ethylmesitylacetat, 97 %, Thermo Scientific Chemicals

Ethylmesitylacetat, 97 %, Thermo Scientific Chemicals

CAS: 5460-08-2 MDL-Nummer: MFCD00051916

5-Aminonaphthalen-2-sulfonsäure, 97 %, Thermo Scientific Chemicals

5-Aminonaphthalen-2-sulfonsäure, 97 %, Thermo Scientific Chemicals

CAS: 119-79-9 Summenformel: C10H9NO3S Molekulargewicht (g/mol): 223.246 MDL-Nummer: MFCD00004030 InChI-Schlüssel: UWPJYQYRSWYIGZ-UHFFFAOYSA-N Synonym: cleve's beta-acid, 5-naphthylamine-2-sulfonic acid, 1-amino-6-sulfonaphthalene, cleve's acid-1,6, kyselina cleve, 1-naphthylamine-6-sulfonic acid, 2-naphthalenesulfonic acid, 5-amino, 1-aminonaphthalene-6-sulfonic acid, 1,6-cleve's acid, 5-amino-2-naphthalenesulfonic acid PubChem CID: 8408 ChEBI: CHEBI:44188 IUPAC-Name: 5-aminonaphthalin-2-sulfonsäure SMILES: C1=CC2=C(C=CC(=C2)S(=O)(=O)O)C(=C1)N

Thermo Scientific Chemicals Hydroxynaphtholblau, Dinatriumsalz, rein

Thermo Scientific Chemicals Hydroxynaphtholblau, Dinatriumsalz, rein

CAS: 165660-27-5 Summenformel: C20H12N2Na2O11S3 Molekulargewicht (g/mol): 600.495 MDL-Nummer: MFCD00004075 InChI-Schlüssel: LXJHFXHZWYBBKJ-LUUCHEBKSA-N Synonym: 2,2'-Dihydroxy-1,1'-azonaphthalene-3',4,6'-trisulfonic acid disodium salt PubChem CID: 131849366 IUPAC-Name: 3-Hydroxy-4-[(2Z)-2-(2-oxo-4-Sulfonaphthalin-1-Yliden)Hydrazinyl]Naphthalin-2,7-Disulfonsäure; Natrium SMILES: C1=CC=C2C(=C1)C(=CC(=O)C2=NNC3=C4C=CC(=CC4=CC(=C3O)S(=O)(=O)O)S(=O)(=O)O)S(=O)(=O)O.[Na].[Na]

4,5-Dihydroxynaphthalin-2,7-disulfonsäure Dinatriumsalz-Dihydrat, 90 %, Thermo Scientific Chemicals

4,5-Dihydroxynaphthalin-2,7-disulfonsäure Dinatriumsalz-Dihydrat, 90 %, Thermo Scientific Chemicals

CAS: 5808-22-0 Summenformel: C10H6O8S2 Molekulargewicht (g/mol): 318.27 MDL-Nummer: MFCD00150612 InChI-Schlüssel: HLVXFWDLRHCZEI-UHFFFAOYSA-L Synonym: 1,8-Dihydroxynaphthalene-3,6-disulfonic acid, disodium salt dihydrate; Chromotropic acid, disodium salt dihydrate IUPAC-Name: 4,5-Dihydroxynaphthalin-2,7-disulfonat SMILES: OC1=CC(=CC2=CC(=CC(O)=C12)S([O-])(=O)=O)S([O-])(=O)=O

8-Aminonaphthalen-2-sulfonsäure, 95 %, Thermo Scientific Chemicals

8-Aminonaphthalen-2-sulfonsäure, 95 %, Thermo Scientific Chemicals

CAS: 119-28-8 Summenformel: C10H9NO3S Molekulargewicht (g/mol): 223.246 MDL-Nummer: MFCD00004032 InChI-Schlüssel: QEZZCWMQXHXAFG-UHFFFAOYSA-N Synonym: 1-amino-naphthalene-7-sulphonic acid, 1-amino-7-naphthalenesulfonic acid, 8-naphthylamine-2-sulfonic acid, 1-aminonaphthalene-7-sulfonic acid, 1-amino-7-sulfonaphthalene, cleve's theta-acid, 2-naphthalenesulfonic acid, 8-amino, 1-naphthylamine-7-sulfonic acid, 1,7-cleve's acid, 8-amino-2-naphthalenesulfonic acid PubChem CID: 8386 IUPAC-Name: 8-aminonaphthalin-2-sulfonsäure SMILES: C1=CC2=C(C=C(C=C2)S(=O)(=O)O)C(=C1)N

Arsenazo III, Thermo Scientific Chemicals

Arsenazo III, Thermo Scientific Chemicals

CAS: 1668-00-4 Summenformel: C22H18As2N4O14S2 Molekulargewicht (g/mol): 776.363 MDL-Nummer: MFCD00036695 InChI-Schlüssel: TVMZRHVOFZTNET-RIRMOVKSSA-N Synonym: 3,6-bis 2-2-arsonophenyl hydrazin-1-ylidene-4,5-dioxonaphthalene-2,7-disulfonic acid, 3,6-bis 2-2-arsonophenyl diazenyl-4,5-dihydroxy-2,7-naphthalenedisulfonic acid, 3,6-bis 2-2-arsonophenyl diazen-1-yl-4,5-dihydroxynaphthalene-2,7-disulfonic acid, 2,2'-1,8-dihydroxy-3,6-disulfonaphthylene-2,7-bisazo bisbenzenearsonic acid, 2,7-bis 2-arsonophenylazo chromotropic acid, 2,7-bis 2-arsonophenylazo-1,8-dihydroxynaphthalene-3,6-disulfonic acid, 2,7-bis 2-arsonophenylazo-1, 8-dihydroxy-3, 6-naphthalene disulfonic acid, 2,2'-1, 8-dihydroxy-3,6-disulfo-2, 7-naphthalene-bis azo dibenzenearsonic acid, arsenazo iii sodium salt, arsenazo iii PubChem CID: 9810878 IUPAC-Name: (3Z,6E)-3,6-bis[(2-arsonophenyl)hydrazinyliden]-4,5-dioxonaphthalen-2,7-Disulfonsäure SMILES: C1=CC=C(C(=C1)NN=C2C(=CC3=C(C2=O)C(=O)C(=NNC4=CC=CC=C4[As](=O)(O)O)C(=C3)S(=O)(=O)O)S(=O)(=O)O)[As](=O)(O)O

2-Naphthalensulfonylchlorid, 97 %, Thermo Scientific Chemicals

2-Naphthalensulfonylchlorid, 97 %, Thermo Scientific Chemicals

CAS: 93-11-8 Summenformel: C10H7ClO2S Molekulargewicht (g/mol): 226.67 MDL-Nummer: MFCD00004087 InChI-Schlüssel: OPECTNGATDYLSS-UHFFFAOYSA-N Synonym: .beta.-naphthalenesulfonyl chloride, 2-naphthalene sulfonyl chloride, 2-naphthalenylsulfonyl chloride, 2-naphthalenesulfonylchloride, naphthalene-2-sulphonyl chloride, .beta.-naphthalenesulfochloride, naphthalene-2-sulfonic acid chloride, beta-naphthalenesulfonyl chloride, 2-naphthylsulfonyl chloride, 2-naphthalenesulfonyl chloride PubChem CID: 7125 IUPAC-Name: naphthalene-2-sulfonyl chloride SMILES: ClS(=O)(=O)C1=CC=C2C=CC=CC2=C1

Hydroxynaphtholblau Dinatriumsalz, für ACS-Analyse, MP Biomedicals™

Hydroxynaphtholblau Dinatriumsalz, für ACS-Analyse, MP Biomedicals™

CAS: 165660-27-5 Summenformel: C20H14N2Na2O11S3 Molekulargewicht (g/mol): 600.495 InChI-Schlüssel: LXJHFXHZWYBBKJ-LUUCHEBKSA-N Synonym: Calciumindikator auf Natriumchlorid, -(2-naphtholazo-3, 6-disulfonsäure)-2-naphthol-4-sulfonsäure-Trinatriumsalz PubChem CID: 131849366 IUPAC-Name: 3-Hydroxy-4-[(2Z)-2-(2-oxo-4-sulfonaphthalen-1-yliden)hydrazinyl]naphthalen-2,7-disulfonsäure; Natrium SMILES: C1=CC=C2C(=C1)C(=CC(=O)C2=NNC3=C4C=CC(=CC4=CC(=C3O)S(=O)(=O)O)S(=O)(=O)O)S(=O)(=O)O.[Na].[Na]

Hydroxynaphthol Blue, Indikator für die Metalltitration, Honeywell™

Hydroxynaphthol Blue, Indikator für die Metalltitration, Honeywell™

CAS: 63451-35-4 Summenformel: C20H11N2Na3O11S3 Molekulargewicht (g/mol): 620.46 MDL-Nummer: MFCD00036393 InChI-Schlüssel: JQECMNGWLIFQLL-UHFFFAOYSA-K PubChem CID: 44134769 IUPAC-Name: Trinatrium;3-hydroxy-4-[2-(2-oxo-4-sulfonatonaphthalen-1-yliden)hydrazinyl]naphthalin-2,7-disulfonat SMILES: C1=CC=C2C(=C1)C(=CC(=O)C2=NNC3=C4C=CC(=CC4=CC(=C3O)S(=O)(=O)[O-])S(=O)(=O)[O-])S(=O)(=O)[O-].[Na+].[Na+].[Na+]

Arsenazo III, Honeywell Fluka™

Arsenazo III, Honeywell Fluka™

CAS: 1668-00-4 Summenformel: C22H18As2N4O14S2 Molekulargewicht (g/mol): 776.363 MDL-Nummer: MFCD00036695 InChI-Schlüssel: TVMZRHVOFZTNET-RIRMOVKSSA-N PubChem CID: 9810878 IUPAC-Name: (3Z,6E)-3,6-bis[(2-arsonophenyl)hydrazinyliden]-4,5-dioxonaphthalen-2,7-Disulfonsäure SMILES: C1=CC=C(C(=C1)NN=C2C(=CC3=C(C2=O)C(=O)C(=NNC4=CC=CC=C4[As](=O)(O)O)C(=C3)S(=O)(=O)O)S(=O)(=O)O)[As](=O)(O)O

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