CAS NO:3737-95-9

EC NO:223-117-0

Molecular Formula:C₂₁H₁₂N₂O₇S

Molecular Weight:436.3953

Synonyms:;Calconcarboxylic acid;2-hydroxy-1(2-hydroxy-4-sulfo-1-*naphthylazo)3-na;2,2-dihydroxy-4-sulpho-1,1-azonaphthalene-3-carboxylic acid;3-Hydroxy-4-(2-hydroxy-4-sulpho-1-naphthylazo)-2-naphthalenecarboxylic acid~Patton and Reeders;3-hydroxy-4-[2-(2-oxo-4-sulfonaphthalen-1(2H)-ylidene)hydrazino]naphthalene-2-carboxylic acid;3-hydroxy-4-[(2Z)-2-(2-oxo-4-sulfonaphthalen-1(2H)-ylidene)hydrazino]naphthalene-2-carboxylic acid;3-hydroxy-4-[2-(2-oxo-4-sulfonatonaphthalen-1(2H)-ylidene)hydrazino]naphthalene-2-carboxylate;

Molecular Structure:

CAS NO:2538-85-4

EC NO:219-810-2

Molecular Formula:C₂₀H₁₃N₂NaO₅S

Molecular Weight:416.3824

Synonyms:;C.I. 15705;C.I. Mordant Black 17;C.I. Mordant Black 17, monosodium salt (8CI);Calcon;1-(2-Hydroxy-1-naphthylazo)-2-naphthol-4-sulfonic acid zinc salt;3-Hydroxy-4-(2-hydroxy-1-naphthylazo)-1-naphthalenesulfonic acid, sodium salt;Eriochrome blue-black R;Mordant Black 17;Zinchrome R;calcon(R);1(2-hydroxy-1-naphthylazo)2-*naphthol-4-sulfonic;sodium 3-hydroxy-4-(2-hydroxy-1-naphthylazo)-1-naphthalenesulphonate;Mordant Black 17 (15705);CALCONE;Mordantblack;sodium (4E)-4-[(2-hydroxynaphthalen-1-yl)hydrazono]-3-oxo-3,4-dihydronaphthalene-1-sulfonate;sodium 3-hydroxy-4-[(E)-(2-hydroxynaphthalen-1-yl)diazenyl]naphthalene-1-sulfonate;sodium 3-hydroxy-4-[(2-hydroxy-1-naphthyl)azo]naphthalene-1-sulfonate;

Molecular Structure: