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J acid Urea 137-47-4
Category : Intermediates/Dyestuff intermediates
CAS NO : 137-47-4 EC NO : 205-142-9 MF : C21H16N2O9S2 MW : 504.4897 Specification : 80%min Packing : 25kg bag Product description : J acid Urea 137-47-4 High Quality Earliest Shipment Competitive price Professional Service Trade Name: J-acid urea Molecular formula and weight:C21H16O9N2S2 = 504.50 Structure: CAS No.: [137-47-4] Item Indication Appearance dry grey-white powder Content ≥80% Free J acid ≤0.2%(HPLC) Insoluble solid ≤0.3% Chloride value ≤5% Additional Information: Origin : China Package: 25kg-plastic-woven bag lined with a plastic bag inside Product Application:Used as azo medium.Mainly used for the preparation of direct Orange S and direct acid-proof bright-red 4BS Uses : industrial use Synonyms : 7,7-(carbonyldiimino)bis[4-hydroxy-2-naphthalenesulfonic acid];5,5-DIHYDROXY-7,7-DISULPHO-2,2-DINAPHTHYL UREA;J Acid Urea;4,4'-dihydroxy-7,7'-ureylenedi(naphthalene-2-sulphonic acid);7,7'-(Carbonyldiimino)bis[4-hydroxy-2-naphthalenesulfonic acid];6,6'-ureylene-bis(1-naphthol-3-sulfonic acid);phosgenated;N,N'-bis(4-hydroxy-2-sulfonaphthalene-7-yl)urea;7,7'-Ureylenebis(4-hydroxy-2-naphthalenesulfonic acid);N,N'-Bis[6-(1-naphthol-3-sulfonic acid)]urea;2-Naphthalenesulfonic acid, 7,7-(carbonyldiimino)bis4-hydroxy-;4-hydroxy-7-{[(5-hydroxy-7-sulfonaphthalen-2-yl)carbamoyl]amino}naphthalene-2-sulfonic acid;7,7'-Ureylene-bis-(4-hydroxynaphthalene-2-sulfonic acid);Carbonyl J Acid; Molecular Structure : 
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J acid Urea