J Acid Urea CAS NO.134-47-4

Product Details

chemical name: j acid urea

synonyms: n,n'-bis(4-hydroxy-2-sulfonaphthalene-7-yl)urea; bis-j acid

cas no.: 134-47-4

molecular formula: c21h16o9n2s2

specifications:

appearance : off-white powder (dry)

assay : 85%min.

free acid(hplc): 0.2% max.

insolubles: 0.2% max.

chlorinity: 5 %max.

application:

intermediate of azo dyes, mainly used in the preparation of direct orange s, direct acid scarlet 4 bs, etc.

134-47-4 4,4'-dihydroxy-7,7'-ureylenedi(naphthalene-2-sulphonic acid

product name	4,4'-dihydroxy-7,7'-ureylenedi(naphthalene-2-sulphonic acid
synonyms	7,7-(carbonyldiimino)bis[4-hydroxy-2-naphthalenesulfonic acid]; 5,5-dihydroxy-7,7-disulpho-2,2-dinaphthyl urea; j acid urea; bis-j acid; 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)
molecular formula	c₂₁h₁₆n₂o₉s₂
molecular weight	504.4897
inchi	inchi=1/c21h16n2o9s2/c24-19-9-15(33(27,28)29)7-11-5-13(1-3-17(11)19)22-21(26)23-14-2-4-18-12(6-14)8-16(10-20(18)25)34(30,31)32/h1-10,24-25h,(h2,22,23,26)(h,27,28,29)(h,30,31,32)
cas registry number	134-47-4
einecs	205-142-9
molecular structure
density	1.798g/cm³
refractive index	1.822