5,5'-Dihydroxy-2,2'-dinaphthylamine-7,7'-disulphonic acid
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5,5'-Dihydroxy-2,2'-dinaphthylamine-7,7'-disulphonic acid
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CAS No:
87-03-6
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Formula:
C20H15NO8S2
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Chemical Name:
5,5'-Dihydroxy-2,2'-dinaphthylamine-7,7'-disulphonic acid
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Synonyms:
7,7'-Iminobis(4-hydroxy-2-naphthalenesulfonic acid);5,5'-dihydroxy-2,2'-dinaphthylamine-7,7'-disulphonic acid;4,4'-Dihydroxy-7,7'-iminodi(naphthalene-2-sulfonic acid);Rhoduline acid;4,4'-dihydroxy-7,7'-iminodi(naphthalene-2-sulphonic acid);N,N-Bis(5-naphthol-7-sulfonic acid)amine;6,6'-Iminobis(1-hydroxynaphthalene-3-sulfonic acid);4-hydroxy-7-[(5-hydroxy-7-sulfo-2-naphthyl)amino]naphthalene-2-sulfonic acid
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CAS No:
Description
7,70 -Iminobis(4-hydroxynaphthalene-2-sulfonic acid) [87-03-6] J acid imide, di-J acid, is produced by heating the sodium salt of J acid in aqueous sodium bisulfite at 106℃ for 36 h (yield 89 %). It is used to produce C.I. Direct Reds 31 and 149, as well as C.I. Direct Violets 48, 66, and 102.
5,5'-Dihydroxy-2,2'-dinaphthylamine-7,7'-disulphonic acid Basic Attributes
461.46
461.46
201-719-4
37203|1698
TSCA listed
DTXSID8058952
2934999090
Characteristics
177.99000
5.87580
Grey-yellow Paste
1.734
772.18℃[at 101 325 Pa]
1.802
36.1g/L
0Pa at 25℃
Not classified
-0.14±0.40(Predicted)
5,5'-Dihydroxy-2,2'-dinaphthylamine-7,7'-disulphonic acid Use and Manufacturing
Rhoduline acid is an acidic compound that can be used for the synthesis of azo dyes[1].
2-Naphthalenesulfonic acid, 7,7'-iminobis[4-hydroxy-: ACTIVE
Computed Properties
Molecular Weight:461.5
XLogP3:2.7
Hydrogen Bond Donor Count:5
Hydrogen Bond Acceptor Count:9
Rotatable Bond Count:4
Exact Mass:461.02390878
Monoisotopic Mass:461.02390878
Topological Polar Surface Area:178
Heavy Atom Count:31
Complexity:781
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes
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5,5'-Dihydroxy-2,2'-dinaphthylamine-7,7'-disulphonic acid
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