2,7-Naphthalenedisulfonic acid, 3-hydroxy-4-[2-(2-hydroxy-4-sulfo-1-naphthalenyl)diazenyl]- → 2,2'-Azobisphenol

HRID 481833Notes

Reaction equation

HRID 481833 reaction equation
[OH:1][C:2]1[C:11](S(O)(=O)=O)=[CH:10][C:9]2[C:4](=CC=C(S(O)(=O)=O)C=2)[C:3]=1[N:20]=[N:21][C:22]1[C:31]2[C:26](=CC=CC=2)[C:25](S(O)(=O)=O)=[CH:24][C:23]=1[OH:36].C1C(N=NC2C(=O)N(C3C=CC(S([O-])(=O)=O)=CC=3)N=C2C([O-])=O)=CC=C(S([O-])(=O)=O)C=1.[Na+].[Na+].[Na+]>>[OH:36][C:23]1[CH:24]=[CH:25][CH:26]=[CH:31][C:22]=1[N:21]=[N:20][C:3]1[CH:4]=[CH:9][CH:10]=[CH:11][C:2]=1[OH:1]

Participants

3

Reactant 2

HCID 1132332,7-Naphthalenedisulfonic acid, 3-hydroxy-4-[2-(2-hydroxy-4-sulfo-1-naphthalenyl)diazenyl]-HCID 164825Tartrazine

Product 1

HCID 749022,2'-Azobisphenol

Procedure

2-Hydroxy-1-(2-hydroxy-4-sulfo-1-naphthylazo)-3,6-naphthalenedisulfonic acid, trisodium salt

Sources & evidence

ORD record
ord-f7dfaff7161d4bbfb57610e9590613a3
Source dataset
uspto-grants-1998_08
Patent number
US05790627

Reaction notes

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