J acid urea (4,4'-dihydroxy-7,7'-ureylenedi(naphthalene-2-sulphonic acid), China J acid urea (4,4'-dihydroxy-7,7'-ureylenedi(naphthalene-2-sulphonic acid) Supplier,Factory

J acid urea (4,4'-dihydroxy-7,7'-ureylenedi(naphthalene-2-sulphonic acid)

Lubon Industry Co., Ltd. [China]

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J acid urea
CAS No: 134-47-4
EINECS No: 205-142-9
Molecular formula: C21H16N2O9S2
Molecular weight: 504.4897

Specification:

Appearancedry grey-white powderContent≥80%Free J acid≤0.2%(HPLC)Insoluble solid≤0.3%Chloride value≤5%
Description:
C21H16O9N2S2
M.W:504.50
Use:Used as azo medium.Mainly used for the preparation of direct Orange S and direct acid-proof bright-red 4BS
Package:25kg-plastic-woven bag lined with a plastic bag inside