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Chemical structure of Direct Blue 71

GC76153

Direct Blue 71

Also known as tetrasodium;3-[[4-[[4-[(6-amino-1-hydroxy-3-sulfonatonaphthalen-2-yl)diazenyl]-6-sulfonatonaphthalen-1-yl]diazenyl]naphthalen-1-yl]diazenyl]naphthalene-1,5-disulfonate

Direct Blue 71 is a good dyeing agent for cotton fabrics and can be adsorbed by palm ash and removed from the aqueous solution

ChemicalCAS4399-55-7MW1029.87FormulaC40H23N7Na4O13S4
CAS number
4399-55-7
Molecular weight
1029.87
Formula
C40H23N7Na4O13S4
Solubility
DMSO： 50 mg/mL (48·55 mM; Need ultrasonic)
InChIKey
QTTDXDAWQMDLOF-UHFFFAOYSA-J
Catalogue number
GC76153
Brand
GLPBIO
Computed properties PubChem CID 20427 · TPSA 383 Ų · H-bond donors 2 · H-bond acceptors 20
TPSA
383 Ų
H-bond donors
2
H-bond acceptors
20
Rotatable bonds
6
Heavy atoms
68

SMILES C1=CC=C2C(=C1)C(=CC=C2N=NC3=CC4=C(C=CC=C4S(=O)(=O)[O-])C(=C3)S(=O)(=O)[O-])N=NC5=C6C=CC(=CC6=C(C=C5)N=NC7=C(C=C8C=C(C=CC8=C7O)N)S(=O)(=O)[O-])S(=O)(=O)[O-].[Na+].[Na+].[Na+].[Na+]

Computed descriptors from PubChem (CID 20427), public domain. Identity cross-checked against the supplier's molecular formula and weight — verify before use.

Ordering in Israel

Lead time
Ships from the manufacturer to your lab in 8–14 business days; customs and cold chain handled by LABO Scientific.
Pricing
Quoted in ILS, excl. VAT. Add the item to your quote and we confirm the final price, usually the same business day.
Documents
Lot certificate of analysis and manufacturer SDS are emailed with your order confirmation.
Who we serve
Universities, hospitals and biotech companies across Israel. Research use only — not for diagnostic or therapeutic use.