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Chemical structure of Congo Red

GC13270

Congo Red

Also known as disodium;4-amino-3-[[4-[4-[(1-amino-4-sulfonatonaphthalen-2-yl)diazenyl]phenyl]phenyl]diazenyl]naphthalene-1-sulfonate

Congo Red (catalogue number GC13270) is a research-grade chemical available from LABO Scientific in Israel, CAS registry number 573-58-0. Molecular formula C32H22N6Na2O6S2, molecular weight 696.66. IUPAC name: disodium;4-amino-3-[[4-[4-[(1-amino-4-sulfonatonaphthalen-2-yl)diazenyl]phenyl]phenyl]diazenyl]naphthalene-1-sulfonate. Supplied as 50mg at ₪155.00; the final price is confirmed on your quote, and the lot certificate of analysis and safety data sheet are emailed with your order confirmation.

ChemicalCAS573-58-0MW696.66FormulaC32H22N6Na2O6S2
CAS number
573-58-0
Molecular weight
696.66
Formula
C32H22N6Na2O6S2
Solubility
DMSO ： 20 mg/mL (28·71 mM; Need ultrasonic); H2O ： < 0·1 mg/mL (insoluble)
InChIKey
IQFVPQOLBLOTPF-UHFFFAOYSA-L
Catalogue number
GC13270
Brand
GLPBIO
Computed properties PubChem CID 11313 · TPSA 233 Ų · H-bond donors 2 · H-bond acceptors 12
TPSA
233 Ų
H-bond donors
2
H-bond acceptors
12
Rotatable bonds
5
Heavy atoms
48

SMILES C1=CC=C2C(=C1)C(=CC(=C2N)N=NC3=CC=C(C=C3)C4=CC=C(C=C4)N=NC5=C(C6=CC=CC=C6C(=C5)S(=O)(=O)[O-])N)S(=O)(=O)[O-].[Na+].[Na+]

Computed descriptors from PubChem (CID 11313), 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.