Loading...
Chemical structure of Eriochrome blue-black B (C·I· 14640), metal indicator

GB58375

Eriochrome blue-black B (C·I· 14640), metal indicator

Also known as sodium 3-hydroxy-4-[(1-hydroxynaphthalen-2-yl)diazenyl]naphthalene-1-sulfonate

Eriochrome blue-black B (C·I· 14640), metal indicator (catalogue number GB58375) is a research-grade chemical available from LABO Scientific in Israel, CAS registry number 3564-14-5. Molecular formula C20H13N2NaO5S, molecular weight 416.38. IUPAC name: sodium 3-hydroxy-4-[(1-hydroxynaphthalen-2-yl)diazenyl]naphthalene-1-sulfonate. Supplied as 100g at ₪281.45; the final price is confirmed on your quote, and the lot certificate of analysis and safety data sheet are emailed with your order confirmation.

ChemicalCAS3564-14-5MW416.38FormulaC20H13N2NaO5S
CAS number
3564-14-5
Molecular weight
416.38
Formula
C20H13N2NaO5S
InChIKey
HOWITLLZNKSJOJ-UHFFFAOYSA-M
Catalogue number
GB58375
Brand
GLPBIO
Computed properties PubChem CID 135465071 · TPSA 131 Ų · H-bond donors 2 · H-bond acceptors 7
TPSA
131 Ų
H-bond donors
2
H-bond acceptors
7
Rotatable bonds
3
Heavy atoms
29

SMILES C1=CC=C2C(=C1)C=CC(=C2O)N=NC3=C(C=C(C4=CC=CC=C43)S(=O)(=O)[O-])O.[Na+]

Computed descriptors from PubChem (CID 135465071), 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.