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Chemical structure of Phenol red sodium

GC30235

Phenol red sodium

Also listed as Phenol Red sodium salt (Phenolsulfonephthalein sodium salt)

Phenol red (Phenolsulfonephthalein) sodium salt is a pH indicator dye, relying on a distinct color change from pink to yellow in case of a positive reaction

ChemicalCAS34487-61-1MW376.36FormulaC19H13NaO5S
CAS number
34487-61-1
Molecular weight
376.36
Formula
C19H13NaO5S
Solubility
Water : ≥ 100 mg/mL (265·70 mM)
InChIKey
RBFZWTMVVUVHLM-UHFFFAOYSA-M
Catalogue number
GC30235
Brand
GLPBIO
Computed properties PubChem CID 4013450 · TPSA 103 Ų · H-bond donors 1 · H-bond acceptors 5
TPSA
103 Ų
H-bond donors
1
H-bond acceptors
5
Rotatable bonds
3
Heavy atoms
26

SMILES C1=CC=C(C(=C1)C(=C2C=CC(=O)C=C2)C3=CC=C(C=C3)O)S(=O)(=O)[O-].[Na+]

Computed descriptors from PubChem (CID 4013450), 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.