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Chemical structure of Phenolphthalein

GC30678

Phenolphthalein

Also known as 3,3-bis(4-hydroxyphenyl)-2-benzofuran-1-one

Phenolphthalein is a widely applied but toxic indicator dye

ChemicalCAS77-09-8MW318.32FormulaC20H14O4
CAS number
77-09-8
Molecular weight
318.32
Formula
C20H14O4
Solubility
DMSO ： 100 mg/mL (314·15 mM)
InChIKey
KJFMBFZCATUALV-UHFFFAOYSA-N
Catalogue number
GC30678
Brand
GLPBIO
Computed properties PubChem CID 4764 · XLogP 3.6 · TPSA 66.8 Ų · H-bond donors 2
XLogP
3.6
TPSA
66.8 Ų
H-bond donors
2
H-bond acceptors
4
Rotatable bonds
2
Heavy atoms
24

SMILES C1=CC=C2C(=C1)C(=O)OC2(C3=CC=C(C=C3)O)C4=CC=C(C=C4)O

Computed descriptors from PubChem (CID 4764), 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.