Synonyms: "phenolsulfonphthalein", "fenolipuna", "sulfonphthal", "sulphental", "sulphonthal", "phenolsulphonphthalein", "PSP"
Source: phenol red, also known as phenolsulfonphthalein or PSP, is a pH indicator that is frequently used in cell biology laboratories.
IUPAC Name: 4-[3-(4-hydroxyphenyl)-1,1-dioxo-2,1?6-benzoxathiol-3-yl]phenol
CAS Number: 143-74-8
PubChem ID: 4766
Canonical SMILES: C1=CC=C2C(=C1)C(OS2(=O)=O)(C3=CC=C(C=C3)O)C4=CC=C(C=C4)O
Molecular Formula: C19H14O5S
Molecular Weight: 354,376
Number of bond donors: 2
Number of bond acceptors: 4
Number of atoms different from hydrogen: 25
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