Phenolththalein disodium salt

Name: Phenolththalein disodium salt
Brand: Vaqora Chemicals
SKU: VQ-002549

About Phenolththalein disodium salt

Phenolththalein disodium salt (CAS 518-51-4) is a carbohydrate offered by Vaqora Chemicals at a purity of ≥90%. With the molecular formula C20H12Na2O4, it has a molar mass of 362.3 g/mol. The IUPAC name is disodium, 2-[(4-oxidophenyl)-(4-oxocyclohexa-2,5-dien-1-ylidene)methyl]benzoate. It is also known as Phenolphthalein sodium or Phenolphthalein disodium salt.

The material typically appears as a dark brown to dark purple solid. Keep the container tightly sealed and store it in a cool, dry area. Handle it with standard laboratory precautions and appropriate personal protective equipment.

Typical applications include glycobiology research, microbiology media and biochemical assays. It is used across academic and industrial research and diagnostics and biotechnology.

Standard pack sizes are 25 g and 100 g, and every batch ships with a Certificate of Analysis (COA) and we export worldwide.

Typical applications

Glycobiology research
Microbiology media
Biochemical assays

Industries

Specifications & identifiers

Chemical identifiers
Product name	Phenolththalein disodium salt
Catalogue No.	VQ-002549
CAS Number	518-51-4
IUPAC name	disodium;2-[(4-oxidophenyl)-(4-oxocyclohexa-2,5-dien-1-ylidene)methyl]benzoate
Molecular formula	C₂₀H₁₂Na₂O₄
Molecular weight	362.3 g/mol
Exact mass	362.0531
Purity / assay	≥90%
HSN code	29420090
InChIKey	HAWFSFZXNWBZRU-UHFFFAOYSA-L
SMILES	C1=CC=C(C(=C1)C(=C2C=CC(=O)C=C2)C3=CC=C(C=C3)[O-])C(=O)[O-].[Na+].[Na+]
PubChem CID	2735116

Physical properties
Physical form	Solid
Appearance	Dark brown to dark purple solid
H-bond donors / acceptors	0 / 4
TPSA	80.3 Å²
Synonyms	Phenolphthalein sodium, 1(3H)Isobenzofuranone, 3,3bis(4hydroxyphenyl), disodium salt, 1(3H)Isobenzofuranone, 3,3bis(4hydroxyphenyl), sodium salt (1:2), Phenolphthalein disodium salt, 1(3H)-Isobenzofuranone, 3,3-bis(4-hydroxyphenyl)-, sodium salt (1:2), Phenolphthaleinnatrium, phenolphthalein sodium salt, Sodium 2-((4-oxidophenyl)(4-oxocyclohexa-2,5-dien-1-ylidene)methyl)benzoate

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Frequently asked questions

What is the CAS number of Phenolththalein disodium salt?

The CAS Registry Number of Phenolththalein disodium salt is 518-51-4. It is also known as Phenolphthalein sodium, 1(3H)Isobenzofuranone, 3,3bis(4hydroxyphenyl), disodium salt, 1(3H)Isobenzofuranone, 3,3bis(4hydroxyphenyl), sodium salt (1:2).

What is the molecular formula and molecular weight of Phenolththalein disodium salt?

Phenolththalein disodium salt has the molecular formula C20H12Na2O4 and a molecular weight of 362.3 g/mol.

Which grade and pack sizes of Phenolththalein disodium salt can I order?

We supply Phenolththalein disodium salt in (≥90%) grade, in 25 g, 100 g packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Phenolththalein disodium salt?

Yes. Every lot of Phenolththalein disodium salt is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can Phenolththalein disodium salt be shipped internationally?

Yes. We export Phenolththalein disodium salt worldwide by air and sea freight or express courier, on EXW, FOB, CIF, CFR or DAP Incoterms, with full export documentation.