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Diagnostic & Clinical ReagentsAvailable on request

Phenolphthalein, indicator solution

Synonyms: 3,3-Bis(4-hydroxyphenyl)-1(3H)-isobenzofuranone · Phthalin · Koprol · Spulmako-lax

CAS No.77-09-8
FormulaC20H14O4
Mol. weight318.30
Catalogue No.VQ-003627
PurityOn COA
HSN38229090

Phenolphthalein, indicator solution (CAS 77-09-8) – diagnostic reagent. C20H14O4, MW 318.3. Supplied by Vaqora Chemicals with COA, exported worldwide.

Pack sizesPrice on quotation · bulk available
125 mL
500 mL
25 L
Bulk / custom pack · kg to MT
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Batch COA with every lot
16-section GHS SDS
Export to 120+ countries
DG-compliant packing

About Phenolphthalein, indicator solution

Vaqora Chemicals supplies Phenolphthalein, indicator solution, a diagnostic reagent registered under CAS number 77-09-8. Formula C20H14O4, molecular weight 318.3 g/mol. Systematically, it is named 3,3-bis(4-hydroxyphenyl)-2-benzofuran-1-one. Common synonyms include Phthalin and Koprol.

It is supplied as a colourless liquid. Keep the container tightly sealed and store it in a cool, dry area. Under GHS it is labelled “Danger”, so handle it with suitable PPE and consult the SDS.

It is commonly used for clinical chemistry, diagnostic assays, pathology laboratories and indicator for titrations. It is used across academic and industrial research and diagnostics and biotechnology.

We offer Phenolphthalein, indicator solution in 125 mL, 500 mL and 25 L packs with a batch-specific COA, and ship to customers worldwide. A Safety Data Sheet (SDS) and technical specifications are available on request.

Typical applications

  • Clinical chemistry
  • Diagnostic assays
  • Pathology laboratories
  • Indicator for titrations

Industries

Specifications & identifiers

Chemical identifiers
Product namePhenolphthalein, indicator solution
Catalogue No.VQ-003627
CAS Number77-09-8
IUPAC name3,3-bis(4-hydroxyphenyl)-2-benzofuran-1-one
Molecular formulaC20H14O4
Molecular weight318.3 g/mol
Exact mass318.0892
HSN code38229090
InChIKeyKJFMBFZCATUALV-UHFFFAOYSA-N
SMILESC1=CC=C2C(=C1)C(=O)OC2(C3=CC=C(C=C3)O)C4=CC=C(C=C4)O
PubChem CID4764
Physical properties
Physical formSolution
AppearanceColourless liquid
LogP (XLogP3)3.6
H-bond donors / acceptors2 / 4
TPSA66.8 Ų
Synonyms3,3-Bis(4-hydroxyphenyl)-1(3H)-isobenzofuranone, Phthalin, Koprol, Spulmako-lax, Dihydroxyphthalophenone, Phenolphtaleine, Correctol, Laxin, 3,3-Bis(4-hydroxyphenyl)phthalide, Fenolftalein, 1(3H)-Isobenzofuranone, 3,3-bis(4-hydroxyphenyl)-, 3,3-Bis(p-hydroxyphenyl)phthalide

Safety & hazard information (GHS)

GHS08 Health hazard
Health hazard

Signal word: Danger

Hazard statements

  • H341Suspected of causing genetic defects
  • H350May cause cancer

Precautionary statements: P203, P280, P318, P405, P501

Classification is indicative (aggregated GHS notifications) and may vary by grade and concentration. Always refer to the SDS supplied with your lot.

Documents

Other grades of CAS 77-09-8

Frequently asked questions

What is the CAS number of Phenolphthalein, indicator solution?

The CAS Registry Number of Phenolphthalein, indicator solution is 77-09-8. It is also known as 3,3-Bis(4-hydroxyphenyl)-1(3H)-isobenzofuranone, Phthalin, Koprol.

What is the molecular formula and molecular weight of Phenolphthalein, indicator solution?

Phenolphthalein, indicator solution has the molecular formula C20H14O4 and a molecular weight of 318.3 g/mol. Its IUPAC name is 3,3-bis(4-hydroxyphenyl)-2-benzofuran-1-one.

Which grade and pack sizes of Phenolphthalein, indicator solution can I order?

We supply Phenolphthalein, indicator solution, in 125 mL, 500 mL, 25 L packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Phenolphthalein, indicator solution?

Yes. Every lot of Phenolphthalein, indicator solution 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 Phenolphthalein, indicator solution be shipped internationally?

Yes. Phenolphthalein, indicator solution is classified as hazardous, so it is packed in UN-approved packaging and shipped as dangerous goods under IATA/IMDG rules. We export worldwide on EXW, FOB, CIF and DAP terms.

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Why buyers choose Vaqora

  • Batch-traceable lots with COA
  • R&D packs to multi-tonne supply
  • IATA / IMDG dangerous-goods packing
  • EXW, FOB, CIF, DAP Incoterms
  • Custom synthesis & sourcing
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