o-Cresolphthalein

Name: o-Cresolphthalein
Brand: Vaqora Chemicals
SKU: VQ-000660

About o-Cresolphthalein

o-Cresolphthalein is a biological stain carrying the CAS registry number 596-27-0. Its molecular formula is C22H18O4 and its molecular weight is 346.4 g/mol. Systematically, it is named 3,3-bis(4-hydroxy-3-methylphenyl)-2-benzofuran-1-one. It is also known as Cresolphthalein or 3,3'-Dimethylphenolphthalein.

In its supplied form it is a light brown powder. Key physical data: a melting point of 219-223 °C. Store sealed in a dry, well-ventilated location away from incompatible materials. Handle it with standard laboratory precautions and appropriate personal protective equipment.

Typical applications include histology and cytology staining, microscopy, clinical laboratories and analytical determinations. Our customers for this product work in academic and industrial research, diagnostics and biotechnology and textiles and dyeing.

Available in 5 g, 25 g, 100 g and 500 g packs, o-Cresolphthalein is dispatched with a Certificate of Analysis (COA) to destinations worldwide.

Typical applications

Histology & cytology staining
Microscopy
Clinical laboratories
Analytical determinations

Industries

Specifications & identifiers

Chemical identifiers
Product name	o-Cresolphthalein
Catalogue No.	VQ-000660
CAS Number	596-27-0
IUPAC name	3,3-bis(4-hydroxy-3-methylphenyl)-2-benzofuran-1-one
Molecular formula	C₂₂H₁₈O₄
Molecular weight	346.4 g/mol
Exact mass	346.1205
HSN code	29349900
InChIKey	CPBJMKMKNCRKQB-UHFFFAOYSA-N
SMILES	CC1=C(C=CC(=C1)C2(C3=CC=CC=C3C(=O)O2)C4=CC(=C(C=C4)O)C)O
PubChem CID	68995

Physical properties
Physical form	Powder
Appearance	Light brown powder
Melting point	219-223 °C
LogP (XLogP3)	4.5
H-bond donors / acceptors	2 / 4
TPSA	66.8 Å²
Synonyms	3,3-Bis(4-hydroxy-3-methylphenyl)-1(3H)-isobenzofuranone, Cresolphthalein, 1(3H)-Isobenzofuranone, 3,3-bis(4-hydroxy-3-methylphenyl)-, 3,3'-Dimethylphenolphthalein, 3,3-Bis(4-hydroxy-3-methylphenyl)isobenzofuran-1(3H)-one, 3',3''-Dimethylphenolphthalein, Phenolphthalein, 3',3''-dimethyl-, AO/854, o-Cresolphthalein (0.04% in ca. 95% Ethanol) [for pH Determination], 3,3-bis(4-hydroxy-3-methylphenyl)-3-hydroisobenzofuran-1-one, 3,3-bis(4-hydroxy-3-methyl-phenyl)isobenzofuran-1-one, o-Cresolphthalein, indicator grade

Documents

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

Other grades of CAS 596-27-0

AR

o-Cresolphthalein, AR

CAS: 596-27-0
Formula: C₂₂H₁₈O₄
MW: 346.4 g/mol

VQ-045992

Frequently asked questions

What is the CAS number of o-Cresolphthalein?

The CAS Registry Number of o-Cresolphthalein is 596-27-0. It is also known as 3,3-Bis(4-hydroxy-3-methylphenyl)-1(3H)-isobenzofuranone, Cresolphthalein, 1(3H)-Isobenzofuranone, 3,3-bis(4-hydroxy-3-methylphenyl)-.

What is the molecular formula and molecular weight of o-Cresolphthalein?

o-Cresolphthalein has the molecular formula C22H18O4 and a molecular weight of 346.4 g/mol. Its IUPAC name is 3,3-bis(4-hydroxy-3-methylphenyl)-2-benzofuran-1-one.

Which grade and pack sizes of o-Cresolphthalein can I order?

We supply o-Cresolphthalein, in 5 g, 25 g, 100 g, 500 g, 5 kg, 4 x 25 kg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with o-Cresolphthalein?

Yes. Every lot of o-Cresolphthalein 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 o-Cresolphthalein be shipped internationally?

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