596-27-0 XOU2D9049G Cresolphthalein o-Cresolphthalein 3,3-Bis(4-hydroxy-m-tolyl)phthalide 1(3H)-Isobenzofuranone, 3,3-bis(4-hydroxy-3-methylphenyl)- Phenolphthalein, 3',3''-dimethyl- 5-18-04-00193 (Beilstein Handbook Reference) BRN 0310554 3',3''-Dimethylphenolphthalein EINECS 209-881-8 UNII-XOU2D9049G CAS 596-27-0

Purity 97%+In StockPharmaceutical Standards
CAS No.596-27-0
Molecular FormulaC22H36O4
Molecular Weight364.52 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

596-27-0 XOU2D9049G Cresolphthalein o-Cresolphthalein 3,3-Bis(4-hydroxy-m-tolyl)phthalide 1(3H)-Isobenzofuranone, 3,3-bis(4-hydroxy-3-methylphenyl)- Phenolphthalein, 3',3''-dimethyl- 5-18-04-00193 (Beilstein Handbook Reference) BRN 0310554 3',3''-Dimethylphenolphthalein EINECS 209-881-8 UNII-XOU2D9049G CAS 596-27-0 chemical structure

Description

CATO manufactures 596-27-0 XOU2D9049G Cresolphthalein o-Cresolphthalein 3,3-Bis(4-hydroxy-m-tolyl)phthalide 1(3H)-Isobenzofuranone, 3,3-bis(4-hydroxy-3-methylphenyl)- Phenolphthalein, 3',3''-dimethyl- 5-18-04-00193 (Beilstein Handbook Reference) BRN 0310554 3',3''-Dimethylphenolphthalein EINECS 209-881-8 UNII-XOU2D9049G under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.

596-27-0 XOU2D9049G Cresolphthalein o-Cresolphthalein 3,3-Bis(4-hydroxy-m-tolyl)phthalide 1(3H)-Isobenzofuranone, 3,3-bis(4-hydroxy-3-methylphenyl)- Phenolphthalein, 3',3''-dimethyl- 5-18-04-00193 (Beilstein Handbook Reference) BRN 0310554 3',3''-Dimethylphenolphthalein EINECS 209-881-8 UNII-XOU2D9049G (CAS 596-27-0) is a high-purity analytical reference standard with the molecular formula C22H36O4 and a molecular weight of 364.52 g/mol.

Owing to a steroid core, a hydroxyl group, an ether linkage, 596-27-0 XOU2D9049G Cresolphthalein o-Cresolphthalein 3,3-Bis(4-hydroxy-m-tolyl)phthalide 1(3H)-Isobenzofuranone, 3,3-bis(4-hydroxy-3-methylphenyl)- Phenolphthalein, 3',3''-dimethyl- 5-18-04-00193 (Beilstein Handbook Reference) BRN 0310554 3',3''-Dimethylphenolphthalein EINECS 209-881-8 UNII-XOU2D9049G is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 364.52 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.

Physical & Chemical Properties

Molecular FormulaC22H36O4
Molecular Weight364.52 g/mol
AppearanceOff-white to pale yellow crystalline powder
Purity97%+
StorageStore at room temperature, keep sealed and dry
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityMay oxidize slowly on prolonged air exposure
Degree of Unsaturation (DBE)5.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1957

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