85-57-4 U7255OO1G6 2-(4-Hydroxybenzoyl)benzoic acid Benzoic acid, o-(p-hydroxybenzoyl)- Benzoic acid, 2-(4-hydroxybenzoyl)- (9CI) Benzoic acid, 2-(4-hydroxybenzoyl)- 3-10-00-04429 (Beilstein Handbook Reference) AI3-22141 Benzoic acid, p-(p-hydroxybenzoyl)- BRN 2116114 EINECS 201-616-4 Hybenzoate o-(p-Hydroxybenzoyl)benzoic acid NSC 122980 Phthalein acid UNII-U7255OO1G6 CAS 85-57-4

Purity 97%+In StockPharmaceutical Standards
CAS No.85-57-4
Molecular FormulaC14H22O4
Molecular Weight254.32 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

85-57-4 U7255OO1G6 2-(4-Hydroxybenzoyl)benzoic acid Benzoic acid, o-(p-hydroxybenzoyl)- Benzoic acid, 2-(4-hydroxybenzoyl)- (9CI) Benzoic acid, 2-(4-hydroxybenzoyl)- 3-10-00-04429 (Beilstein Handbook Reference) AI3-22141 Benzoic acid, p-(p-hydroxybenzoyl)- BRN 2116114 EINECS 201-616-4 Hybenzoate o-(p-Hydroxybenzoyl)benzoic acid NSC 122980 Phthalein acid UNII-U7255OO1G6 CAS 85-57-4 chemical structure

Description

As a certified reference material (CRM), 85-57-4 U7255OO1G6 2-(4-Hydroxybenzoyl)benzoic acid Benzoic acid, o-(p-hydroxybenzoyl)- Benzoic acid, 2-(4-hydroxybenzoyl)- (9CI) Benzoic acid, 2-(4-hydroxybenzoyl)- 3-10-00-04429 (Beilstein Handbook Reference) AI3-22141 Benzoic acid, p-(p-hydroxybenzoyl)- BRN 2116114 EINECS 201-616-4 Hybenzoate o-(p-Hydroxybenzoyl)benzoic acid NSC 122980 Phthalein acid UNII-U7255OO1G6 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.

CATO supplies 85-57-4 U7255OO1G6 2-(4-Hydroxybenzoyl)benzoic acid Benzoic acid, o-(p-hydroxybenzoyl)- Benzoic acid, 2-(4-hydroxybenzoyl)- (9CI) Benzoic acid, 2-(4-hydroxybenzoyl)- 3-10-00-04429 (Beilstein Handbook Reference) AI3-22141 Benzoic acid, p-(p-hydroxybenzoyl)- BRN 2116114 EINECS 201-616-4 Hybenzoate o-(p-Hydroxybenzoyl)benzoic acid NSC 122980 Phthalein acid UNII-U7255OO1G6 (CAS 85-57-4), a certified reference material (molecular formula C14H22O4, MW 254.32 g/mol) for analytical method development and quality control.

Structurally, 85-57-4 U7255OO1G6 2-(4-Hydroxybenzoyl)benzoic acid Benzoic acid, o-(p-hydroxybenzoyl)- Benzoic acid, 2-(4-hydroxybenzoyl)- (9CI) Benzoic acid, 2-(4-hydroxybenzoyl)- 3-10-00-04429 (Beilstein Handbook Reference) AI3-22141 Benzoic acid, p-(p-hydroxybenzoyl)- BRN 2116114 EINECS 201-616-4 Hybenzoate o-(p-Hydroxybenzoyl)benzoic acid NSC 122980 Phthalein acid UNII-U7255OO1G6 (C14H22O4) contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 254.32 g/mol, it falls into the medium-molecular-weight range. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.

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 FormulaC14H22O4
Molecular Weight254.32 g/mol
AppearanceOff-white to pale yellow crystalline powder
Purity97%+
StorageStore in a cool place (≤25°C), keep sealed and dry
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityMay oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)4.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1957

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