723-89-7 1H-Indole-2,3-dione, 1-phenyl- (9CI) Indole-2,3-dione, 1-phenyl- 5-21-10-00247 (Beilstein Handbook Reference) BRN 0164531 NSC 100013 1-Phenyl-1H-indole-2,3-dione 1-Phenyl-indole-2,3-dione 1-Phenylisatin CAS 723-89-7

Purity 97%+In StockPharmaceutical Standards
CAS No.723-89-7
Molecular FormulaC14H9NO2
Molecular Weight223.23 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

723-89-7 1H-Indole-2,3-dione, 1-phenyl- (9CI) Indole-2,3-dione, 1-phenyl- 5-21-10-00247 (Beilstein Handbook Reference) BRN 0164531 NSC 100013 1-Phenyl-1H-indole-2,3-dione 1-Phenyl-indole-2,3-dione 1-Phenylisatin CAS 723-89-7 chemical structure

Description

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.

723-89-7 1H-Indole-2,3-dione, 1-phenyl- (9CI) Indole-2,3-dione, 1-phenyl- 5-21-10-00247 (Beilstein Handbook Reference) BRN 0164531 NSC 100013 1-Phenyl-1H-indole-2,3-dione 1-Phenyl-indole-2,3-dione 1-Phenylisatin (CAS 723-89-7), molecular formula C14H9NO2 and molecular weight 223.23 g/mol, is a CATO reference standard with documented purity and traceability.

Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, 723-89-7 1H-Indole-2,3-dione, 1-phenyl- (9CI) Indole-2,3-dione, 1-phenyl- 5-21-10-00247 (Beilstein Handbook Reference) BRN 0164531 NSC 100013 1-Phenyl-1H-indole-2,3-dione 1-Phenyl-indole-2,3-dione 1-Phenylisatin is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 223.23 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).

CATO manufactures 723-89-7 1H-Indole-2,3-dione, 1-phenyl- (9CI) Indole-2,3-dione, 1-phenyl- 5-21-10-00247 (Beilstein Handbook Reference) BRN 0164531 NSC 100013 1-Phenyl-1H-indole-2,3-dione 1-Phenyl-indole-2,3-dione 1-Phenylisatin 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.

Physical & Chemical Properties

Molecular FormulaC14H9NO2
Molecular Weight223.23 g/mol
AppearancePale yellow to yellow crystalline powder
Purity97%+
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)11.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1957
Nitrogen Atoms1

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