83-08-9 Quinophthalone 1H-Indene-1,3(2H)-dione, 2-(2-quinolinyl)- 2-(2-Quinolyl)-1H-indene-1,3(2H)-dione Quinophthalone (VAN) (8CI) 11641 Yellow EINECS 201-453-9 Erio Chinoline Yellow 4G NSC 18950 Quinoline Yellow 2SF 2-(2-Quinolyl)-1,3-indandione 2-(2-Quinolyl)-1,3-indanedione CAS 83-08-9

Purity 97%+In StockPharmaceutical Standards
CAS No.83-08-9
Molecular FormulaC18H11NO2
Molecular Weight273.29 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

83-08-9 Quinophthalone 1H-Indene-1,3(2H)-dione, 2-(2-quinolinyl)- 2-(2-Quinolyl)-1H-indene-1,3(2H)-dione Quinophthalone (VAN) (8CI) 11641 Yellow EINECS 201-453-9 Erio Chinoline Yellow 4G NSC 18950 Quinoline Yellow 2SF 2-(2-Quinolyl)-1,3-indandione 2-(2-Quinolyl)-1,3-indanedione CAS 83-08-9 chemical structure

Description

83-08-9 Quinophthalone 1H-Indene-1,3(2H)-dione, 2-(2-quinolinyl)- 2-(2-Quinolyl)-1H-indene-1,3(2H)-dione Quinophthalone (VAN) (8CI) 11641 Yellow EINECS 201-453-9 Erio Chinoline Yellow 4G NSC 18950 Quinoline Yellow 2SF 2-(2-Quinolyl)-1,3-indandione 2-(2-Quinolyl)-1,3-indanedione (CAS 83-08-9) is a pharmaceutical standards certified reference material from CATO. Molecular formula: C18H11NO2. Molecular weight: 273.29 g/mol. ISO 17034 accredited production ensures traceable purity and reliable analytical results.

Physical & Chemical Properties

Molecular FormulaC18H11NO2
Molecular Weight273.29 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)14.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1957
Nitrogen Atoms1

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