4-(3-Ethoxy-4-hydroxyphenyl)-3,7,7-trimethyl-2H,4H,5H,6H,7H,8H,9H-pyrazolo[3,4-b]quinolin-5-one CAS 866018-96-4

Purity 97%+In StockPharmaceutical Standards
CAS No.866018-96-4
Molecular FormulaC21H25N3O3
Molecular Weight367.44 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

4-(3-Ethoxy-4-hydroxyphenyl)-3,7,7-trimethyl-2H,4H,5H,6H,7H,8H,9H-pyrazolo[3,4-b]quinolin-5-one CAS 866018-96-4 chemical structure

Description

4-(3-Ethoxy-4-hydroxyphenyl)-3,7,7-trimethyl-2H,4H,5H,6H,7H,8H,9H-pyrazolo[3,4-b]quinolin-5-one (CAS 866018-96-4) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C21H25N3O3. Molecular weight: 367.44 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.

Physical & Chemical Properties

Molecular FormulaC21H25N3O3
Molecular Weight367.44 g/mol
AppearancePale yellow to yellow crystalline powder
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)11.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1987
Nitrogen Atoms3

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