151271-53-3 UK 1 (2,4'-Bibenzoxazole)-4-carboxylic acid, 2'-(2-hydroxyphenyl)-, methyl ester Methyl 2'-(2-hydroxyphenyl)-(2,4'-bibenzoxazole)-4-carboxylate UK-1 CAS 151271-53-3

Purity 97%+In StockPharmaceutical Standards
CAS No.151271-53-3
Molecular FormulaC22H14N2O5
Molecular Weight386.36 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

151271-53-3 UK 1 (2,4'-Bibenzoxazole)-4-carboxylic acid, 2'-(2-hydroxyphenyl)-, methyl ester Methyl 2'-(2-hydroxyphenyl)-(2,4'-bibenzoxazole)-4-carboxylate UK-1 CAS 151271-53-3 chemical structure

Description

151271-53-3 UK 1 (2,4'-Bibenzoxazole)-4-carboxylic acid, 2'-(2-hydroxyphenyl)-, methyl ester Methyl 2'-(2-hydroxyphenyl)-(2,4'-bibenzoxazole)-4-carboxylate UK-1 (CAS 151271-53-3) is a high-purity pharmaceutical standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C22H14N2O5. Molecular weight: 386.36 g/mol. Each batch is supplied with a Certificate of Analysis (COA).

Physical & Chemical Properties

Molecular FormulaC22H14N2O5
Molecular Weight386.36 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)17.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2000
Nitrogen Atoms2

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