5-((6-((E)-3-(5-((2R,4S,5R)-5-((Bis(4-methoxyphenyl)(phenyl)methoxy)methyl)-4-(((2-cyanoethoxy)(diisopropylamino)phosphino)oxy)tetrahydrofuran-2-yl)-2,4-dioxo-3,4-dihydropyrimidin-1(2H)-yl)acrylamido)hexyl)carbamoyl)-3-oxo-3H-spiro[isobenzofuran-1,9'-xanthene]-3',6'-diyl bis(2,2-dimethylpropanoate) CAS 289712-99-8

Purity 97%+In StockPharmaceutical Standards
CAS No.289712-99-8
Molecular FormulaC79H89N6O17P
Molecular Weight1425.56 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

5-((6-((E)-3-(5-((2R,4S,5R)-5-((Bis(4-methoxyphenyl)(phenyl)methoxy)methyl)-4-(((2-cyanoethoxy)(diisopropylamino)phosphino)oxy)tetrahydrofuran-2-yl)-2,4-dioxo-3,4-dihydropyrimidin-1(2H)-yl)acrylamido)hexyl)carbamoyl)-3-oxo-3H-spiro[isobenzofuran-1,9'-xanthene]-3',6'-diyl bis(2,2-dimethylpropanoate) CAS 289712-99-8 chemical structure

Description

5-((6-((E)-3-(5-((2R,4S,5R)-5-((Bis(4-methoxyphenyl)(phenyl)methoxy)methyl)-4-(((2-cyanoethoxy)(diisopropylamino)phosphino)oxy)tetrahydrofuran-2-yl)-2,4-dioxo-3,4-dihydropyrimidin-1(2H)-yl)acrylamido)hexyl)carbamoyl)-3-oxo-3H-spiro[isobenzofuran-1,9'-xanthene]-3',6'-diyl bis(2,2-dimethylpropanoate) (CAS 289712-99-8) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C79H89N6O17P. Molecular weight: 1425.56 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.

Physical & Chemical Properties

Molecular FormulaC79H89N6O17P
Molecular Weight1425.56 g/mol
Purity97%+
StorageStore in a cool place (≤25°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)38.5
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2025
Nitrogen Atoms6

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