(a1S,a4S,a8S)-α,a',a''-Tris[bis[2-(1,1-dimethylethoxy)-2-oxoethyl]amino]-d,d',d''-trioxo-1,4,8,11-tetraazacyclotetradecane-1,4,8-tripentanoic Acid 1,4,8-Tris(1,1-dimethylethyl) Ester CAS 862778-56-1

Purity 97%+In StockPharmaceutical Standards
CAS No.862778-56-1
Molecular FormulaC73H129N7O21
Molecular Weight1440.84 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

(a1S,a4S,a8S)-α,a',a''-Tris[bis[2-(1,1-dimethylethoxy)-2-oxoethyl]amino]-d,d',d''-trioxo-1,4,8,11-tetraazacyclotetradecane-1,4,8-tripentanoic Acid 1,4,8-Tris(1,1-dimethylethyl) Ester CAS 862778-56-1 chemical structure

Description

(a1S,a4S,a8S)-α,a',a''-Tris[bis[2-(1,1-dimethylethoxy)-2-oxoethyl]amino]-d,d',d''-trioxo-1,4,8,11-tetraazacyclotetradecane-1,4,8-tripentanoic Acid 1,4,8-Tris(1,1-dimethylethyl) Ester (C73H129N7O21) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

(a1S,a4S,a8S)-α,a',a''-Tris[bis[2-(1,1-dimethylethoxy)-2-oxoethyl]amino]-d,d',d''-trioxo-1,4,8,11-tetraazacyclotetradecane-1,4,8-tripentanoic Acid 1,4,8-Tris(1,1-dimethylethyl) Ester (CAS 862778-56-1), molecular formula C73H129N7O21 and molecular weight 1440.84 g/mol, is a CATO reference standard with documented purity and traceability.

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.

CATO manufactures (a1S,a4S,a8S)-α,a',a''-Tris[bis[2-(1,1-dimethylethoxy)-2-oxoethyl]amino]-d,d',d''-trioxo-1,4,8,11-tetraazacyclotetradecane-1,4,8-tripentanoic Acid 1,4,8-Tris(1,1-dimethylethyl) Ester 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 FormulaC73H129N7O21
Molecular Weight1440.84 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)13.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1987
Nitrogen Atoms7

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