NHS-dPEG<SUP>®</SUP><SUB>4</SUB>-( m-dPEG<SUP>®</SUP><SUB>12</SUB>)<SUB>3</SUB>- ester CAS 1334178-03-8

Purity 97%+In StockPharmaceutical Standards
CAS No.1334178-03-8
Molecular FormulaC108H206N6O52
Molecular Weight2420.80 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

NHS-dPEG<SUP>®</SUP><SUB>4</SUB>-( m-dPEG<SUP>®</SUP><SUB>12</SUB>)<SUB>3</SUB>- ester CAS 1334178-03-8 chemical structure

Description

Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including NHS-dPEG<SUP>®</SUP><SUB>4</SUB>-( m-dPEG<SUP>®</SUP><SUB>12</SUB>)<SUB>3</SUB>- ester.

NHS-dPEG<SUP>®</SUP><SUB>4</SUB>-( m-dPEG<SUP>®</SUP><SUB>12</SUB>)<SUB>3</SUB>- ester (CAS 1334178-03-8), molecular formula C108H206N6O52 and molecular weight 2420.80 g/mol, is a CATO reference standard with documented purity and traceability.

Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, NHS-dPEG<SUP>®</SUP><SUB>4</SUB>-( m-dPEG<SUP>®</SUP><SUB>12</SUB>)<SUB>3</SUB>- ester is typically pale yellow to yellow amorphous powder. Its solid-state physicochemical attributes — including a molecular weight of 2420.80 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).

Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.

As a certified reference material (CRM), NHS-dPEG<SUP>®</SUP><SUB>4</SUB>-( m-dPEG<SUP>®</SUP><SUB>12</SUB>)<SUB>3</SUB>- ester meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.

Physical & Chemical Properties

Molecular FormulaC108H206N6O52
Molecular Weight2420.80 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)9.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1991
Nitrogen Atoms6

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