LI74H4DD8X A80OP59PIG LTP4ZS35DJ S75YD33U2H 94I49D1SZD 78274-32-5 Methoxypolyethylene glycol succinimidylsuccinate Poly(oxy-1,2-ethanediyl), alpha-(4-((2,5-dioxo-1-pyrrolidinyl)oxy)-1,4-dioxobutyl)-omega-methoxy ss-Peg UNII-LI74H4DD8X UNII-A80OP59PIG UNII-LTP4ZS35DJ UNII-S75YD33U2H UNII-94I49D1SZD CAS 78274-32-5

Purity 97%+In StockPharmaceutical Standards
CAS No.78274-32-5
Molecular FormulaC11H15NO7
Molecular Weight273.24 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

LI74H4DD8X A80OP59PIG LTP4ZS35DJ S75YD33U2H 94I49D1SZD 78274-32-5 Methoxypolyethylene glycol succinimidylsuccinate Poly(oxy-1,2-ethanediyl), alpha-(4-((2,5-dioxo-1-pyrrolidinyl)oxy)-1,4-dioxobutyl)-omega-methoxy ss-Peg UNII-LI74H4DD8X UNII-A80OP59PIG UNII-LTP4ZS35DJ UNII-S75YD33U2H UNII-94I49D1SZD CAS 78274-32-5 chemical structure

Description

The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.

LI74H4DD8X A80OP59PIG LTP4ZS35DJ S75YD33U2H 94I49D1SZD 78274-32-5 Methoxypolyethylene glycol succinimidylsuccinate Poly(oxy-1,2-ethanediyl), alpha-(4-((2,5-dioxo-1-pyrrolidinyl)oxy)-1,4-dioxobutyl)-omega-methoxy ss-Peg UNII-LI74H4DD8X UNII-A80OP59PIG UNII-LTP4ZS35DJ UNII-S75YD33U2H UNII-94I49D1SZD (CAS 78274-32-5) is a high-purity analytical reference standard with the molecular formula C11H15NO7 and a molecular weight of 273.24 g/mol.

Structurally, LI74H4DD8X A80OP59PIG LTP4ZS35DJ S75YD33U2H 94I49D1SZD 78274-32-5 Methoxypolyethylene glycol succinimidylsuccinate Poly(oxy-1,2-ethanediyl), alpha-(4-((2,5-dioxo-1-pyrrolidinyl)oxy)-1,4-dioxobutyl)-omega-methoxy ss-Peg UNII-LI74H4DD8X UNII-A80OP59PIG UNII-LTP4ZS35DJ UNII-S75YD33U2H UNII-94I49D1SZD (C11H15NO7) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 273.24 g/mol, it falls into the medium-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

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.

Physical & Chemical Properties

Molecular FormulaC11H15NO7
Molecular Weight273.24 g/mol
AppearanceOff-white to pale yellow crystalline powder
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in methanol, ethanol, DMSO
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)5.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1979
Nitrogen Atoms1

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