<SC>L</SC>-天冬酰胺-<SUP>13</SUP>C<SUB>4</SUB>,<SUP>15</SUP>N<SUB>2</SUB> CAS 781596-75-6

Purity 97%+In StockPharmaceutical Standards
CAS No.781596-75-6
Molecular Formula[13C]4H8[15N]2O3
Molecular Weight138.08 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

<SC>L</SC>-天冬酰胺-<SUP>13</SUP>C<SUB>4</SUB>,<SUP>15</SUP>N<SUB>2</SUB> CAS 781596-75-6 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.

<SC>L</SC>-天冬酰胺-<SUP>13</SUP>C<SUB>4</SUB>,<SUP>15</SUP>N<SUB>2</SUB> (CAS 781596-75-6) is a high-purity analytical reference standard with the molecular formula [13C]4H8[15N]2O3 and a molecular weight of 138.08 g/mol.

Owing to an organic framework, <SC>L</SC>-天冬酰胺-<SUP>13</SUP>C<SUB>4</SUB>,<SUP>15</SUP>N<SUB>2</SUB> is typically white to off-white liquid. Its solid-state physicochemical attributes — including a molecular weight of 138.08 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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 Formula[13C]4H8[15N]2O3
Molecular Weight138.08 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in methanol, ethanol, DMSO, water
StabilityLight-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)-1.5
CAS Registry Year (est.)1986
Nitrogen Atoms1

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