L-Phenylalanine-<SUP>13</SUP>C<SUB>9</SUB> CAS 439685-11-7

Purity 97%+In StockPharmaceutical Standards
CAS No.439685-11-7
Molecular Formula[13C]9H11NO2
Molecular Weight174.12 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

L-Phenylalanine-<SUP>13</SUP>C<SUB>9</SUB> CAS 439685-11-7 chemical structure

Description

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

L-Phenylalanine-<SUP>13</SUP>C<SUB>9</SUB> (CAS 439685-11-7) is a high-purity analytical reference standard with the molecular formula [13C]9H11NO2 and a molecular weight of 174.12 g/mol.

Based on its molecular formula [13C]9H11NO2, L-Phenylalanine-<SUP>13</SUP>C<SUB>9</SUB> contains an organic framework; these features give the compound characteristic functional-group stretching vibrations in infrared spectroscopy. The molecular weight of 174.12 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

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.

Physical & Chemical Properties

Molecular Formula[13C]9H11NO2
Molecular Weight174.12 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in methanol, acetonitrile, DMSO
StabilityLight-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)-3.0
CAS Registry Year (est.)2025
Nitrogen Atoms1

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