L-Tyrosine-13C9 CAS 55443-60-2

Purity >95%In StockPharmaceutical Standards
CAS No.55443-60-2
Molecular Formula[13C]9H11NO3
Molecular Weight190.12 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

L-Tyrosine-13C9 CAS 55443-60-2 chemical structure

Description

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.

L-Tyrosine-13C9 (CAS 55443-60-2) is a high-purity analytical reference standard with the molecular formula [13C]9H11NO3 and a molecular weight of 190.12 g/mol.

Structurally, L-Tyrosine-13C9 ([13C]9H11NO3) contains an organic framework. The molecule exhibits a degree of unsaturation (DBE) of -3.0, corresponding to approximately 0 ring(s) or double-bond equivalent(s). With a molecular weight of 190.12 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.

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]9H11NO3
Molecular Weight190.12 g/mol
Purity>95%
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)-3.0
CAS Registry Year (est.)1972
Nitrogen Atoms1

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