L-Phenylalanine D8

Name: L-Phenylalanine D8
Brand: Vaqora Chemicals
SKU: VQ-035802

About L-Phenylalanine D8

L-Phenylalanine D8 (CAS 17942-32-4) is a stable isotope labelled analogue related to Aspartame offered by Vaqora Chemicals. The compound has the formula C9H11NO2, corresponding to a molecular weight of 173.24 g/mol. Its systematic (IUPAC) name is (2S)-2-amino-2,3,3-trideuterio-3-(2,3,4,5,6-pentadeuteriophenyl)propanoic acid. Common synonyms include L-Phenyl-d5-alanine-2,3,3 D3 and L-Phenyl-d5-alanine-2,3,3-d3.

The product is provided as a solid. Store the standard in its sealed vial, protected from light and moisture, and follow the storage condition printed on the COA. Handle it with standard laboratory precautions and appropriate personal protective equipment.

Its mass shift relative to the unlabelled analyte makes it a dependable internal standard for LC-MS/MS assays, improving accuracy in bioanalysis, therapeutic drug monitoring and method validation. It is used across pharmaceutical manufacturing and academic and industrial research.

We offer L-Phenylalanine D8 in 10 mg, 25 mg, 50 mg and 100 mg packs with a batch-specific COA, and ship to customers worldwide.

Typical applications

LC-MS/MS internal standard
Bioanalytical quantitation
Pharmacokinetic studies

Industries

Related to Aspartame

View every impurity, metabolite and intermediate we list for Aspartame.

Aspartame impurities

Grade guides

Specifications & identifiers

Chemical identifiers
Product name	L-Phenylalanine D8
Catalogue No.	VQ-035802
CAS Number	17942-32-4
IUPAC name	(2S)-2-amino-2,3,3-trideuterio-3-(2,3,4,5,6-pentadeuteriophenyl)propanoic acid
Molecular formula	C₉H₁₁NO₂
Molecular weight	173.24 g/mol
Exact mass	173.1292
Grade	Reference Standard
HSN code	38229090
InChIKey	COLNVLDHVKWLRT-WYMAAGAPSA-N
SMILES	[2H]C1=C(C(=C(C(=C1[2H])[2H])C([2H])([2H])[C@@]([2H])(C(=O)O)N)[2H])[2H]
PubChem CID	13000987

Physical properties
Physical form	Solid
LogP (XLogP3)	-1.5
H-bond donors / acceptors	2 / 3
TPSA	63.3 Å²

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Frequently asked questions

What is the CAS number of L-Phenylalanine D8?

The CAS Registry Number of L-Phenylalanine D8 is 17942-32-4. It is also known as L-Phenyl-d5-alanine-2,3,3 D3, L-Phenyl-d5-alanine-2,3,3-d3, TMID-0366.

What is the molecular formula and molecular weight of L-Phenylalanine D8?

L-Phenylalanine D8 has the molecular formula C9H11NO2 and a molecular weight of 173.24 g/mol. Its IUPAC name is (2S)-2-amino-2,3,3-trideuterio-3-(2,3,4,5,6-pentadeuteriophenyl)propanoic acid.

What is L-Phenylalanine D8 used for?

L-Phenylalanine D8 is supplied as a characterised reference material related to Aspartame. It is used for analytical method development and validation (AMV), impurity profiling, stability studies and quality control, and in ANDA/DMF regulatory filings.

Which grade and pack sizes of L-Phenylalanine D8 can I order?

We supply L-Phenylalanine D8 in Reference Standard grade, in 10 mg, 25 mg, 50 mg, 100 mg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with L-Phenylalanine D8?

Yes. Every lot of L-Phenylalanine D8 is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can L-Phenylalanine D8 be shipped internationally?

Yes. We export L-Phenylalanine D8 worldwide by air and sea freight or express courier, on EXW, FOB, CIF, CFR or DAP Incoterms, with full export documentation.