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R-11141

Propionic Acid (d3)

Stable isotope standard for analytical research and method development.

Module Type
Stable Isotope Standards
Category
Metabolites
CAS
55577-88-3
Unlabeled CAS
79-09-4
PubChem CID
10510806
Molecular Formula
C3H3D3O2
Molecular Weight
77.1
AI Isotope Property & Application AnalysisShow

Isotope Summary

Labels
D3
Labeled atoms
3
Isotope positions
Confirmed in structure
Calculation reliability
High, based on explicit isotope structure

Mass & MS Parameters

Unlabeled exact mass
74.036779 Da
Labeled exact mass
77.05561 Da
Exact mass shift
3.01883 Da
Nominal mass shift
3
Ionm/zStatus
[M+H]+78.062886Theoretical
[M+Na]+100.044828Theoretical
[M+NH4]+95.089433Theoretical
[M-H]-76.048333Theoretical

Label Stability

Overall
Low risk
Calculation reliability
Medium, some information should be confirmed
  • Carbon-bound deuterium is evaluated by local chemical environment; isotope effects should still be checked experimentally.

Internal Standard Suitability

Rating
High
Chromatographic similarity
Possible isotope effect
Natural isotope overlap
Low
  • Exact mass separation is 3.01883 Da; MS channel separation should be verified in the final method.
  • The unlabeled parent mass was derived from the isotope structure because a curated parent structure was not matched.
  • Overall suitability: High.

Recommended Applications

LC-MS/MS Quantitative Internal Standard
Recommended

LC-MS/MS Quantitative Internal Standard is classified as Recommended based on isotope mapping, mass separation, and label-stability rules.

Isotope Dilution Mass Spectrometry
Recommended

Isotope Dilution Mass Spectrometry is classified as Recommended based on isotope mapping, mass separation, and label-stability rules.

GC-MS Internal Standard
Possible

GC-MS Internal Standard is classified as Possible based on isotope mapping, mass separation, and label-stability rules.

Bioanalytical Method Development
Recommended

Bioanalytical Method Development is classified as Recommended based on isotope mapping, mass separation, and label-stability rules.

AI Interpretation

This analysis is based on isotope-aware structure data. The compound contains D3, with an exact mass shift of 3.01883 Da. Label stability is assessed as Low risk, and internal-standard suitability is High. These results support analytical method development and require experimental validation.

AI-assisted analytical guidance is intended for method-development support. Actual isotope stability, chromatographic behavior, fragmentation and MRM transitions should be experimentally validated.