Parameter | Thiobarbituric Acid (TBA) | Barbituric Acid |
---|---|---|
CAS Number | 504-17-6 | 67-52-7 |
Molecular Formula | C4H4N2O2S | C4H4N2O3 |
Molecular Weight | 144.15 g/mol | 128.09 g/mol |
Appearance | White crystalline powder | White crystals |
Key Differentiator | Sulfur atom enables lipid peroxidation detection | Lacks thiocarbonyl group |
Primary use in TBA Reactive Substances (TBARS) assay for measuring oxidative rancidity in:
Challenge: Quantifying malondialdehyde (MDA) levels in processed meats
Solution: TBARS assay with 0.02% TBA solution
Outcome: 94% correlation with sensory evaluation results
Challenge: Monitoring oxidative stress in neurodegenerative studies
Solution: TBA-based fluorescence detection (λex 532nm/λem 553nm)
Outcome: Detection limit reduced to 0.1μM MDA equivalents
Client: EuroFood Analytics GmbH (Hamburg, Germany)
Challenge: Shelf-life prediction for cured meat products
Implementation: Weekly TBARS monitoring protocol
Result: 22% reduction in product returns due to oxidation
Client: NovoSynth Biotech (Shanghai, China)
Challenge: Quantifying API degradation during stability trials
Implementation: Modified TBA-HPLC method (USP <1072> compliance)
Result: Achieved 0.99 method linearity (r²) across 3 logs
Request product specifications or application support:
Available product configurations:
Purity | Packaging | Price Range |
---|---|---|
≥98% (ACS grade) | 25g glass bottle | $45-65 |
≥99% (HPLC grade) | 100g amber vial | $150-180 |
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