3-(Methylthio)propionaldehyde (CAS 3268-49-3) Comprehensive Buyer’s Guide
Table of Contents
- Product Overview & Specifications
- Key Applications & Industrial Uses
- Technical Comparison with Alternatives
- Operational Best Practices
- Real-World Case Studies
- Supplier Consultation
1. Product Overview & Specifications
| Parameter | Specification |
|---|---|
| CAS Number | 3268-49-3 |
| Molecular Formula | C4H8OS |
| Appearance | Colorless to pale yellow liquid |
| Purity | ≥98% (GC analysis) |
| Flash Point | 62°C (closed cup) |
| Storage Conditions | 2-8°C in amber glass under nitrogen |
2. Key Applications & Industrial Uses
Primary Functional Roles:
- Flavor & Fragrance Intermediate: Key component in meaty/savory flavor formulations
- Agrochemical Precursor: Building block for soil fumigants and nematicides
- Pharmaceutical Intermediate: Chiral synthon in ACE inhibitor production
Industry-Specific Applications:
| Industry | Application Detail |
|---|---|
| Food Additives | Formulation of reaction flavors (0.5-2% concentration range) |
| Crop Protection | Synthesis of dithiocarbamate fungicides |
| Specialty Chemicals | Crosslinking agent in polymer modification |
3. Technical Comparison with Alternatives
| Compound | Reactivity | Odor Threshold | Cost Efficiency |
|---|---|---|---|
| 3-(Methylthio)propionaldehyde | High (thioether linkage) | 0.01 ppb | $$$ |
| Methional | Moderate | 0.05 ppb | $$$$ |
| Dimethyl trisulfide | Low | 0.1 ppb | $$ |
4. Operational Best Practices
Handling Protocols:
- Use closed processing systems with nitrogen blanketing
- Maintain pH between 6.5-7.2 during reactions
- Employ cold traps (-20°C) during distillation processes
Stability Considerations:
| Condition | Stability Duration |
|---|---|
| Ambient Temperature | 72 hours (under inert gas) |
| Refrigerated | 6 months |
| Frozen (-20°C) | 24 months |
5. Real-World Case Studies
Case 1: Flavor Enhancement in Savory Products
- Client: European Seasonings Manufacturer
- Challenge: Replicating natural meat flavor in plant-based alternatives
- Solution: 0.8% incorporation in Maillard reaction systems
- Outcome: 40% reduction in flavor development time
Case 2: Agricultural Fungicide Production
- Client: Asian Agrochemical Company
- Challenge: Improving synthesis yield of dazomet
- Solution: Optimized stoichiometric ratio (1:1.2 with amine)
- Outcome: Yield increased from 68% to 89%
6. Supplier Consultation
For technical specifications sheets or customized formulation support:
Email: info@vivalr.com
Tel: (86) 15866781826
Request Customized Solutions:
- Bulk quantities (200kg+ drum orders)
- GMP-grade material for pharmaceutical use
- Custom stabilization packages



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