Dimethyl Beta-Propiothetin (DMPT)
Flavoring Agents
4337-33-1
C₅H₁₁SO₂Cl
$7.61 ~ $11.42
Food
Free sample from 100g(NF)
One unit of:25kg/barrel
One unit of:25kg/barrel
25kg/barrel
Product Info
What is Dimethyl Beta-Propiothetin (DMPT)?
Dimethyl Beta-Propiothetin (DMPT) is a potent, naturally occurring organosulfur compound widely used in aquaculture as a highly effective feeding stimulant and growth promoter to enhance feed palatability and increase aquatic species productivity.
How is Dimethyl Beta-Propiothetin (DMPT) made?
| Step No. | Production Stage | Key Action | Control Point & Note |
|---|---|---|---|
| 1 | Raw Material Preparation | Measure and prepare high-purity Dimethyl Sulfide (DMS), Acrylic Acid, and an acid catalyst (e.g., Hydrochloric Acid). | Control Point: Purity of all raw materials must be >99%. Note: Accurate stoichiometric ratios are critical for reaction efficiency and minimizing residual reactants. |
| 2 | Chemical Synthesis (Addition Reaction) | Charge the reactor with acrylic acid and catalyst. Slowly add Dimethyl Sulfide under continuous agitation and temperature control. | Control Point: Maintain reactor temperature between 25-40°C. The reaction is exothermic and requires cooling. Note: Reaction is typically monitored for 12-24 hours to ensure completion. |
| 3 | Product Isolation (Crystallization) | Cool the completed reaction mixture to a low temperature to induce the crystallization of the DMPT salt (e.g., DMPT Hydrochloride). | Control Point: A controlled cooling rate to 0-5°C is crucial for forming pure, well-defined crystals. Note: This step separates the product from the liquid reaction medium. |
| 4 | Solid-Liquid Separation | Filter or centrifuge the resulting slurry to separate the solid crude DMPT crystals from the mother liquor. | Control Point: Ensure the centrifuge or filter press is operating efficiently to maximize solid recovery and minimize product loss. Note: The mother liquor may be reprocessed to recover unreacted materials. |
| 5 | Purification (Washing) | Wash the separated crystals with a cold organic solvent (e.g., cold acetone or isopropanol) to remove soluble impurities. | Control Point: The wash solvent must be kept cold to prevent dissolving the desired DMPT product. Note: Purity is verified by HPLC analysis at this stage. |
| 6 | Drying | Dry the purified, wet DMPT crystals in a vacuum dryer under controlled temperature until residual solvent content is within specification. | Control Point: Drying temperature should not exceed 60°C to prevent thermal degradation. Final moisture/solvent content must be <0.5%. Note: DMPT is highly hygroscopic and must be handled in a low-humidity environment. |
| 7 | Milling & Sieving | Mill the dried DMPT crystals to achieve a consistent, fine powder. Sieve the powder through a designated mesh screen. | Control Point: Final particle size must meet specifications (e.g., 80-100 mesh) for consistent product performance and solubility. Note: Dust control measures are essential during this step. |
| 8 | Final QC & Packaging | Conduct a final, full quality control analysis on the finished product. Upon approval, package the DMPT into sealed, moisture-proof containers. | Control Point: The final product assay must be ≥98.0%. Note: Packaging must be airtight and sealed immediately to protect the hygroscopic product from moisture damage during storage. |
Technical Specifications
| CAS Number | 4337-33-1 |
| Chemical Formula | C₅H₁₁SO₂Cl |
| Solubility | Soluble in water; deliquescent; easy to agglomerate |
| Storage Conditions | Cool, dry place; protect from moisture and light |
| Shelf Life | 24 Months |
Applications & Usage
Common Applications:
Aquaculture feed additive for fish and crustaceans
bait enhancer
Mechanism of action:
| Parameter | Dimethyl Beta-Propiothetin (DMPT) |
|---|---|
| Functional Category | Feeding Stimulant; Chemoattractant; Osmoprotectant; Methyl Donor |
| Key Ingredients | Dimethyl Beta-Propiothetin ((CH₃)₂S⁺CH₂CH₂COO⁻) |
| Mechanism of Action | Binds to specific chemoreceptors in the olfactory and gustatory systems of aquatic animals, triggering a potent, involuntary feeding response. Functions as an effective methyl donor for metabolic processes. Acts as a cytoprotective osmolyte, helping to maintain cell volume and integrity under osmotic stress. |
| Application Effect in Product | Significantly increases feed intake, palatability, and reduces feed wastage in aquaculture feeds. Improves growth rate and feed conversion ratio (FCR). Enhances organismal resistance to environmental stressors like salinity and temperature changes. Used as a highly effective attractant in fishing baits and lures. |
Comparison:
| Product Name | Category/Type | Key Features | Strengths (vs peers) | Weaknesses (vs peers) | Best Use Cases | Why Choose |
|---|---|---|---|---|---|---|
| Dimethyl Beta-Propiothetin (DMPT) | Organosulfur Compound / Fish Attractant | Extremely potent feeding stimulant at low concentrations; water-soluble; mimics natural crustacean molting hormones. | Widely regarded as the most effective broad-spectrum feeding stimulant; triggers aggressive feeding response; effective in both freshwater and saltwater. | Significantly more expensive; can be overpowering and repel fish if overdosed; less long-term research than common amino acids. | High-performance baits for competitive angling; aquaculture feed for picky or high-value species; stimulating feeding in stressful conditions. | When maximum potency and a near-guaranteed feeding response are required, and cost is not the primary factor. |
| Betaine (Anhydrous/HCl) | Quaternary Ammonium Compound / Osmoregulator | Acts as both a feeding stimulant and a digestive aid; helps with osmoregulation under stress; highly water-soluble. | Very cost-effective; widely available; well-researched with known health benefits for fish; works synergistically with other attractants. | Significantly less potent as a direct feeding trigger compared to DMPT; effectiveness can be species-dependent. | Bulk additive in commercial aquaculture feeds; foundational ingredient in carp fishing boilies and groundbaits; general-purpose feed enhancer. | For a proven, cost-effective base attractant that also provides physiological benefits to the fish. |
| Glycine | Amino Acid | Simple, sweet-tasting amino acid; acts as a chemosensory stimulant for many fish and crustaceans. | Inexpensive and readily available; highly soluble in water; creates a natural food signal. | Much lower potency than DMPT; less specific action, works best as part of a complex amino acid mix. | Ingredient in shrimp and crustacean feeds; additive for groundbaits and particle soaks; creating a base level of attraction in a bait mix. | As an inexpensive, foundational attractant to build a broad amino acid profile, particularly for crustaceans. |
| Alanine | Amino Acid | A primary feeding stimulant for many species, especially cyprinids (carp family); natural component of prey items. | Proven effectiveness for specific target species; relatively low cost; natural and readily metabolized. | Less effective as a broad-spectrum attractant compared to DMPT; lower potency on a weight-for-weight basis. | Specific baits targeting carp, bream, and eels; component in amino acid liquids and powders for angling. | When specifically targeting species known to respond strongly to this amino acid, such as carp. |
| Dimethyl Sulfide (DMS) | Organosulfur Compound | Highly volatile compound with a strong, pungent odor; a natural cue indicating zooplankton grazing on phytoplankton. | Extremely effective long-range olfactory cue, especially for marine predators; mimics a natural food source signal from a great distance. | Very volatile and difficult to incorporate into solid baits; extremely strong odor; acts more as a long-range locator than a close-range feeding stimulant. | Liquid soaks and glugs for marine fishing; creating a scent trail in the water to attract fish from a wide area. | To create a powerful, long-distance scent signal in marine environments, rather than for stimulating the final feeding action. |
Technical Documents
Available Documentation
COA and specification sheet available
Safety Data Sheet (SDS)
MSDS available
Certificate of Analysis (COA)
Quality assurance documentation
Technical Data Sheet
Detailed technical specifications