L-Lysine sulphate (feed grade), CAS 60343-69-3, is a concentrated fermentation product used as the primary source of L-lysine in animal feed. Unlike the purified hydrochloride, it is obtained by concentrating and drying the fermentation broth, so it carries L-lysine together with other fermentation-derived nutrients and sulphate. PolyBlueChem supplies feed grade material with lysine content 55.0% min on a dry matter basis and loss on drying 4.0% max, packed for feed mill use.
Specifications
| Property | Specification |
|---|---|
| Appearance | Light brown to brown granular powder |
| Lysine content (on dry matter basis, %) | Min 55.0 |
| Loss on drying (%) | Max 4.0 |
| Packaging | 25 kg net bag with inner liner; 1000 kg jumbo bag on request |
Basic Information
| Product name | L-Lysine sulphate, feed grade |
| CAS number | 60343-69-3 |
| Production route | Fermentation (Corynebacterium glutamicum), broth concentrated and dried |
| Lysine content | Min 55.0% on dry matter basis |
| Moisture (loss on drying) | Max 4.0% |
| Appearance | Granular powder, light brown to brown |
| Use | Lysine supplementation in compound feed for swine, poultry and aquatic species |
| Grade | Feed grade (not for human consumption) |
What Makes It Different from L-Lysine HCl
Both products deliver L-lysine to the animal, but they are made differently and priced differently:
| Item | L-Lysine sulphate | L-Lysine HCl |
|---|---|---|
| Production | Fermentation broth concentrated and dried – no purification step | Fermentation, ion exchange purification, crystallisation as the hydrochloride |
| Typical lysine content | 55% min (dry basis) | 78.5-78.8% lysine (as 98.5% HCl salt) |
| Other nutrients | Contains other amino acids and fermentation solids | Essentially pure lysine salt |
| Cost per kg lysine | Usually lower | Higher |
| Handling | Granular, low dust, less hygroscopic | Fine crystalline, hygroscopic, can cake |
Because the specification is expressed on a dry matter basis, the delivered lysine per tonne depends on moisture. A lot at 4% moisture carries slightly less lysine per tonne than one at 2% – which is why formulators work from the assay rather than from a nominal 55%.
Typical Applications
- Swine feed – lysine is normally the first limiting amino acid in maize-soy diets; supplementation allows crude protein to be reduced while maintaining performance.
- Poultry feed – broiler and layer diets, particularly where wheat or maize dominates and soybean meal is limited.
- Aquatic feed – fish and shrimp diets, where lysine demand per unit protein is high.
- Ruminant feed – rumen-protected forms are used for high-yielding dairy cows; unprotected lysine is degraded in the rumen.
- Fermentation and technical uses – nutrient source in fermentation media.
Handling and Storage
| Point | Guidance |
|---|---|
| Storage | Dry, ventilated area on pallets; keep bags closed – the product picks up moisture and can cake |
| Temperature | Ambient; avoid prolonged exposure above 40 deg C and direct sunlight |
| Handling | Granular form is low-dust; standard feed mill handling with dust control at weighing points |
| Shelf life | Use within the period stated on the COA; re-test loss on drying if bags have been stored humid |
| Segregation | Store separately from materials with strong odour; the product can pick up smells |
Packaging and Documentation
Supplied in 25 kg net bags with an inner liner, or 1000 kg jumbo bags for feed mills. Each batch ships with a COA covering appearance, lysine content on dry matter basis and loss on drying; a product specification sheet is available for feed registration files. Compliance with national feed additive rules is confirmed per destination market at enquiry stage.
Related reading
- L-Lysine sulphate feed grade: properties, specification and applications
- L-Lysine sulphate in swine, poultry and aquatic feed
- L-Lysine sulphate vs L-lysine HCl
FAQ
What is the CAS number of L-lysine sulphate? CAS 60343-69-3.
Why is the lysine content quoted on a dry matter basis? Because the product carries 2-4% moisture, and expressing the assay on dry matter makes lots comparable regardless of moisture content.
Can it replace L-Lysine HCl one for one? No – the lysine content differs. Convert by lysine: 1 kg of HCl salt at 98.5% delivers about 0.788 kg lysine, while 1 kg of sulphate at 55% dry basis delivers about 0.53-0.55 kg lysine depending on moisture.
Is it suitable for organic production? Eligibility depends on the certification scheme and the production route; confirm with your certifier and request the documentation for the specific lot.
Contact PolyBlueChem for specifications, samples and quotations.
