View documents (PDF) of following AjiLys® information.


Over the past 20 years, a large number of integrators and feed manufacturers within the swine and poultry industries throughout the United States, Mexico, South America and other parts of the world have successfully transitioned from dry L-Lysine (monohydrochloride or sulfate) to AjiLys®, Ajinomoto’s brand name for Liquid Lysine.

Below are a number of points that make AjiLys® a valuable and practical alternative to dry L-Lysine

  • AjiLys® offers nutritionists and feed mills flexibility when it comes to supplying L-Lysine to the diet
    • AjiLys® does not require warehouse space, thus allowing the feed mill to utilize floor space for other valuable products
  • AjiLys® is stored in a dedicated system that is automatically monitored for inventory
    • The system is equipped with inventory monitoring, which allows the customer and Ajinomoto Health & Nutrition North America, Inc. to carefully monitor the day-to-day performance and the inventory level of the storage tank
    • Micro-bins and bulk-bins can be made available for other valuable ingredients
  • AjiLys® is hands-free, requiring no labor for unloading, dosing, etc. This allows mill labor to work on other feed mill-related tasks
    • AjiLys® can be delivered to the feed mill and to the mixer with no disruption to normal mill operations
  • No disposal of bags or totes is required with AjiLys
    • Disposal and landfill fees are eliminated
  • No dust / no waste
    • Loss of product is significantly reduced
    • Improves the employees’ work environment
    • Minimizes sanitary and safety issues within the mill
  • Ajinomoto Animal Nutrition North America, Inc has a defined set of equipment specifications that rivals its competitors’
    • We not only know our product, but we also provide systems that are well designed from the perspective of accurate metering, product application, longevity and general system maintenance.
    • Ajinomoto Animal Nutrition North America, Inc works with the customer to define the system and/or solutions that best meet their current and future needs

Appearance……………………………. Brown liquid, slight odor
Molecular Weight…………………… 146.19 (L-Lysine)
Molecular Formula………………….. C6H14N2O2 (L-Lysine) + H2O (Water)


Commercial Guarantee
L-Lysine Content: 50% Minimum

The information contained herein is correct to the best of our knowledge. The recommendations or suggestions made in this document are made without guarantee or representation as to result.

Chemical formula: C6H14N2O2 (L-Lysine) + H2O (Water)
Molecular weight1: 146.19
Appearance: Brown liquid, slight odor
Dry Matter: (average) 50 to 60%
pH: 10 to 11
Specific Gravity (H2O = 1): 1.12 to 1.19 kg/L (9.35 to 9.93 lbs/gallon)

Crude Protein: (%/16 g-N)1: 59.88% (9.58% N from L-Lysine)
Calculated Energy
Swine, DE: 3,110 (kcal/kg) 1,411 (kcal/lb)
Swine, ME: 2,830 (kcal/kg) 1,284 (kcal/lb)
Swine, NE: 2,200 (kcal/kg) 998 (kcal/lb)
Poultry, ME: 2,640 (kcal/kg) 1,198 (kcal/lb)

Shelf Life:
Stable for 6 months at 25 to 35°C (77 to 95°F)
Pelleting Stability: Stable under commercial pelleting conditions
Temperature: Stable at 25°C (equipment should be insulated and heated)

To be used in the manufacturing of animal feeds. Add 4.0 pound of AjiLys®- Liquid Lysine 50 per 2,000 pounds of feed to achieve a 0.1% increase in the L-Lysine content of the diet.

There are no known incompatibility issues between AjiLys® and either HMTBa, Liquid Methionine, Liquid Choline Chloride or fat when the liquids are simultaneously, yet independently applied to actively mixing feed.

1The Merck Index, 13th Edition (2001) _ L-Lysine (5656; Pg. 1010)
These values are for informational purposes only and do not constitute any commercial guarantee



Product Name: AjiLys®- Liquid Lysine – Feed Grade 50%
Synonyms: Aqueous solution of L-Lysine. Alpha, Epsilo-Diaminocaproic Acid; 2, 6-Diaminohexanoic Acid; L-Lysine
Restrictions: For Animal feed only- not for human consumption
Manufacturer and Distributer:
Ajinomoto Health & Nutrition North America, Inc.
1116 Hwy 137
Eddyville, Iowa 52553
641-969-4551 – Eddyville, IA
773-380-7000 – Chicago, IL

Hazard Identification
Eye: Mild irritant, avoid contact with eyes, otherwise non hazardous
Ingestion: No effects expected from normal use or minor amounts ingested
Skin: Mild irritant otherwise non hazardous
Principle Routes of Exposure: Eyes, ingestion, and skin

Composition on ingredients
2-Amino-3-Hydroxybutric Acid
CAS registry number: 72-19-5
Formula: C6H14NO2 (L-Lysine) + H2O (Water) As L-Lysine, 50% (wt. /wt., minimum)

First Aid measures
Eye Contact: Flush eyes with water for 15minutes
Ingestion: Don’t swallow; rinse mouth with water and drink plenty of water
Skin Contact: Ensure thorough rinsing. Remove contaminated clothing and wash with water and mild detergent.
Inhalation: Provide fresh air

Fire-fighting measures
Aqueous solution; non-flammable not a fire hazard

Accidental release measures
Methods for cleaning up: Run off must be prevented from running down drains, sewers, or streams. Dispose of in accordance with all regulations.

Handling and Storage
Handling: Recommended to wear chemical –resistant gloves and safety glasses. Wash hands immediately to avoid hand to eye transfer.
Storage: Store in insulated tanks at temperatures between 25-35°C (77-95°F); do not go below 0°C (32°F), as viscosity will increase at low temperatures
Other Precautions: Keep separated from incompatible substances

Exposure controls/ Personal Protection
Hygiene measures: Handle with good industrial hygiene and safety practice. Wash hands before breaks and at the end of the day
Skin Protection: Appropriate chemical- resistant gloves recommended
Respiratory Protection: Handle only in well ventilated areas. Ensure compliance with applicable exposure limits.
Protective Equipment: Splash–resistant eye protection recommended

Physical and Chemical Data
Appearance & Odor: Brown liquid, slight odor
Specific Gravity (H2O=1): 1.12 to 1.19 kg/l (9.35 to 9.93 lbs/gallon)
pH as Supplied: 10 - 11
Solubility in Water: Aqueous liquid
Dry Matter: 50 - 60%
Molecular weight: 146.19

Stability and reactivity
Reactivity: See Incompatibility below
Stability: Stable for 6 months at 25-35°C (77-95°F)
Conditions to Avoid: Temperature below 0°C (32°F) – viscosity will increase at low temperatures
Incompatibility (Materials to avoid): Liquid Methionine Hydroxy Analogue (a 50:50 mixture of AjiLys® and 2-hydroxy-4- (methylthio) butanoate (HMTBA ) will create a significant amount of heat and steam), Liquid Methionine, Liquid Choline Chloride or highly unsaturated fat. There are no known incompatibility issues between AjiLys® and either HMTBA, Liquid Methionine, Liquid Choline Chloride, or fat when the liquids are simultaneously, yet independently applied to actively mixing feed.

Toxicological Information
Eye Irritation: Can cause mild irritant otherwise non hazardous
Inhalation: Handle in a ventilation area
Ingestion: No effects expected from normal use or minor ingestion
Sensitization: No data available
Chronic exposure: No data available
Specific Effects:
Carcinogenic Effects: No information Available
Mutagenic Effects: No information Available
Reproductive Effects: No information Available
Target Organ Effects: No information Available

Ecological information:
Fish and other wildlife may be harmed as a result of this material being released in their vicinity

Disposal Considerations
Disposal: Dispose of in accordance with all regulations.

Transport information
Proper Shipping Name: AjiLys® (Liquid Lysine)
FDA21CFR: 582.5411
AAFCOID#: 6.16

Regulatory Information: N/A

Other Information
Further Information: The above information is believed to be accurate and represents the best information currently available to us and shall be used only as a guide. The information in this document is based on the present state of our knowledge and is applicable to the product regard to appropriate safety precautions. It does not represent any guarantee of the properties of the product. Users should make their own investigations to determine the suitability of the information for their particular purposes. Ajinomoto Health & Nutrition North America, Inc. shall not be held liable for any damage resulting in the handling or from the contact with the above product.
Prepared by: Ajinomoto Health & Nutrition North America, Inc. April 2015