L-Lysine (Free Base)

Injectable Grade

CAS #:


Molecular Formula:



2,6-Diaminohexanoic acid

Molecular Weight:

146.19 g/mol


L-Lysine, also known as 2,6-Diaminohexanoic acid, is an essential amino acid used as a base. It is suitable for general industrial use or research purposes and typically are not suitable for human consumption or therapeutic use.

Characters Unit Specification
Identity (IR) Conforms
Appearance White to off-white microcryst. solid
Solubility (10%) Clear, yellowish solution
Assay (hplc) % 98-101.5
Cell culture Toxicity Passes test
DNases ND
Proteases ND
RNases ND
Spec. Rot., [α]D o 25.5°-26.7° (c = 8, 6N HCl; dried)
Water % ≤ 2
Ash (Residue on ignition) % ≤ 0.1
Heavy metals (Pb) ppm ≤ 15
SO4 (Sulphate) % ≤ 0.03
Fe ppm ≤ 30
Microbiological Specifications
Total Aerobic (CFU/g) CFU/g ≤ 100
Mold and Yeast (CFU/g) CFU/g ≤ 100
Endotoxin Level EU/mg ≤ 0.1

Shelf Life/Retest Date: The minimal shelf-life of L-Lysine, CAS 56-87-1 is 2 years when stored under recommended conditions.

Storage/Shipping Conditions:

  • Keep container tightly closed in a dry and well-ventilated place.
  • Strongly hygroscopic.

Pack Sizes: 1 Kg and 5 Kg

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