Product Identification

Product Name

L-Lysine

Synonyms

(2S)-2,6-Diaminohexanoic acid
2,6-Diamino hexanoic acid
alpha,epsilon-Diaminocaproic acid
Lys (Iupac abbreviation)
Lysine
Lysine acid

CAS

56-87-1

Formula

C6H14N2O2

Molecular Weight

146.19

EINECS

200-294-2

RTECS

OL5540000

RTECS Class

Mutagen; Reproductive Effector

Merck

12,5667

Beilstein/Gmelin

1722531

Beilstein Reference

4-04-00-02717

Physical and Chemical Properties

Appearance

White to yellow powder.

Solubility in water

Very freely soluble

Melting Point

196

Boiling Point

290

pKa/pKb

2.16(at 25℃) (pKa)

Partition Coefficient

-1.15

Usage

Food enrichment, nutrient.

First Aid Measures

Ingestion

Seek medical attention. If individual is drowsy or unconscious, do not give anything by mouth; place individual on the left side with the head down. Contact a physician, medical facility, or poison control center for advice about whether to induce vomiting. If possible, do not leave individual unattended.

Inhalation

Although inhalation of common dust may not be considered toxic, it is certainly a hazard if there is inhalation of too many particles. Individuals should be removed from exposure to too high a concentration of even relatively non-toxic substances.

Skin

Remove contaminated clothing. Wash exposed area with soap and water. If symptoms persist, seek medical attention. Launder clothing before reuse.

Eyes

Foreign materials in the eye may not cause a toxic reaction, but injury from a foreign body may occur. In such cases, the patient should be observed for eye irritation and should seek medical assistance if the irritation becomes significant.

Handling and Storage

Storage

Store in a cool, dry location in a tightly sealed container.

Handling

Avoid inhalation and contact. Avoid prolonged and repeated exposure.

Exposure Controls/Personal Protection

Personal Protection

Chemical splash goggles in compliance with OSHA regulations are advised; however, OSHA regulations also permit other type safety glasses. Whre chemical resistant gloves. To prevent repeated or prolonged skin contact, wear impervious clothing and boots.

Respirators

NIOSH approved respirator.

Exposure Effects

Causes irritation. May be harmful by inhalation, ingestion or inhalation.

Fire Fighting Measures

Flash Point

211

Fire Fighting

Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Use agent most appropriate to extinguish fire.

Upper exp. limit

10.1

Lower exp. limit

1.2

Accidental Release Measures

Small spills/leaks

Wear approved protective equipment. Sweep up and place in a bag for disposal. Avoid raising dust. Ventilate area. Wash spill site after material is removed.

Stability and Reactivity

Stability

Stable.

Incompatibilities

Strong oxidizing agents.

Decomposition

Oxides of carbon and nitrogen.