PRODUCT IDENTIFICATION

H.S. CODE

TOXICITY

CLASSIFICATION

PHYSICAL AND CHEMICAL PROPERTIES (65% SOLUTION)

1.175 - 1.185

AUTOIGNITION

NFPA RATINGS

REFRACTIVE INDEX

GENERAL DESCRIPTION & APPLICATIONS

Choline is a quaternary ammonium compound having a hydroxyl substituent with general formula, (CH₃)₃N⁺CH₂CH₂OHX^- . It is a strongly basic hygroscopic amine substance distributed widely in plant and animal tissues. It is often referred to vitamin B complex. It is the basic constituent of lecithin (a group of phospholipids of the general composition CH₂OR₁CHOR₂CH₂OPO₂OHR₃, where R₁ and R₂ are fatty acids and R₃ is choline) and other phospholipids. Sphingomyelin is a phospholipid consisting of choline, sphingosine, phosphoric acid, and a fatty acid. Choline prevents the deposition of fat in the liver. It is essential in normal fat and carbohydrate metabolism. It is a precursor of acetylcholine which is released at the ends of nerve fibers in the somatic and parasympathetic nervous systems. It is essential in synaptic transmission of nerve impulses. Choline is also involved in protein metabolism and transmethylation as a methylating agent. Methionine and choline are important donors of methyl groups in biochemistry. Choline is also oxidized to form betaine in methionine biosynthesis. Choline and its salts and esters are widely used in the industry of feed, agriculture, food, health care, pharmaceuticals, and biochemistry.

ASSAY

65.0% min

CHLORIDE

0.5% max

SULFATE

1.5% max

SULFATED ASH

0.1% max

IRON

50ppm max

HEAVY METALS

20ppm max

Hazard Symbols: XI, Risk Phrases: 36/37/38, Safety Phrases: 26-36