IUPAC Name: 2-hydroxyethyl(trimethyl)azanium; 2,3,4-trihydroxy-4-oxobutanoate 
Molecular Formula: C₉H₁₉NO₇ 
Formula Weight: 253.25g/mol 
EINECS: 201-763-4 
Structure of Choline bitartrate (CAS NO.87-67-2):

Melting Point: 151-153^°C 
storage temp.: Store at RT. 
Physical Appearance: White crystalline powder 
Synonyms of Choline bitartrate (CAS NO.87-67-2): (2-Hydroxyethyl)trimethylammonium bitartrate ; (2-Hydroxyethyl)trimethylammonium-L-(+)-tartrate salt (1:1) ; 2-Hydroxyethanaminium,-N,N,N-trimethyl-, (R-(R*,R*))-2,3-dihydroxybutanedioate (1:1) ; Butanedioic acid, 2,3-dihydroxy- (R-(R*,R*))-, ion(1-), 2-hydroxy-N,N,N-trimethylethanaminium ; Choline bitartrate, anhydrous ; Choline hydrogen tartrate ; Choline tartrate ; Choline tartrate (1:1) ;
 Ethanaminium, 2-hydroxy-N,N,N-trimethyl-, salt with (R-(R*,R*))-2,3-dihydroxybutanedioic acid (1:1) ; Tartaric acid, ion(1-), choline ; UNII-6K2W7T9V6Y  
STABILITY OF CHOLINE Bitartrate: Stable under ordinary conditions
Product Categories: Ammonium Polyhalides, etc. (Quaternary);Biochemistry;Quaternary Ammonium Compounds;Vitamin Related Compounds;Vitamins 
Canonical SMILES: C[N+](C)(C)CCO.C(C(C(=O)[O-])O)(C(=O)O)O
InChI: InChI=1S/C5H14NO.C4H6O6/c1-6(2,3)4-5-7;5-1(3(7)8)2(6)4(9)10/h7H,4-5H2,1-3H3;1-2,5-6H,(H,7,8)(H,9,10)/q+1;/p-1 
InChIKey: QWJSAWXRUVVRLH-UHFFFAOYSA-M

CHOLINE Bitartrate is widely used in the industry of feed, agriculture, food, health care, pharmaceuticals, and biochemistry.

Routes of Entry: Eye contact. Inhalation. Ingestion.
Toxicity to Animals:
LD₅₀: Not available.
LC₅₀: Not available.
Chronic Effects on Humans: Not available.
Other Toxic Effects on Humans:
Very hazardous in case of ingestion.
Hazardous in case of inhalation.
Slightly hazardous in case of skin contact (irritant).

Hazard Codes : Xi 
Risk Statements : 36/37/38 
R36/37/38:Irritating to eyes, respiratory system and skin. 
Safety Statements : 26-36
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. 
S36:Wear suitable protective clothing. 
WGK Germany : 3
Hazardous Substances Data 87-67-2(Hazardous Substances Data)

ASSAY OF CHOLINE Bitartrate: 98.0% min
LOSS ON DRYING: 0.5% max
WATER: 10.0% max
1,4-DIOXANE: pass
HEAVY METALS: 20ppm max
LEAD: 1ppm max

Precautions: Keep away from HEAT. Keep away from sources of ignition. Empty containers pose a fire risk, evaporate the residue under a fume hood. Ground all equipment containing material. Do not breathe dust. Avoid contact with eyes Wear suitable protective clothing In case of insufficient ventilation, wear suitable respiratory equipment If you feel unwell, seek medical attention and show the label when possible.
Storage: Keep container dry. Keep in a cool place. Ground all equipment containing material. Keep container tightly closed. Keep in a cool, well-ventilated place. Combustible materials should be stored away from extreme HEAT and away from strong oxidizing agents.