Product Name: Choline Hydrogen Tartrate
Chemical Formula: C9H19NO7
Synonyms: Choline tartrate, 2-hydroxyethyl(trimethyl)ammonium hydrogen tartrate
CAS Number: 87-67-2
EC Number: 201-764-7
Relevant Use: Food additive, nutritional supplement, research chemical
Supplier Information: Name, address, emergency phone, and email for commercial supplier
GHS Classification: Not classified as hazardous by GHS
Physical Hazards: May form combustible dust concentrations
Health Hazards: Can irritate eyes, skin, and mucous membranes at higher concentrations or prolonged exposure
Environmental Hazards: No data indicating significant risk under normal use
Precautionary Statements: Avoid skin and eye contact, prevent dust formation, handle in well-ventilated area
Component: Choline Hydrogen Tartrate
Purity: Typically 97–99.5%
Impurities: Possible trace of moisture or other choline derivatives
Formula: C9H19NO7
Molecular Weight: 269.25 g/mol
Eye Contact: Rinse immediately with plenty of water for at least 15 minutes; remove contact lenses if present; seek medical attention if irritation persists
Skin Contact: Wash gently with water and soap; remove contaminated clothing; get medical attention for persistent symptoms
Inhalation: Move to fresh air; get medical help if symptoms develop or persist
Ingestion: Rinse mouth, drink water to dilute; seek medical advice if discomfort occurs
Advice for Physicians: Symptomatic and supportive treatment recommended
Suitable Extinguishing Media: Water spray, foam, dry chemical, or carbon dioxide
Specific Hazards: May emit irritating fumes such as carbon oxides and nitrogen oxides under fire
Protective Equipment: Firefighters should wear self-contained breathing apparatus and protective clothing
Special Procedures: Use water spray to cool surfaces exposed to fire
Combustion By-products: Carbon monoxide, carbon dioxide, nitrogen oxides
Personal Protection: Use dust mask, safety goggles, and gloves; avoid generation of dust
Spill Cleanup: Sweep up and place material in dry, labeled container; keep out of water sources
Environmental Precautions: Do not flush into surface water or sanitary sewer
Methods for Cleaning: Clean spill area with plenty of water after material pickup
Other Precautions: Ventilate area and avoid inhalation of dust during clean‐up
Handling Precautions: Minimize dust formation; avoid inhalation and contact with eyes or skin; provide adequate ventilation
Safe Storage Conditions: Store in tightly closed container in cool, dry, and ventilated place away from strong acids and oxidizers
Incompatible Materials: Strong oxidizing agents, strong acids
Hygienic Practices: Wash hands after use; avoid eating or drinking while handling
Control Parameters: No established occupational exposure limit
Engineering Controls: Use fume hood or localized exhaust for dust control
Personal Protective Equipment: Safety goggles, gloves, lab coat; respiratory protection for excessive dust
Hygiene Measures: Remove contaminated clothing, wash hands and face after handling
Environmental Exposure: Limit release to environment; use proper waste containers
Appearance: White to off-white crystalline powder
Odor: Characteristic, slightly saline smell
Odor Threshold: Not available
pH: About 4.5–5.5 (5% solution in water)
Melting Point: 254–258°C (decomposes)
Boiling Point: Not applicable (decomposes)
Flash Point: Not available
Solubility: Easily soluble in water, practically insoluble in ethanol, ether
Partition Coefficient (log Kow): Not available
Vapor Pressure: Not available
Vapor Density: Not available
Density: About 1.36 g/cm³
Evaporation Rate: Not applicable
Explosive Properties: Not classified as explosive
Oxidizing Properties: Not classified as oxidizer
Stability: Stable under recommended storage and handling conditions
Reactivity: Reacts with strong acids, strong bases, and oxidizers
Decomposition Products: Releases carbon oxides, nitrogen oxides when heated
Conditions to Avoid: Moisture, heat, sources of ignition
Polymerization: Will not occur under normal conditions
Acute Toxicity: No data indicating acute toxicity at concentrations likely to be encountered
Skin Irritation: Mild irritant based on structural similarity to other choline salts
Eye Irritation: May cause moderate irritation
Respiratory Effects: Prolonged inhalation of dust can irritate mucosa
Sensitization: Not known to cause allergic reactions
Long-Term Effects: No conclusive evidence for carcinogenicity, mutagenicity, or reproductive toxicity under normal use
Ingestion: Large quantities may upset gastrointestinal tract
Ecotoxicity: No significant environmental hazards identified at recommended use levels
Aquatic Toxicity: Low potential for toxicity, but avoid discharge into waterways
Persistence and Degradability: Expected to biodegrade under environmental conditions
Bioaccumulation: Not expected to bioaccumulate
Mobility in Soil: Expected to be mobile in aqueous environments
Other Adverse Effects: No additional adverse environmental effects known
Disposal Methods: Dispose of in accordance with local, state, and national regulations; use chemical landfill or incineration as appropriate
Contaminated Packaging: Treat as chemical waste; rinse containers before recycling or disposal
Recycling: Not recommended due to potential contamination
Special Precautions: Do not dispose of in natural waterways, sewer, or open land
UN Number: Not regulated as hazardous material for transport
UN Proper Shipping Name: Choline Hydrogen Tartrate
Transport Hazard Class: Not classified
Packing Group: Not assigned
Special Precautions for Users: Protect from moisture, prevent package damage, secure loads during transport
Environmental Hazards: Not classified as dangerous for the environment during transport
Marine Pollutant: Not identified as marine pollutant
Laboratory Safety: Standard chemical laboratory safety protocols apply
OSHA Status: Not listed as hazardous by Occupational Safety and Health Administration
TSCA Inventory: Listed in the Toxic Substances Control Act inventory
REACH Registration: Exempted or pre-registered for use in the EU
California Proposition 65: Not listed
SARA Title III: Not classified under SARA Title III sections 302/304/311/312/313
Food Additive Status: Approved in several countries for use as a nutritional supplement
Other Regulation: Users must comply with applicable local, regional, national, and international law regarding safe use and handling
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