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| Synonyms：Choline bitartrate crystalline Choline Hydrogen L-(+)-Tartrate Formula:C9H19NO7 Weight:253.25 HS Code:2923100000 Grade:Food grade Hazard Class:General Chemical | |||||||||
87-67-2
bosschemical
87-67-2
Items of Analysis | Specifications | Results |
Identification A&B | Positive reaction | Conforms |
Appearance | White, hygroscopic, crystalline powder | Conforms |
Assay(calculated on the anhydrous basis) | 99.0-100.5% | 99.2% |
pH(1 in 10) | 3.0-4.0 | 3.48 |
Water Determination | NMT 0.5% | 0.25% |
Residue on ignition | NMT 0.1% | 0.03% |
Heavy metals | NMT 10ppm | <10ppm |
Lead (Pb) | NMT 2mg/kg | <2mg/kg |
Arsenic (As) | NMT 1 mg/kg | <1mg/kg |
Mercury (Hg) | NMT 0.1 mg/kg | <0.1mg/kg |
Cadmium(Cd) | NMT 1 mg/kg | <1mg/kg |
Limit of Total Amines | NMT 10μg/g | <10μg/g |
1,4-Dioxane | NMT 10μg/g | <10μg/g |
Specific Rotation | +17.5°- +18.5° | +18.0° |
Chromatographic purity | ||
Individual impurities | NMT 0.3% | Conforms |
Total impurities | NMT 2.0% | Conforms |
Microbial | ||
Total plate count | ≤1000CFU/g | <1000CFU/g |
Yeast and mold | ≤100CFU/g | <100CFU/g |
E.Coli | Negative/25g | Negative |
Salmonella | Negative/25g | Negative |
Staphylococcus aureus | Negative/25g | Negative |
Particle size | ||
Through 20 Mesh | ≥95% | 97.8% |
1.Cell Culture And Biochemical Reagent: It is used as a choline source in cell culture media and as a laboratory biochemical reagent, where its water solubility makes dosing into aqueous culture systems straightforward.
2. Enzyme And Receptor Research Reagent: In biochemical research it acts as an acyl group acceptor and a substrate for choline acetyltransferase, which makes it a working reagent for in vitro studies of choline metabolism.
3. Choline Source For Dietary Supplements: A free-flowing crystalline powder carrying around 40 percent choline cation.
4. Pet Food Nutrition: Choline salts serve as a dietary choline source in dry and canned pet foods for dogs and cats, which makes choline bitartrate workable in pet food, treat and supplement formulations.
5. Water Soluble Handling For Wet And Dry Systems: The salt dissolves freely in water and carries a faint amine odour or none at all, so it suits beverage bases, liquid premixes and dry blends that need a water soluble choline source.
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