Product Description CDP Choline is a single nucleotide composed of ribose, cytosine, pyrophosphate, and choline. CDP Choline, as an endogenous compound, is an indispensable intermediate in the synthesis of phosphatidylcholine in cell membrane structure. Its formation is a rate-limiting step in the synthesis of phosphatidylcholine and a natural biochemical process in the cell membrane. CDP Choline naturally exists in cells of human and animal tissues, especially in organs. It can also enhance neuroplasticity and is a natural precursor of phospholipid synthesis, mainly phosphatidylcholine, or, more precisely, acts as a metabolic pathway choline source for acetylcholine biosynthesis. CDP-Choline, the full name is Cytidine Diphosphate Choline, is a compound also known as choline diphosphate (Choline CDP). It is a choline-based nutritional supplement widely used in medicine and health. CDP-Choline plays an important role in the body. It is an intermediate product in the synthesis of choline, which can provide structural components of cell membranes and participate in physiological processes such as nerve conduction, brain function, and learning and memory. Choline is an important neurotransmitter that plays a role in the brain to promote memory and cognitive abilities. CDP-Choline passes through the blood-brain barrier and can directly enter the brain tissue, and then is converted into choline and choline ester, thereby increasing the synthesis and release of acetylcholine. Acetylcholine is a key neurotransmitter that is important for proper brain function. BASIC ANALYSIS Testing Items Specifications Results Appearance White crystalline powder Conforms Clarity and color Colorless and clear Conforms PH 2.5-3.5 3.1 Particle Size 100% pass 20 mesh Conforms 5’-CMP ≤1.0% 0.26% Ammonium ≤0.05% Conforms Free phosphoric acid ≤0.01% Conforms Loss in mass on drying ≤5.0% 1.9% Heavy metals Heavy metals total ≤10ppm Conforms Arsenic (As) ≤2ppm Conforms Lead (Pb) ≤3ppm Conforms Cadmium (Cd) ≤1ppm Conforms Mercury (Hg) ≤0. 1ppm Conforms Microbiology control Total plate count ≤1,000 cfu/g Conforms Fungi count ≤100 cfu/g Conforms Total yeast & molds ≤100 cfu/g Conforms Total coliforms ≤10 cfu/g Conforms Escherichia coli Negative/10g Conforms Salmonella species Negative/25g Conforms Staphylococcus aureus Negative/g Conforms Assay  （by HPLC） 98.0%--102% 99.78% Purity（HPLC） ≥99.0% 99.93% Function Cognitive enhancement: CDP-Choline can improve learning ability, memory and concentration, and has a positive impact on cognitive function. Neuroprotection: CDP-Choline has antioxidant and anti-inflammatory effects, protecting nerve cells from oxidative stress and inflammatory damage. Nerve repair: CDP-Choline can promote the regeneration and repair of neurons and may play a positive role in the treatment of neurodegenerative diseases. Antidepressant: CDP-Choline is used clinically as a possible antidepressant and has been shown to alleviate depressive symptoms.