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phosphatidylserine cas 51446-62-9

Assay: 50%

Appearance: White powder

Capacity: 1000MT per year

Packaging: 25kg fiber drum

Sample: available



Phosphatidylserine Quick Details

Chemical Name: Phosphatidylserine/ PS

CAS No.: 51446-62-9

Molecular Formula: C42H82NO10P

Molecular weight: 792.081

Appearance: Fine yellow powder

Assay: 20@% 50% 70% powder

Phosphatidylserine Typical Properties

Items Standard
Color and Appearance Fine yellow powder
Odor Characteristic
Taste Characteristic
Identification Same with standard
Phosphatidyl serine ≥20%
Phosphatidylethanolamine ≤16%
Phosphatidylinositol ≤12%
Phosphatidylcholine ≤20%
Peroxide value ≤10meq/KG
Loss on Drying ≤5.0%
Heavy metals ≤10PPM
Arsenic ≤1PPM
Lead ≤3PPM
Total plate count ≤10000cfu/G
Total yeast mold ≤1000cfu/G
E.coli. Negative
Salmonelia Negative
Staphylococcus Negative

Physical and chemical properties

Pure PS is a white waxy solid, soluble in most non-polar solvents containing a small amount of water and insoluble in anhydrous acetone. It can be extracted from tissues and cells by chloroform methanol extraction method. When PS dissolves in water, most insoluble lipids form micro-clusters except for a few true solutions. At pH 7, PS has two negative charges and one positive charge, leaving a net negative charge. Metal salts of fatty acids are hydrolyzed by weak alkali, and the rest is not hydrolyzed. Fatty acids, serine and glycerol phosphate are produced by strong alkali hydrolysis. PS exposed to air is easy to be oxidized, the color gradually deepens, from white to yellow, and finally black. The natural PS is almost free from alcohol. The saturated PS and alcohol form a staggered chain gel. The interaction of two palmityl phosphatidylserine with 5% alcohol at room temperature induces the formation of regular gel.

The structure of PS consists of three parts:

the head of hydrophilic Glycerol Skeleton and the tail of two long hydrocarbon chains. The head is composed of three groups, serine residue and phosphoric acid residue, and the other two light groups of C-3 glycerol are connected with fatty acid to form tail respectively. Compared with C-1 fatty acids, C-2 fatty acids have longer carbon chains and more unsaturated bonds. Phosphatidylphthaleine serine (PS) refers to a group of compounds, not a single component, which is due to the great changes in the ethylphthalide residues of products extracted from different sources. PS is amphiphilic, that is, it is hydrophilic and lipophilic. Its structure determines its unique properties. The head with negative charge is hydrophilic (or water-soluble), and the tail composed of fatty acids is lipophilic (or fat-soluble).


PS extracted from bovine cerebral cortex (BC-PS) was absorbed slowly by oral administration. The blood concentration of PS increased within 4 hours and reached its peak after 24 hours. The maximum absorption peak of 14C After intravenous administration of BC-PS, plasma clearance was very fast, showing a biphasic curve. The half-life of the first phase distribution curve is 5 minutes, which mainly reflects the uptake of the drug by the liver. The half-life of the second phase distribution curve is 15 minutes, which may be related to the action of blood cells. In addition to the liver, lung and spleen are also important for the uptake of BC-PS. The drug dosage into the brain is less, mainly concentrated in the cortex, thalamus and hippocampus. Some of BC-PS in human blood can be converted into phosphatidylphthalein ethanolamine by de-pressing or hemolytic PS by de-phthalide group, and serine can also be removed. The latter enters the amino acid metabolic pathway. However, liposoluble phosphatidic acid metabolites still play a major role in plasma, mainly in prototype drugs. The metabolic process of BC-PS in liver and brain is similar to that in blood. Regardless of the mode of administration, BC-PS is excreted mainly through intestine, followed by kidney. Liposoluble metabolites and prototype drugs are the main excretion through intestine, while water-soluble metabolites are the main excretion through kidney.

Phosphatidylserine Packaging and Shipping

Packing: 25Kg/drum

Delivery: delivery within 3-5working days

Phosphatidylserine Storage

Avoiding light and drying.

Fire-fighting measures

5.1Extinguishing media

Suitable extinguishing media

Use water spray, alcohol-resistant foam, dry chemical or carbon dioxide.

5.2Specific hazards arising from the chemical

no data available

5.3Special protective actions for fire-fighters

Wear self-contained breathing apparatus for firefighting if necessary.

6.Accidental release measures

6.1Personal precautions, protective equipment and emergency procedures

Use personal protective equipment. Avoid dust formation. Avoid breathing vapours, mist or gas. Ensure adequate ventilation. Evacuate personnel to safe areas. Avoid breathing dust. For personal protection see section 8.

6.2Environmental precautions

Prevent further leakage or spillage if safe to do so. Do not let product enter drains. Discharge into the environment must be avoided.

6.3Methods and materials for containment and cleaning up

Pick up and arrange disposal. Sweep up and shovel. Keep in suitable, closed containers for disposal.