Product Name: O-phospho-L-serine

Alias: dexfosfoserine; L-PHOSPHOSERINE; H-Ser(PO3H2)-OH; Phospho-L-serine; L-O-Phosphoserine

CAS No.: 407-41-0

Molecular Formula: C3H8NO6P

Molecular Weight: 185.07

EINECS No.: 206-986-0

Brief Introduction:

O-Phospho-L-serine, also known as L-O-phosphoserine or phosphorylated serine, which is the direct precursor substance in the synthesis process of L-serin. It is an agonist of type III metabotropic glutamate receptors (mGluR4, mGluR7, mGluR8).

Specifications of our O-Phospho-L-Serine(H-Ser(PO3H2)-OH):

Test Items	Specifications
Description	White or off-white crystalline powder
Identification	The location and the colour of the main spot in the test solution should be the same as that in the control solution
Solubility(1% w/v)	Complete
pH Value(1% w/v)	1.5 ~ 2.5
Transparency(2% w/v 430nm)	Not less than 95.0%
Water by KF	Not more than 1.0%
Specific Rotation	+14.0° ~ +16.0°
Inorganic Phosphorus	Not more than 0.2%
Sulphate	Not more than 200ppm
Chloride	Not more than 200ppm
Assay(NaOH, Potentiometric)	98.0% ~ 101.0%
L-Serine Content(TLC)	Not more than 1%
Each Unknown Impurity(TLC)	Not more than 0.1%
Total Impurities(TLC)	Not more than 1%
Residual Solvents(Methyl Alcohol)	Not more than 1000ppm

Effect:
Inhibitory effect on dementia.

Packaging:
1kg net aluminum foil bag, 5kg net aluminum foil bag or 25kg net fibre drum.

Storage & Transportation:
Preserved in unopened original containers in a cool dry place before using, kept away from direct sunlight, heat and moisture; prevented from rain, strong acids or alkalis. Handle with care during transportation to prevent damage to the packages.

Shelf Life:
24 months if stored under above conditions.