В наличии на складе л цистеин 99% оптом н ацетил л цистеин базовый белый порошок в предпочтительнее

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Products Description


Product name
L Cysteine
Appearance
white powder
CAS No.
52-90-4
Purity
99%
Grade
Food Grade,health supplements
MOQ
1Kg
Shelf life
2 Years
Storage
Store in cool & dry place, Keep away from strong light and heat.
Package
1Kg/Foil bag,25Kg/Drum




Cysteine has many important physiological functions in the human body.
It is one of the raw materials for protein synthesis and can be used to build various proteins needed by the human body. The
sulfhydryl group of cysteine (-SH) can oxidize with the sulfhydryl group of another cysteine to form a disulfide bond (-S-S-).
This disulfide bond is crucial for stabilizing the three-dimensional structure of proteins, such as keratin in hair, which has
many disulfide bonds to maintain its tough structure.
In addition, cysteine can regulate the metabolic process of cells, participate in the regulation of the activity of certain
enzymes, and help the human body to carry out normal physiological metabolism.



CERTIFICATE OF ANALYSIS


ANALYSIS
SPECIFICATION
RESULTS
Appearance
white powder
Complies
Odor
Characteristic
Complies
Tasted
Characteristic
Complies
Assay
99%
Complies
Sieve Analysis
100% pass 80 mesh
Complies
Loss on Drying
5% Max.
1.02%
Sulphated Ash
5% Max.
1.3%
Extract Solvent
Ethanol & Water
Complies
Heavy Metal
5ppm Max
Complies
As
2ppm Max
Complies
Residual Solvents
0.05% Max.
Negative
Microbiology
Total Plate Count
1000/g Max
Complies
Yeast & Mold
100/g Max
Complies
E.Coli
Negative
Complies
Salmonella
Negative
Complies




















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