Molecular Formula: C5H11NO2S
CAS: 59-51-8
Properties: white thin lamellae or crystalline powder. Special odorless, slightly sweet. No optical activity. Stability in heat and air. Instability in strong acid and cause demethylation. Soluble in water, acid and alkali solution. Difficult to soluble in ethanol, insoluble in ether. Essential amino acid.
Usage: nutritional supplements. Its effect was equal to L-Methionine
Application: widely used in seasoning and health food.
Quality Standard: Q/XZX02-2006
|
Items |
Standard |
|
appearance |
white thin lamellae |
|
content(%) |
98.5―101.5 |
|
heavy metal(lead, ppm) |
25 max |
|
arsenic |
1 max |
|
drying shrinkage |
0.3 max |
|
ignition residue |
0.1 max |
|
chlorid(chlorine, max) |
0.02 max |
|
acidity(pH value) |
5.6―6.1 |
|
clarity |
qualified |
Packaging: 25KG / box
Transportation: avoid sun and rain, be transported as general chemicals but with no toxic, hazard materials.
Storage: stored in dry clean dark environment, and not be mixed with toxic substances to avoid contamination. Shelf life: two years |
