Certification: | QS, CCC, RoHS, ISO, CE |
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Shape: | Powder |
Usage: | Food Additives |
Customization: | Available |
Sample: | Free |
Function: | Nutrition Enhancer |
Samples: |
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Customization: |
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Suppliers with verified business licenses
Commodity Name | DL-Methionine |
CAS No. | 59-51-8 |
ITEMS |
STANDARD |
TEST RESULT |
Appearance |
White crystals or crystalline powder |
Conforms |
Assay |
99.0% ~ 101.0% |
99.90% |
Specific optical rotation |
+22.4°~ +24.8° |
+23.7° |
pH value |
5.6~6.1 |
6.0 |
Loss on drying |
≤ 0.3% |
0.13% |
Heavy metals(Pb) |
≤15ppm |
5 ppm |
Residue on ignition |
≤0.40% |
0.03% |
Chloride (as CL) |
≤0.05% |
0.01% |
Sulfate (SO4),(as SO4) |
≤0.03% |
0.005% |
Iron (as Fe) |
≤30ppm |
7ppm |
Organic volatile impurities |
Meet the requirement |
Conforms |
Identification |
Infrared absorption |
Conforms |
1. What's your delivery time?
A: Within 5 working days.
2.Can I get the sample before placing the order?
A: Of course, you just need to tell us the address and the number of samples you need.
3. What kind of payment terms do you accept?
A: TT or L/C for payment.
4. Where is your shipping port?
A: Tianjinxingang/Qingdao port.
Suppliers with verified business licenses