≥1 Kilograms
$55.00
DL-Methionine is white, crystalline platelets or powder having a characteristic odor. one g dissolves in about 30 ml of water. it is soluble in dilute acids and alkali hydroxides in solutions. it is very slightly soluble in alcohol, and practically insoluble in ethyl ether.
quality standards: fcciv, ep4 and bp2001 etc.
DL-Methionine is a kind of important amino acid . It's mainly used in compounding medicines and infusion solution of compounded amino acid. In pharmaceutical industry, its synthetic medicines are used for treating cirrhosis , drug intoxication, etc.
| ITEM | STANDARD |
| Appearance | White Crystalline Powder |
| Assay (on dry matter) % | 98.5-101.5 |
| Clarity of Solution | Clear, colorless |
| Transmittance ≥% | 98.0 |
| PH Value(1g/100ml in water) | 5.4-6.1 |
| Chloride(As Cl) ≤ % | 0.05 |
| Heavy Metals(As Pb) ≤ % | 0.002 |
| Lead (As Pb) ≤ % | 0.001 |
| Arsenic (As AS) ≤ % | 0.00015 |
| Sulfate(SO4) ≤ % | 0.02 |
| Ammonium( As NH4) ≤ % | 0.01 |
| Loss on drying ≤ % | 0.5 |
| Residue on ignition(as sulphate ash) ≤ % | 0.1 |
| Organic Volatile Impurities | Meets the requirement |
Qingdao Sigma chemical Co., Ltd is is a global chemical industry manufacturers and suppliers of pharmaceuticals and intermediates, food and feed additives, herbal extracts, agrochemicals and fine chemicals etc.
The aim of Qingdao Sigma chemical Co., Ltd is a quality policy that "Elements in the system all have been satisfied, Personnel has been trained; Every batch of material is checked, Each procedure guarantees the quality; Every bag of our products is top grade, Service is thoughtful all the time, quality and reputation to increase market share and promote enterprise development. The quality, colors and forms of our products have reached a high level in related chemical industry, which relies on characteristic and advanced processing technology and it has gained a high and reliable reputation from customers at both quality and services.
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