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ITEMS | STANDARD |
Appearance | A white or almost white, crystalline powder or colourless crystals. |
Solubility | Freely soluble in water,practically insoluble in alcohol. |
Identification test (A,B) | Up to the STANDARD |
Appearance of solution | Clarity of solution:5% water solution should be clear |
Colour of solution:5% water solution should be not more intensively coloured than reference solution BY6 | |
Specific optical rotation | +14.0° to +16.0° |
Assay | 98.5-101.0% |
Chlorides | 200ppm max |
Sulphates | 300ppm max |
Ammonium | 200ppm max |
Iron | 10ppm max |
Heavy metals | 10ppm max |
Loss on drying | 0.5% max |
Sulphated ash | 0.1% max |
Ninhydrin-positive substances (TLC) | Up to the STANDARD |
세린(Serine)은 화학식이 HO2CCH(NH2)CH2OH인 유기화합물이다. 일반적으로 동물성 단백질에서 발견되는 20개의 아미노산 중 하나이며 포유류 단백질에서는 유일하게 L형 입체 이성질체만 발견된다. 이것은 불필수아미노산이며 체내에서 다른 대사 산물들(예를 들면 글리신)로부터 합성될 수 있다.
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