N-乙酰-L-半* 基本信息:
Cas號 | 分子式 | 分子量 | 別名 |
616-91-1 | C5H9NO3S;HSCH2CH(NHCOCH3)CO2H | 163.19 | N-乙酰-L-半* ;N-乙酰半*,乙酰半*,N-乙酰基-L-半* |
說明介紹:
性狀 易溶于水和乙醇。有類似蒜的臭氣,味酸,有吸濕性。
質(zhì)量標(biāo)準(zhǔn)
99%:
外觀Appearance 白色結(jié)晶或結(jié)晶粉末
紅外光譜鑒別Infrared spectrometry 和對照品匹配
純度Purity ≥99.0% (HPLC)
熔點Melting point 108°C - 113°C
比旋光度Specific rotation [a]20/D +4.5° ~ +6.5°(c=2, H2O)
水溶解試驗Solubility in Water 溶液透明
灰分Ash
品級Grade 細(xì)胞培養(yǎng)級
(for cell culture tested, ≥99.0% (HPLC))
外觀Appearance 白色至類白色粉末
紅外光譜鑒別Infrared spectrometry Conforms to standard
純度Purity ≥99.0% (HPLC)
水溶解試驗solubility in water clear,colorless,100 mg plus 1 ml of water
水分water ≤3%(K.F)
細(xì)胞培養(yǎng)測試Cell culture test pass
assay (dry basis) 98.5 to 101.0%
solubility in water 0.5 G /10 ML in water, clear, colorless
Specific rotation [a]20/D +21.3°~ +27.0°(C=5, Phosphate buffered saline)
zinc content ≤10 ppm
heavy metals ≤10 ppm
loss on drying ≤1.00%
residue on ignition ≤0.20%
l-cystine ≤0.5%
l-cysteine ≤0.5%
n,n'diacetyl-l-cystine ≤0.5%
n,s-diacetyl-l- cysteine ≤0.5%
other impurities ≤0.5% (each)
total impurities ≤0.5%
organic volatiles impurities conforms by certification
ph test 2.0 to 2.8 (1g in 100ml water)
endotoxin assay ≤1 eu/mg
biochemical toxicity passes
note meets usp, ep requirements
貯存 密封保存
用途 抗氧劑和粘多糖類試劑。有報道稱能阻止神經(jīng)細(xì)胞凋亡,但卻誘發(fā)平滑肌細(xì)胞凋亡,阻止HIV復(fù)制。可能是微粒體*轉(zhuǎn)移酶的底物。
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