Product No.: AC154CAS: 616-91-1In Stock
N-乙酰-L-半胱氨酸 N-Acetyl-L-Cysteine
N-乙酰-L-半胱氨酸 N-Acetyl-L-Cysteine. Professional fine chemical raw material, one-stop online procurement. High standard quality control, supporting precise search and COA download.
Select Spec* COA batch numbers are updated in real-time
Select Spec
* COA batch numbers are updated in real-time5kg/Drum
$816.00
Stock: 100 unit
25kg/Drum
$3,876.00
Stock: 100 unit
Quantity
Remaining 200 unit
Selected Configuration1kg/Bag × 1
Total$244.00
Application Scenarios
CHO Cell CultureVaccine ProductionMonoclonal Antibody R&D
Quality Specifications
性状 Description
白色或类白色结晶性粉末，有类似蒜的臭气；有引湿性。本品在水或乙醇中易溶。White or almost white, crystalline powder; garlic smell; easily imbibe. Freely soluble in water or ethanol.
熔点 Melting point
104℃~110℃
比旋度[α]D20 Specific optical rotation[α]D20
+21.0° ~ +27.0°
鉴别 Identification
(1) 本品约 0.1g, 加 10%氢氧化钠溶液 2ml 溶解后, 加醋酸铅试液 1ml, 加热煮沸, 溶液渐显黄褐色, 继而产生黑色沉淀。It reacts with lead acetate test solution to give a yellow-brown color, then black precipitate. (2) 取本品约 10mg, 加氢氧化钠试液 1ml 溶解后, 加亚硝基铁氰化钠试液数滴, 摇匀, 即显深红色；放置后渐显黄色, 上层留有红色环, 振摇后又变成红色。It reacts with sodium nitroprusside to give a red color, after a while, change into yellow, with red link remaining in the surface layer, when shaking it turns into red again. (3) 本品的红外光吸收图谱应与对照的图谱（光谱集 7 图）一致。Compare the infrared absorption spectrum of the sample with that of the standard atlas 7.
酸度 pH
1.5 ~ 2.5
溶液的澄清度（透光率） Clarity of solution (Transmittance)
溶液澄清 Clear 透光率 Transmittance ≥98.0%
氯化物 Chloride
≤0.04%
干燥失重 Loss on drying
≤1.0%
炽灼残渣 Residue on ignition
≤0.1%
重金属 Heavy metals
≤0.001%
含量 Assay
98.0% ~ 102.0%
有关物质-最大单个杂质 Related substances-Maximum impurity
≤0.5%
有关物质-总有关物质 Related substances-Total impurities
≤1.0%
微生物限度-需氧菌总数 Microbiological examination-Total aerobic microbial count
≤1000cfu/g
微生物限度-霉菌和酵母菌总数 Microbiological examination-Mould and yeasts
≤100cfu/g