推荐产品
等级
certified reference material
pharmaceutical secondary standard
质量水平
Agency
traceable to USP 1708503
API类
valine
CofA
current certificate can be downloaded
技术
HPLC: suitable
gas chromatography (GC): suitable
mp
295-300 °C (subl.) (lit.)
应用
pharmaceutical (small molecule)
格式
neat
储存温度
2-30°C
SMILES字符串
CC(C)[C@H](N)C(O)=O
InChI
1S/C5H11NO2/c1-3(2)4(6)5(7)8/h3-4H,6H2,1-2H3,(H,7,8)/t4-/m0/s1
InChI key
KZSNJWFQEVHDMF-BYPYZUCNSA-N
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一般描述
用于质量控制的制药二级标准品，为制药实验室和制造商制备内部工作标准品提供了一种方便、高性价比的替代方案。
缬氨酸是必需氨基酸，参与谷氨酰胺和丙氨酸的生物合成。缬氨酸是支链氨基酸（BCAA），维持着BCAA之间的平衡。L-缬氨酸是一种能量燃料。
应用
L-缬氨酸可用作高效液相色谱技术定量检测药物制剂中分析物的药物参考标准品。
这些二级标准品是经认证过的有证标准物质（CRM）。它们适用于多种分析应用，包括但不限于药物释放测试、药物的定性和定量分析方法开发、食品和饮料质量控制检测以及其他校准需求。
分析说明
这些二级标准品可溯源到USP、EP（PhEur）或BP一级标准品。
其他说明
分析物的数值在批次间变化很大。
该认证参考物质（CRM）根据ISO 17034 和 ISO/IEC 17025进行生产和认证。有关此CRM使用的所有信息均可在分析证书上找到。
附注
要查看此物质的示例分析证书，请在下面的空格中输入 LRAA7145。这只是一个示例证书，可能与您收到的批次不符。
推荐产品
在我们的NMR在线平台ChemisTwin®上可以找到本品对应的数字化标准物质。您可使用ChemisTwin®上的数字等效品鉴定您的样品并进行定量分析（使用数字化外标）。可查看该物质的NMR谱图，只需点击几次鼠标，就能进行在线样品比对。欢迎点击了解更多，开启免费试用之旅。
WGK
WGK 1
闪点(°F)
Not applicable
闪点(°C)
Not applicable
HPLC-fluorescence determination of amino acids in pharmaceuticals after pre-column derivatization with phanquinone
Gatti.R, et al.
Journal of Pharmaceutical and Biomedical Analysis, 35(2), 339-348 (2004)
Sonia Jego et al.
Nature neuroscience, 16(11), 1637-1643 (2013-09-24)
Rapid-eye movement (REM) sleep correlates with neuronal activity in the brainstem, basal forebrain and lateral hypothalamus. Lateral hypothalamus melanin-concentrating hormone (MCH)-expressing neurons are active during sleep, but their effects on REM sleep remain unclear. Using optogenetic tools in newly generated
Shankar Sachidhanandam et al.
Nature neuroscience, 16(11), 1671-1677 (2013-10-08)
Neocortical activity can evoke sensory percepts, but the cellular mechanisms remain poorly understood. We trained mice to detect single brief whisker stimuli and report perceived stimuli by licking to obtain a reward. Pharmacological inactivation and optogenetic stimulation demonstrated a causal
Ihab Daou et al.
The Journal of neuroscience : the official journal of the Society for Neuroscience, 33(47), 18631-18640 (2013-11-22)
We report a novel model in which remote activation of peripheral nociceptive pathways in transgenic mice is achieved optogenetically, without any external noxious stimulus or injury. Taking advantage of a binary genetic approach, we selectively targeted Nav1.8(+) sensory neurons for
Felix Stickel et al.
Archives of internal medicine, 165(16), 1835-1840 (2005-09-15)
Oxidative stress plays an important pathogenic role in hereditary hemochromatosis (HHC) and chronic hepatitis C virus infection (CHC). Several enzymes involved in the degradation of reactive oxidants and xenobiotics, such as glutathione S-transferase P1 (GSTP1) and manganese superoxide dismutase (MnSOD)
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