Merck
CN

PHR1105

Supelco

L-亮氨酸

Pharmaceutical Secondary Standard; Certified Reference Material

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别名:
(S)-2-氨基-4-甲基戊酸
线性分子式:
(CH3)2CHCH2CH(NH2)CO2H
CAS号:
分子量:
131.17
Beilstein:
1721722
EC 号:
MDL编号:
PubChem化学物质编号:
NACRES:
NA.24

等级

certified reference material
pharmaceutical secondary standard

质量水平

Agency

traceable to Ph. Eur. L0375000
traceable to USP 1357001

API family

leucine

CofA

current certificate can be downloaded

technique(s)

HPLC: suitable
gas chromatography (GC): suitable

mp

>300 °C (lit.)

application(s)

pharmaceutical (small molecule)

格式

neat

储存温度

2-8°C

SMILES string

CC(C)C[C@H](N)C(O)=O

InChI

1S/C6H13NO2/c1-4(2)3-5(7)6(8)9/h4-5H,3,7H2,1-2H3,(H,8,9)/t5-/m0/s1

InChI key

ROHFNLRQFUQHCH-YFKPBYRVSA-N

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一般描述

亮氨酸是一种非生糖必需氨基酸,是蛋白质的一种结构性成分。
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。

应用

L-亮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。
这些二级标准品是合格的认证标准物质(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

这些二级标准品可追溯至USP、EP(PhEur)和BP一级标准品。

其他说明

该认证参考物质(CRM)根据 ISO 17034ISO/IEC 17025进行生产和认证。所有关于客户关系管理的信息都可以在分析证书上找到。

附注

要查看该材料的分析证书示例,请在下方栏位输入 LRAA6929。这只是一个示例证书,可能不是您收到的批次。

推荐产品

Find a digital Reference Material for this product available on our online platform ChemisTwin® for NMR. You can use this digital equivalent on ChemisTwin® for your sample identity confirmation and compound quantification (with digital external standard). An NMR spectrum of this substance can be viewed and an online comparison against your sample can be performed with a few mouseclicks. Learn more here and start your free trial.

储存分类代码

11 - Combustible Solids

WGK

WGK 1

闪点(°F)

Not applicable

闪点(°C)

Not applicable


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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)
M Sakamoto et al.
The Journal of clinical endocrinology and metabolism, 56(1), 202-204 (1983-01-01)
Recent studies on the nucleotide sequence of cloned DNA complementary to mRNA for preproenkephalin from bovine adrenal medulla and human pheochromocytoma have revealed that this precursor molecule contains four copies of methionine-enkephalin (Met-Enk) and one copy each of leucine-enkephalin (Leu-Enk)
T Yoshimasa et al.
The Journal of clinical investigation, 69(3), 643-650 (1982-03-01)
To elucidate the physiological and pathophysiological significance of methionine- and leucine-enkephalin (Met-and Leu-enkephalin, respectively) in human sympathoadrenal system, the contents of these peptides in normal human sympathetic nervous system, adrenal medulla, and pheochromocytomas were determined by specific radioimmunoassays combined with
William I A Haynes et al.
The Journal of neuroscience : the official journal of the Society for Neuroscience, 33(11), 4804-4814 (2013-03-15)
The identification of a hyperdirect cortico-subthalamic nucleus connection highlighted the important role of the subthalamic nucleus (STN) in regulating behavior. However, this pathway was shown primarily from motor areas. Hyperdirect pathways associated with cognitive and motivational cortical regions are particularly
Marika Leenders et al.
Nutrition reviews, 69(11), 675-689 (2011-10-28)
Amino acids function as precursors for de novo protein synthesis. In addition, however, they play a key role as nutritional signals that regulate multiple cellular processes. There is ample in vitro and in vivo evidence showing that muscle tissue responds

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