Merck
所有图片(1)

PHR1104

Supelco

L-天冬氨酸

Pharmaceutical Secondary Standard; Certified Reference Material

别名:
(S)-氨基丁二酸, (S)-(+)-氨基琥珀酸
线性分子式:
HO2CCH2CH(NH2)CO2H
CAS号:
分子量:
133.10
Beilstein:
1723530
EC 号:
MDL编号:
PubChem化学物质编号:
NACRES:
NA.24

质量水平

300

等级

certified reference material
pharmaceutical secondary standard

Agency

traceable to Ph. Eur. A1330000
traceable to USP 1043819

CofA

current certificate can be downloaded

technique(s)

HPLC: suitable
gas chromatography (GC): suitable

mp

>300 °C (dec.) (lit.)

application(s)

cleaning products
cosmetics
flavors and fragrances
food and beverages
personal care
pharmaceutical (small molecule)

格式

neat

储存温度

2-30°C

SMILES string

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

InChI

1S/C4H7NO4/c5-2(4(8)9)1-3(6)7/h2H,1,5H2,(H,6,7)(H,8,9)/t2-/m0/s1

InChI key

CKLJMWTZIZZHCS-REOHCLBHSA-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。L-天冬氨酸是一种非必需氨基酸。它参与尿素循环、克雷布斯循环和DNA代谢。L-天冬氨酸可用作治疗性重组蛋白和单克隆抗体商业生物制造的细胞培养基组分。

应用

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。

生化/生理作用

快速突触兴奋的主要神经递质。

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 CRM 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,请在下面的栏位中输入 LRAA7167。这只是一个示例证书,可能不是您收到的批次。

储存分类代码

13 - Non Combustible Solids

WGK

WGK 1

闪点(F)

Not applicable

闪点(C)

Not applicable

分析证书

请输入批号搜索分析证书(COA)。

原产地证书 (CofO)

请输入批号搜索原产地证书(COO)。

更多文件

Quotes and Ordering

Tamami Uejima et al.
Acta crystallographica. Section D, Biological crystallography, 69(Pt 3), 345-351 (2013-03-23)
Rab small GTPases regulate vesicle transport in eukaryotes by interacting with various effectors. Guanine nucleotide-exchange factor (GEF) catalyzes the transition from inactive GDP-bound Rab to active GTP-bound Rab. The existence of several GDP-bound intermediates containing the Arabidopsis thaliana Rab5 homologue
Guus B Erkens et al.
Nature, 502(7469), 119-123 (2013-10-05)
Excitatory amino acid transporters (EAATs) are secondary transport proteins that mediate the uptake of glutamate and other amino acids. EAATs fulfil an important role in neuronal signal transmission by clearing the excitatory neurotransmitters from the synaptic cleft after depolarization of
Ann-Louise Johansson et al.
Proceedings of the National Academy of Sciences of the United States of America, 110(22), 8912-8917 (2013-05-16)
Proton transfer across biological membranes underpins central processes in biological systems, such as energy conservation and transport of ions and molecules. In the membrane proteins involved in these processes, proton transfer takes place through specific pathways connecting the two sides
Yoshikatsu Kanai et al.
Molecular aspects of medicine, 34(2-3), 108-120 (2013-03-20)
Glutamate transporters play important roles in the termination of excitatory neurotransmission and in providing cells throughout the body with glutamate for metabolic purposes. The high-affinity glutamate transporters EAAC1 (SLC1A1), GLT1 (SLC1A2), GLAST (SLC1A3), EAAT4 (SLC1A6), and EAAT5 (SLC1A7) mediate the
Kenzo Aki et al.
PloS one, 8(3), e58515-e58515 (2013-03-19)
Although proteins consist exclusively of L-amino acids, we have reported that aspartyl (Asp) 58 and Asp 151 residues of αA-crystallin of eye lenses from elderly cataract donors are highly inverted and isomerized to D-β, D-α and L-β-Asp residues through succinimide

实验方案

GC Analysis of Amino Acids (as TBDMS Derivatives) on SLB®-5ms (20 m x 0.18 mm I.D., 0.18 μm), Fast GC Analysis

Separation of L-Alanine; Glycine; L-Valine; L-Leucine; L-Isoleucine; L-Proline; L-Methionine; L-Serine; L-Threonine; L-Phenylalanine; L-Aspartic acid; L-4-Hydroxyproline; L-Cysteine; L-Glutamic acid; L-Asparagine; L-Lysine; L-Glutamine; L-Histidine; L-Tyrosine; L-Tryptophan; L-Cystine

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