所有图片(1)

PHR1108

Supelco

L-组氨酸

Pharmaceutical Secondary Standard; Certified Reference Material

别名:
(S)-2-氨基-3-(4-咪唑基)丙酸, NSC 137773
Empirical Formula (Hill Notation):
C6H9N3O2
CAS号:
分子量:
155.15
Beilstein:
84088
EC 号:
MDL编号:
eCl@ss:
32160406
PubChem化学物质编号:
NACRES:
NA.24

质量水平

300

等级

certified reference material
pharmaceutical secondary standard

CofA

current certificate can be downloaded

应用

HPLC: suitable
gas chromatography (GC): suitable

mp

282 °C (dec.) (lit.)

特色行业

Cleaning Products
Cosmetics
Flavors and Fragrances
Food and Beverages
Personal Care
Pharmaceutical (small molecule)

格式

neat

药典可追溯性

traceable to PhEur H0750000
traceable to USP 1308505

SMILES string

N[C@@H](Cc1c[nH]cn1)C(O)=O

InChI

1S/C6H9N3O2/c7-5(6(10)11)1-4-2-8-3-9-4/h2-3,5H,1,7H2,(H,8,9)(H,10,11)/t5-/m0/s1

InChI key

HNDVDQJCIGZPNO-YFKPBYRVSA-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-组氨酸是一种必需氨基酸,广泛存在于酶的活性部位。它可与金属离子结合,并可能有助于铜的运输。它还在蛋白质结合位点上对血红素基团、大分子和磷酸基团的结合起着重要作用。

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

组胺的前体,经组氨酸脱羧酶作用可生成组胺。

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,请在下面的栏位中输入LRAA7159。这只是一个示例证书,可能不是您收到的批次。

Storage Class Code

11 - Combustible Solids

WGK

WGK 1

闪点(F)

Not applicable

闪点(C)

Not applicable

分析证书

原产地证书 (CofO)

Shweta Singh et al.
Microbial cell factories, 7, 28-28 (2008-10-14)
The large-scale production of G-protein coupled receptors (GPCRs) for functional and structural studies remains a challenge. Recent successes have been made in the expression of a range of GPCRs using Pichia pastoris as an expression host. P. pastoris has a...
Camilla Hofström et al.
Journal of medicinal chemistry, 56(12), 4966-4974 (2013-05-23)
Engineered affibody molecules can be used for high contrast in vivo molecular imaging. Extending a recombinantly produced HER2 binding affibody molecule with a hexa-histidine tag allows for convenient purification by immobilized metal-ion affinity chromatography and labeling with [(99m)Tc(CO)3](+) but increases...
Pawel Swietach et al.
Proceedings of the National Academy of Sciences of the United States of America, 110(22), E2064-E2073 (2013-05-17)
Ca(2+) signaling regulates cell function. This is subject to modulation by H(+) ions that are universal end-products of metabolism. Due to slow diffusion and common buffers, changes in cytoplasmic [Ca(2+)] ([Ca(2+)]i) or [H(+)] ([H(+)]i) can become compartmentalized, leading potentially to...
H M Golder et al.
Journal of dairy science, 97(8), 5131-5150 (2014-06-03)
Ruminal bacterial community composition (BCC) and its associations with ruminal fermentation measures were studied in dairy heifers challenged with combinations of grain, fructose, and histidine in a partial factorial study. Holstein-Friesian heifers (n=30) were randomly allocated to 5 triticale grain-based...
Tomas F M Kuijpers et al.
The FEBS journal, 280(23), 6184-6195 (2013-10-12)
Sulfite salts are widely used as antibrowning agents in food processing. Nevertheless, the exact mechanism by which sulfite prevents enzymatic browning has remained unknown. Here, we show that sodium hydrogen sulfite (NaHSO3) irreversibly blocks the active site of tyrosinase from...

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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