跳转至内容
Merck
CN
所有图片(1)

主要文件

查看所有文档

PHR1056

Supelco

甲氧苄啶

Pharmaceutical Secondary Standard; Certified Reference Material

别名:

2,4-二氨基-5-(3,4,5-三甲氧基苄基)嘧啶, NSC 106568

登录查看公司和协议定价
所有图片(1)

About This Item

经验公式（希尔记法）:
C14H18N4O3
CAS号:
738-70-5
分子量:
290.32
Beilstein:
625127
EC 号:
212-006-2
MDL编号:
MFCD00036761
UNSPSC代码:
41116107
PubChem化学物质编号:
329823086
NACRES:
NA.24

等级

certified reference material
pharmaceutical secondary standard

质量水平

300

Agency

traceable to BP 344
traceable to Ph. Eur. T220000
traceable to USP 1692505

API类

trimethoprim

CofA

current certificate can be downloaded

技术

HPLC: suitable
gas chromatography (GC): suitable

应用

pharmaceutical (small molecule)

包装形式

neat

储存温度

2-30°C

SMILES字符串

COc1cc(Cc2cnc(N)nc2N)cc(OC)c1OC

InChI

1S/C14H18N4O3/c1-19-10-5-8(6-11(20-2)12(10)21-3)4-9-7-17-14(16)18-13(9)15/h5-7H,4H2,1-3H3,(H4,15,16,17,18)

InChI key

IEDVJHCEMCRBQM-UHFFFAOYSA-N

正在寻找类似产品? 访问 产品对比指南

相关类别

一般描述

用于质量控制的已认证的药物二级标准，为制药实验室和制造商提供了药典基本标准的一种方便且成本效益好的替代品。甲氧苄啶是一种合成的抗菌剂，对大多数需氧革兰氏阴性和革兰氏阳性细菌具有体外抗菌活性。它的作用方式涉及到抑制二氢叶酸还原酶，这是一种可在微生物和真核细胞中催化将二氢叶酸还原为四氢叶酸的酶。

应用

甲氧苄啶可作为药物参考标准品，通过色谱以及可见光和紫外分光光度技术对药物制剂中的分析物进行测定。
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。
主要作为抗细菌剂。 二氢叶酸还原酶抑制活性和原核酶选择性。

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) 按照 ISO 17034 和 ISO/IEC 17025 生产和认证。所有关于此 CRM 的信息均记载在分析证书中。

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 LRAA7172。这只是一个示例证书，可能不是您收到的批次。

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。

象形图

Health hazardExclamation mark
GHS08,GHS07

警示用语：

Warning

危险声明

H302,H361d

危险分类

Acute Tox. 4 Oral - Repr. 2

储存分类代码

11 - Combustible Solids

WGK

WGK 3

闪点(°F)

Not applicable

闪点(°C)

Not applicable

从最新的版本中选择一种：

分析证书(COA)

Lot/Batch Number

抱歉，我们目前尚未线上提供该产品的COA。

如需帮助，请联系 客户支持

已有该产品？

在文件库中查找您最近购买产品的文档。

访问文档库

  1. Which document(s) contains shelf-life or expiration date information for a given product?

    If available for a given product, the recommended re-test date or the expiration date can be found on the Certificate of Analysis.

  2. How do I get lot-specific information or a Certificate of Analysis?

    The lot specific COA document can be found by entering the lot number above under the "Documents" section.

  3. How do I find price and availability?

    There are several ways to find pricing and availability for our products. Once you log onto our website, you will find the price and availability displayed on the product detail page. You can contact any of our Customer Sales and Service offices to receive a quote.  USA customers:  1-800-325-3010 or view local office numbers.

  4. What is the Department of Transportation shipping information for this product?

    Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product. 

  5. Is Trimethoprim stable in solution?

    Triemethoprim in a solution of 52% N,N dimethylacetamide:48% propylene glycol at 50 mg/ml is stable when stored at 25° C. There is only a 10% degradation of trimethoprim under these conditions after 885 days.

  6. My question is not addressed here, how can I contact Technical Service for assistance?

    Ask a Scientist here.

Determination of sulfamethoxazole and trimethoprim in pharmaceuticals by visible and UV spectrophotometry
Shamsa F and Amani L
Iranian Journal of Pharmaceutical Research : IJPR, 537(1-2), 31-36 (2010)
Simultaneous LC determination of trimethoprim and sulphamethoxazole in pharmaceutical formulations
Akay C and Ozkan SA
Journal of Pharmaceutical and Biomedical Analysis, 30(4), 1207-1213 (2002)
Trimethoprim resistance.
Huovinen P
Antimicrobial Agents and Chemotherapy, 31(10), 1451-1456 (1987)
Comparison of trimethoprim molecularly imprinted polymers in bulk and in sphere as the sorbent for solid-phase extraction and extraction of trimethoprim from human urine and pharmaceutical tablet and their determination by high-performance liquid chromatography
Hu SG, et al.
Analytica Chimica Acta, 537(1-2), 215-222 (2005)
Ivan Senta et al.
Water research, 47(2), 705-714 (2012-11-29)
Comprehensive study on the occurrence and fate of several classes of antimicrobials, including sulfonamides, trimethoprim, fluoroquinolones and macrolides, in Croatian municipal wastewaters was performed using an integrated approach, which comprised analysis of both dissolved and particulate fractions. A nation-wide screening
查看所有相关文献

我们的科学家团队拥有各种研究领域经验，包括生命科学、材料科学、化学合成、色谱、分析及许多其他领域.

联系技术服务部门