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文件

Y0000087

甲硝唑杂质A

Name: 甲硝唑杂质A
Brand: SIAL

European Pharmacopoeia (EP) Reference Standard

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别名:

2-甲基-4(5)-硝基咪唑

经验公式（希尔记法）:

C₄H₅N₃O₂

CAS号:

696-23-1

分子量:

127.10

Beilstein:

4032

MDL编号:

MFCD00151322

PubChem化学物质编号:

329830836

NACRES:

NA.24

等级

pharmaceutical primary standard

API类

metronidazole

制造商/商品名称

EDQM

mp

251-255 °C (lit.)

应用

pharmaceutical (small molecule)

格式

neat

储存温度

2-8°C

SMILES字符串

Cc1ncc([nH]1)[N+]([O-])=O

InChI

1S/C4H5N3O2/c1-3-5-2-4(6-3)7(8)9/h2H,1H3,(H,5,6)

InChI key

FFYTTYVSDVWNMY-UHFFFAOYSA-N

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一般描述

This product is provided as delivered and specified by the issuing Pharmacopoeia. All information provided in support of this product, including SDS and any product information leaflets have been developed and issued under the Authority of the Issuing Pharmacopoeia. For further information and support please go to the website of the issuing Pharmacopoeia.

应用

Metronidazole impurity A EP Reference standard, intended for use in laboratory tests only as specifically prescribed in the European Pharmacopoeia.

包装

The product is delivered as supplied by the issuing Pharmacopoeia. For the current unit quantity, please visit the EDQM reference substance catalogue.

其他说明

Sales restrictions may apply.

警示用语：

Warning

危险声明

H302

预防措施声明

P264 - P270 - P301 + P312 - P501

危险分类

Acute Tox. 4 Oral

储存分类代码

11 - Combustible Solids

WGK

WGK 3

闪点(°F)

Not applicable

闪点(°C)

Not applicable

分析证书(COA)

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示例

T1503

货号

25G

包装规格/数量

其它示例：

705578-5MG-PW

PL860-CGA/SHF-1EA

MMYOMAG-74K-13

1000309185

输入内容 1.000309185)

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[Determination of acid-base amphoteric dissociation constant of 2-methyl-5 (4)-nitroimidazole by UV-spectrophotometry].

S Yang

Hua xi yi ke da xue xue bao = Journal of West China University of Medical Sciences = Huaxi yike daxue xuebao, 30(3), 345-346 (2002-09-06)

The 2-methyl-5(4)-nitromidazole(BH) is an ampholyte with acid and base. It is an intermediate of metronidazole. The amphoteric dissociation constant of BH determined by equimolar UV-spectrophotometry. The acidic dissociation constant pKa is 9.64 +/- 0.04 and the basic dissociation constant pKb

[Synthesis and antibacterial activity of ciprofloxacin derivatives].

Fa-qing Ye et al.

Yao xue xue bao = Acta pharmaceutica Sinica, 40(2), 132-135 (2005-05-07)

To study the synthesis and antibacterial activity of ciprofloxacin derivatives. Ciprofloxacin derivatives were synthesized primarily from 2-methyl-5-nitroimidazol and ciprofloxacin through nucleophilic substitution. The antibacterial activity of the synthesized compounds were tested. Nine new compounds were synthesized. The structure of the

[Synthesis and antibacterial activity of pyridonecarboxylic acid derivatives containing 2-methyl-5-nitroimidazol].

Fa-qing Ye et al.

Yao xue xue bao = Acta pharmaceutica Sinica, 38(4), 260-263 (2003-08-02)

To study the synthesis and antibacterial activity of pyridonecarboxylic acid derivatives containing 2-methyl-5-nitroimidazol. Pyridonecarboxylic acid derivatives containing 2-methyl-5-nitroimidazol were synthesized primarily from 2-methyl-5-nitroimidazol, norfloxacin, ciprofloxacin, enoxacin via nucleophilic substitution and esterification. The antibacterial activity of the nine target compounds were

A comparative study on vibrational, conformational and electronic structure of 1,2-dimethyl-5-nitroimidazole and 2-methyl-5-nitroimidazole.

V Arjunan et al.

Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 97, 176-188 (2012-07-06)

The FTIR and FT-Raman spectra of 1,2-dimethyl-5-nitroimidazole and 2-methyl-5-nitroimidazole have been recorded in the regions 4000-400 and 4000-100 cm(-1), respectively. The conformational analyses were performed and the energies of the different possible conformers were determined. The geometry of different conformers

Radicals of nitroimidazole derivatives: pH dependence of rates of formation and decay related to acid-base equilibria.

Y Henry et al.

International journal of radiation biology and related studies in physics, chemistry, and medicine, 51(5), 797-809 (1987-05-01)

Three analogous 5-nitroimidazoles, having radiosensitizing and cytotoxic properties, have been studied by pulse-radiolysis in N2O-saturated aqueous formate solutions. Rates of formation of the radicals ImNO2-. are found to have little pH dependence. Decay of the radicals always follows second-order kinetics.

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