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A9518

Sigma-Aldrich

氨苄西林 钠盐

同義詞:

氨苄青霉素 钠盐

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About This Item

經驗公式(希爾表示法):
C16H18N3NaO4S
CAS號碼:
分子量::
371.39
Beilstein:
4119211
EC號碼:
MDL號碼:
分類程式碼代碼:
12352107
PubChem物質ID:
NACRES:
NA.76

生物源

synthetic (chemical)

品質等級

形狀

powder

顏色

white to off-white

mp

215 °C (dec.) (lit.)

溶解度

water: 50 g/L

抗生素活性譜

Gram-negative bacteria
Gram-positive bacteria

應用

agriculture

作用方式

cell wall synthesis | interferes

儲存溫度

2-8°C

SMILES 字串

[Na+].CC1(C)SC2[C@H](NC(=O)[C@H](N)c3ccccc3)C(=O)N2[C@H]1C([O-])=O

InChI

1S/C16H19N3O4S.Na/c1-16(2)11(15(22)23)19-13(21)10(14(19)24-16)18-12(20)9(17)8-6-4-3-5-7-8;/h3-7,9-11,14H,17H2,1-2H3,(H,18,20)(H,22,23);/q;+1/p-1/t9-,10-,11+,14-;/m1./s1

InChI 密鑰

KLOHDWPABZXLGI-YWUHCJSESA-M

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一般說明

氨苄西林钠盐是超广谱β-内酰胺家族成员,是青霉素的半合成衍生物,具有广谱抗生素的作用。该β-内酰胺抗生素通过与青霉素结合蛋白(PBP)结合抑制细胞壁关键组分肽聚糖的合成,从而抑制细胞壁合成。氨苄西林钠盐具有抗多种革兰氏阳性菌和革兰氏阴性菌活性,包括大肠杆菌(E. coli)、β-内酰胺敏感VRE、耐万古霉素肠球菌(VRE)、金黄色葡萄球菌(Staphylococcus aureus)和肺炎链球菌(Streptococcus pneumoniae)。常被研究型实验室用于研究抗生素的耐药性和渗透性限制、多种抗生素之间的协同作用、大肠杆菌重组质粒的筛选和维持。

應用

氨苄西林钠盐已用于:
  • 突变和转化细胞的氨苄西林抗性筛选

生化/生理作用

作用方式:该ß-内酰胺抗生素通过灭活位于细菌的细胞膜内表面的转肽酶从而抑制细菌细胞壁合成。

耐药性机制:ß-内酰胺酶切开氨苄青霉素的ß-内酰胺环,使其失去活性。

抗菌谱:包括革兰氏阳性菌(类似青霉素)和革兰氏阴性菌(类似四环素和氯霉素)。

特點和優勢

  • 高品质抗生素,适合各种研究用途
  • 适于细胞生物学和生物化学研究。

注意

据报道,该产品在25°C、43%和81%相对湿度下可稳定6周。 另外的研究表明氨苄青霉素在溶液中的稳定性与pH、温度和缓冲液的性质有关。 当储存在pH值7以上时,它的活性很快就会丧失。 推荐最佳保存条件为2-8℃,pH 3.8-5,一周内其活性可保留90%。

準備報告

据报道,氨苄青霉素微溶于水,几乎不溶于酒精、氯仿、醚和固定油脂,但溶于稀酸或稀碱。 该溶液不应高压灭菌;原液应通过过滤消毒并冷冻保存,可稳定数月。

儲存和穩定性

Tightly closed. Dry. Keep locked up or in an area accessible only to qualified or authorized

其他說明

如需了解生化试剂系列的更多信息,请填写此表
将容器密封在干燥、通风良好的地方。储存类别(TRGS 510): 不可燃的固体

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象形圖

Health hazard

訊號詞

Danger

危險聲明

危險分類

Resp. Sens. 1A - Skin Sens. 1A

儲存類別代碼

11 - Combustible Solids

水污染物質分類(WGK)

WGK 3

閃點(°F)

Not applicable

閃點(°C)

Not applicable

個人防護裝備

dust mask type N95 (US), Eyeshields, Faceshields, Gloves


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