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Merck

C1389

Sigma-Aldrich

羧苄青霉素 二钠盐

89.0-100.5% anhydrous basis

别名:

羧苄青霉素二钠, α-Carboxybenzylpenicillin disodium salt 二钠盐

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About This Item

经验公式(希尔记法):
C17H16N2Na2O6S
CAS号:
分子量:
422.36
Beilstein:
5722128
EC號碼:
MDL號碼:
分類程式碼代碼:
51282413
PubChem物質ID:
NACRES:
NA.76

生物源

synthetic (chemical)

品質等級

化驗

89.0-100.5% anhydrous basis

形狀

powder

顏色

white to off-white

溶解度

H2O: 50 mg/mL

抗生素活性譜

Gram-negative bacteria
Gram-positive bacteria

作用方式

cell wall synthesis | interferes

儲存溫度

2-8°C

SMILES 字串

[Na+].[Na+].CC1(C)S[C@@H]2[C@H](NC(=O)C(C([O-])=O)c3ccccc3)C(=O)N2[C@H]1C([O-])=O

InChI

1S/C17H18N2O6S.2Na/c1-17(2)11(16(24)25)19-13(21)10(14(19)26-17)18-12(20)9(15(22)23)8-6-4-3-5-7-8;;/h3-7,9-11,14H,1-2H3,(H,18,20)(H,22,23)(H,24,25);;/q;2*+1/p-2/t9?,10-,11+,14-;;/m1../s1

InChI 密鑰

RTYJTGSCYUUYAL-YCAHSCEMSA-L

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一般說明

羧苄青霉素是一种半合成、广谱羧基青霉素抗生素,具有杀菌和抗β-内酰胺酶活性。它是一种广谱抗生素,即它能够有效对抗各种细菌,包括革兰氏阳性和革兰氏阴性细菌。羧苄青霉素对铜绿假单胞菌特别有效,铜绿假单胞菌是一种可以耐受其它抗生素的革兰氏阴性菌。

羧苄青霉素常用于细胞生物学应用,可防止细菌污染物的生长。在微生物学中,它也用于选择以含有编码β-内酰胺酶基因的载体转化的细菌,这使其耐受羧苄青霉素。

應用

羧苄青霉素二钠盐已用于:

  • 制备LB琼脂平板和培养基
  • 作为培养基中的选择剂用于防止细菌污染物的生长
  • 开发单克隆抗体的研究

生化/生理作用

羧苄青霉素通过打开内酰胺环,酰化青霉素敏感性转肽酶(penicillin-sensitive transpeptidase)的C-末端结构域。这种钝化作用防止了肽聚糖束(peptidoglycan strand)的交联,从而抑制了细菌细胞壁合成的第三和最后阶段。这导致细菌细胞壁的不完全合成,最终导致细胞溶解。
作用机制:羧青霉素抗生素,可通过灭活细菌细胞膜内表面的转肽酶来抑制细菌细胞壁合成(肽聚糖交联)。


抗微生物谱:具有抗革兰氏阳性和革兰氏阴性细菌活性。

特點和優勢

  • 具有杀菌和抗β-内酰胺酶活性的广谱抗生素
  • 有效对抗各种细菌,包括铜绿假单胞菌
  • 常用于细胞生物学和生物化学应用
  • 提供优于氨苄青霉素的稳定性

儲存和穩定性

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

分析報告

在 37°C 下可稳定保存 3 天

其他說明

保存于密闭容器内,置于干燥通风处。
如需了解生化试剂系列的更多信息,请填写此表

象形圖

Health hazard

訊號詞

Danger

危險聲明

危險分類

Resp. Sens. 1 - Skin Sens. 1

儲存類別代碼

11 - Combustible Solids

水污染物質分類(WGK)

WGK 2

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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