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Merck
CN

85884

链霉素 硫酸盐

tested according to Ph. Eur.

别名:

硫酸链霉素

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线性分子式:
C21H39N7O12 · 1.5 H2SO4
化学文摘社编号:
分子量:
728.69
EC Number:
223-286-0
UNSPSC Code:
51101500
PubChem Substance ID:
Beilstein/REAXYS Number:
3894995
MDL number:
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InChI key

QTENRWWVYAAPBI-YZTFXSNBSA-N

InChI

1S/2C21H39N7O12.3H2O4S/c2*1-5-21(36,4-30)16(40-17-9(26-2)13(34)10(31)6(3-29)38-17)18(37-5)39-15-8(28-20(24)25)11(32)7(27-19(22)23)12(33)14(15)35;3*1-5(2,3)4/h2*4-18,26,29,31-36H,3H2,1-2H3,(H4,22,23,27)(H4,24,25,28);3*(H2,1,2,3,4)/t2*5-,6-,7-,8+,9-,10-,11-,12+,13-,14-,15-,16-,17-,18-,21+;;;/m00.../s1

SMILES string

OS(O)(=O)=O.OS(O)(=O)=O.OS(O)(=O)=O.CN[C@H]1[C@H](O)[C@@H](O)[C@H](CO)O[C@H]1O[C@H]2[C@@H](O[C@@H](C)[C@]2(O)C=O)O[C@@H]3[C@@H](O)[C@H](O)[C@@H](NC(N)=N)[C@H](O)[C@H]3NC(N)=N.CN[C@H]4[C@H](O)[C@@H](O)[C@H](CO)O[C@H]4O[C@H]5[C@@H](O[C@@H](C)[C@]5(O)C=O)O[C@@H]6[C@@H](O)[C@H](O)[C@@H](NC(N)=N)[C@H](O)[C@H]6NC(N)=N

agency

tested according to Ph. Eur.

form

solid

potency

≥720 I.U. per mg (Calc. on dry substance)

anion traces

sulfate (SO42-): 18.0-21.5% (Calculated on dry substance)

antibiotic activity spectrum

Gram-negative bacteria, Gram-positive bacteria

mode of action

protein synthesis | interferes

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General description

Chemical structure: aminoglycoside

Application

Streptomycin is used to study mechanisms of streptomycin resistance and is often used together with penicillin and other agents to inhibit bacterial contamination in cell culture applications. It is recommended for use in molecular biology applications at 25-50μg/mL, in cell culture applications at 100 mg/L and in embryo culture at 50 mg/L.

Biochem/physiol Actions

作用机制:链霉素可通过与30S核糖体亚基的S12蛋白结合而抑制原核生物蛋白的合成,从而阻止了从模拟复合物向链延长核糖体的转变。 这会导致编码错误或抑制启动。

耐药性机制:rpsL这种S12核糖体蛋白基因中的突变可阻止链霉素与核糖体结合。 一种氨基糖苷磷酸转移酶也可使链霉素失活。

抗菌谱:链霉素能够对抗革兰氏阴性和革兰氏阳性菌。

Preparation Note

Stock solutions should be prepared directly in the vial with sterile water at concentrations between 20-25 mg/mL.

Other Notes

Keep container tightly closed in a dry and well-ventilated place.

Disclaimer

Solutions can be stored at 2-8°C for up to a month or at -20°C for more extended periods. At 37°C, solutions are stable for three days.

pictograms

Health hazardExclamation mark

signalword

Warning

Hazard Classifications

Acute Tox. 4 Oral - Repr. 2

存储类别

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

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

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