A8601

G 418 disulfate salt

Biotechnology Performance Certified, suitable for cell culture, suitable for plant cell culture

• Synonym(s): Antibiotic G418
• Empirical Formula (Hill Notation): C₂₀H₄₀N₄O₁₀ · 2H₂SO₄
• CAS Number: 108321-42-2
• Molecular Weight: 692.71
• MDL number: MFCD00058314
• UNSPSC Code: 51101500

Properties

• grade: Biotechnology Performance Certified
• form: powder
• potency: 450 units/mg
• mol wt: 692.7
• technique(s): cell culture | mammalian: suitable; cell culture | plant: suitable
• impurities: endotoxin, tested
• color: white to off-white
• solubility: water: soluble 50 mg/mL, clear to slightly hazy, colorless to faint yellow or tan
• mode of action: protein synthesis | interferes
• storage temp.: 2-8°C
• SMILES string: OS(O)(=O)=O.OS(O)(=O)=O.CN[C@H]1[C@H](O)[C@@H](OC[C@@]1(C)O)O[C@H]2[C@H](N)C[C@H](N)[C@@H](O[C@H]3O[C@H]([C@H](C)O)[C@@H](O)[C@H](O)[C@H]3N)[C@@H]2O
• InChI: 1S/C20H40N4O10.2H2O4S/c1-6(25)14-11(27)10(26)9(23)18(32-14)33-15-7(21)4-8(22)16(12(15)28)34-19-13(29)17(24-3)20(2,30)5-31-19;2*1-5(2,3)4/h6-19,24-30H,4-5,21-23H2,1-3H3;2*(H2,1,2,3,4)/t6?,7-,8+,9+,10+,11-,12-,13-,14+,15+,16-,17-,18+,19-,20+;;/m0../s1
• InChI key: UHEPSJJJMTWUCP-NKCAIAFTSA-N

Description

General description

Chemical structure: aminoglycoside

Application

G 418 is an aminoglycoside antibiotic similar in structure to gentamycin. It is normally toxic towards eukaryotic and prokaryotic cells, but is useful for selection of cells stably transfected with neomycin resistance gene (Neo). The optimal concentration for selection and maintenance must be determined for each cell line. For bacteria and algae, concentrations of 5 μg/ml or less are recommended. Animal cells may require up to 300-500 μg/ml.

Typically, resistance is conferred by one of two dominant genes of bacterial origin, which can be expressed in eukaryotic cells. Cells that are multiplying will be affected sooner than those that are quiescent. Cells in log phase may require three to seven days for selection. In general, concentrations of approximately 400 μg/ml for selection and 200 μg/ml for maintenance are required for mammalian cells.

Biochem/physiol Actions

Used for selection of G418 resistant transformed cells in molecular biology applications.

Safety Information

• pictograms: GHS08
• signalword: Danger
• hcodes: H317,H334
• pcodes: P261 - P272 - P280 - P284 - P302 + P352 - P333 + P313
• Hazard Classifications: Resp. Sens. 1 - Skin Sens. 1
• Storage Class: 11 - Combustible Solids
• wgk_germany: WGK 3
• ppe: Eyeshields, Gloves, type N95 (US)