Geneticin (G418 Sulfate)

Catalog No.S3028

Geneticin blocks polypeptide synthesis by inhibiting the elongation step in both prokaryotic and eukaryotic cells.

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Geneticin (G418 Sulfate) Chemical Structure

Geneticin (G418 Sulfate) Chemical Structure
Molecular Weight: 692.71

Validation & Quality Control

Quality Control & MSDS

Product Information

Product Description

Biological Activity

Description Geneticin blocks polypeptide synthesis by inhibiting the elongation step in both prokaryotic and eukaryotic cells.
In vitro G418 is an inhibitor of many pro- and eukaryotes at concentrations from 1-300 microgram/ml. Resistance to G418 conferring by the neo gene from Tn5 encoding an aminoglycoside 3'-phosphotransferase, APT 3' II is commonly used in laboratory research to select genetically engineered cells. [1] In general for bacteria and algae concentrations of 5 mg/L or less are used, for mammalian cells concentrations of approximately 400 mg/L are used for selection and 200 mg/L for maintenance. Resistant clones selection could require from 1 to up to 3 weeks. [2]
In vivo Doses of G418 of between 40 and 80 mg/kg for three consecutive days are sufficient to eliminate all nontransfected T. brucei brucei parasites from infected mice. [3]

Protocol(Only for Reference)

Animal Study: [3]

Animal Models Sublethally irradiated mice with bloodstream forms of T. brucei brucei GUTat 3.1 and T. brucei brucei GUTat 3.1/BBR3.
Formulation In sterile water
Dosages 10, 20, 30, 40, 50, or 80 mg/kg
Administration I.P.

Conversion of different model animals based on BSA (Value based on data from FDA Draft Guidelines)

SpeciesMouseRatRabbitGuinea pigHamsterDog
Weight (kg)
Body Surface Area (m2)0.0070.0250.
Km factor36128520
Animal A (mg/kg) = Animal B (mg/kg) multiplied by  Animal B Km
Animal A Km

For example, to modify the dose of resveratrol used for a mouse (22.4 mg/kg) to a dose based on the BSA for a rat, multiply 22.4 mg/kg by the Km factor for a mouse and then divide by the Km factor for a rat. This calculation results in a rat equivalent dose for resveratrol of 11.2 mg/kg.

Rat dose (mg/kg) = mouse dose (22.4 mg/kg) ×  mouse Km(3)  = 11.2 mg/kg
rat Km(6)


[1] Davies J, et al. Am J Trop Med Hyg, 1980, 29(5 Suppl), 1089-1092

[2] Li Y, et al. World J Gastroenterol, 2003, 9(10), 2174-2177.

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Chemical Information

Download Geneticin (G418 Sulfate) SDF
Molecular Weight (MW) 692.71


CAS No. 108321-42-2
Storage 3 years -20℃powder
2 years -80℃in solvent
Synonyms N/A
Solubility (25°C) * In vitro Water 100 mg/mL warming (144.36 mM)
DMSO <1 mg/mL
Ethanol <1 mg/mL
In vivo Saline 30 mg/mL
* <1 mg/ml means slightly soluble or insoluble.
* Please note that Selleck tests the solubility of all compounds in-house, and the actual solubility may differ slightly from published values. This is normal and is due to slight batch-to-batch variations.
Chemical Name D-Streptamine, O-2-amino-2,7-dideoxy-D-glycero-α-D-gluco-heptopyranosyl-(1→4)-O-[3-deoxy-4-C-methyl-3-(methylamino)-β-L-arabinopyranosyl-(1→6)]-2-deoxy-, sulfate (1:2)

Tech Support

Answers to questions you may have can be found in the inhibitor handling instructions. Topics include how to prepare stock solutions, how to store inhibitors, and issues that need special attention for cell-based assays and animal experiments.

Tel: +1-832-582-8158 Ext:3

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Cell Lines Assay Type Concentration Incubation Time Formulation Activity Description PMID
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