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> 95 % pure by SDS-PAGE

Bubbly/glassy residue due to lyophilisation in 5% sucrose to increase product stability

Contents when reconstituted in 250ul sterile distilled water will contain : Toxin B at a concentration of 0.2mg/ml in 0.05M Hepes , 0 .15M NaCI and 5% sucrose

2 pg/ml ( lowest point at which rounded cells are observed )

Lyophilised vial: 1 year after date of receipt 

Reconstituted liquid: 1 month

Reconstituted liquid can be frozen at -80°C to extend stability to 1 year; however every freeze/thaw cycle will cause increased aggregation. Avoid multiple freeze/thaw cycles and multiple temperature fluctuations

Lyophilised vial: +2°C to  +8°C

Reconstituted liquid: +2°C to  +8°C