Benzalkonium Chloride (5 mL of approx. 4% aqueous solution),
https://www.bioask.com/shop/rw2-1050993-benzalkonium-chloride-5-ml-of-approx-4-aqueous-solution-302894
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This Benzalkonium is guaranteed a Chloride with the use of (5 0,04 and directly supplied to your lab by Gentaur's warehouse.
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