The AQ in the name stands for aqueous, meaning stanozolol suspended in water rather than dissolved in oil, and the 100 marks this out as the double-strength option in the group: 100 mg in every millilitre where the rest of the shelf sits at 50.
Magnum Pharmaceuticals supplies it as ten sealed ampoules. A water suspension at this concentration is dense, so the powder packs down firmly at the bottom of the glass and has to be roused before it will draw. Stanozolol itself is a non-aromatising DHT derivative with no ester attached, so it does not linger the way esterified oils do.