||There are two standard dilutions of ketamine: 50 mg per 1 ml and 100 mg per 1 ml. The links show a couple of photos that represent each dilution.|
There are many other manufacturers of ketamine, and these two photos were only chosen because they clearly show dose information on their labels.
If the dilution is 50 mg/1 ml, a 10 ml bottle would contain 500 mg of ketamine.
If the dilution is 100 mg/1 ml, then a 10 ml bottle would contain 1,000 mg (1 gram) of ketamine.
If a bottle is missing its label, the only ways to know for sure the quantity of ketamine it contains would be by evaporating off the liquid and weighing the powder. This only works with known pure material (such as would be found in an unopened pharmaceutical bottle) and an accurate scale. Non-pharmaceutical liquid ketamine could contain other materials or contaminants that would make the evaporation/weighing method inaccurate.