"Solubility: Soluble in water (>25 mg/ml), and DMSO (50 mM)."

It happens to be talking about a drug but that's irrelevant to my question. Does this solubility statement reasonably indicate that I can dissolve 10mg/ml in water and expect it to stay in solution? if possible, what does the dmso bit mean? (maybe mM is a typo of mL?)

  • 1
    $\begingroup$ Yes at least 25 mg should dissolve per ml of water. Dimethyl sulfoxide (DMSO) is a common organic solvent. $\endgroup$
    – MaxW
    Mar 15, 2016 at 21:17
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    $\begingroup$ @MaxW You should post that as an answer. $\endgroup$
    – bon
    Mar 15, 2016 at 22:06
  • $\begingroup$ wow, great answers everybody, thanks! I'm asking this as a guest, so I don't seem to see an "Accept Answer" button, which I would click if I could. all my q's have been answered in prefect detail. thank you, people! $\endgroup$
    – Tracy P
    Mar 16, 2016 at 3:34

1 Answer 1



The compound is soluble in water to at least 25 mg/ml - which is (obviously) the same as g/l. Presumably they didn't test at higher concentration.

Alternatively, it is soluble to 50 mM, i.e. mmol/l, in pure DMSO.

Why they would use different units is beyond me, but I would guess this has to do with the units conventionally used in the two experiments they've run.

  • $\begingroup$ and mM means milli-molar $\endgroup$
    – Yunfei Ma
    Mar 15, 2016 at 22:31

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