Heliosupine sulfate reference substance is a primary reference standard with certified absolute purity (considering chromatographic purity, water, residual solvents, inorganic impurities).
Please note that the given CAS # refers to the free base as there is no CAS # for the sulfate salt available. The counterion is determined quantitatively and treated as an impurity in the calculation of the absolute purity of this reference substance. The assigned absolute purity on the certificate of analysis of this reference standard, therefore, refers to the pure heliosupine.
Please note that the given CAS # refers to the free base as there is no CAS # for the sulfate salt available. The counterion is determined quantitatively and treated as an impurity in the calculation of the absolute purity of this reference substance. The assigned absolute purity on the certificate of analysis of this reference standard, therefore, refers to the pure heliosupine.
Soluble in methanol and water
ca. mid-March 2022
deep frozen
Danger
in styrofoam box together with deep frozen gel packs
