Formulated as a mixture of equimolar quantities of desmosine ( EPC No. D866) and isodesmosine (EPC No. D975). Purity is determined by amino acid analysis and thin layer chromatography.
The purity is 99.5% � 0.2%.
Anhydrous MW is 526.
The desmosine-isodesmosine mixture is extremely hygroscopic and must be stored over a desiccant such as silica gel.
The following package quantities are prepared with � 0.1 mg under desiccated conditions.