Purification method: 2-column chromatography

Formulation: Tris-EDTA buffer

or specified by customer

Concentration: >= 1.0 mg/ml

Concentration: OD 260 

OD 260/280 ratio

Identity (restriction enzyme digestion)

RNA (agarose gel)

open circle vs. supercoiled form (agarose gel) -- optional

Endotoxin assay -- optional