This conversion only apply to oligo 18-25 mers
1 ODU ssDNA = 33 ugs
1 ODU ddDNA = 50 ugs
1 ODU ssRNA = 40 ugs
1 ODU ddRNA = 29 ugs
nmole DNA = (OD260 units x 90)/(Length of DNA)
Molecular weight of DNA:
MW = [(A x 312.2) + (G x 328.2) + (C x 288.2) + (T x 303.2) - (61.1)]