The turnaround time for IDT custom oligos varies by scale, modifications, and purification. Most PCR primers are ordered at the 25 nmole synthesis scale and only include DNA bases. These “simple” DNA oligos can be completed in as little as 1 business day, provided they pass IDT quality control checks, and are shipped overnight. If you urgently need primers, our SameDay® Oligonucleotides
are synthesized and shipped the same day we receive your order (before 3PM ET in the United States, 1 PM CET in Europe—check our website for the cut-off time in your location), for guaranteed delivery by 10:30 am the next business day.