Are unlabeled primers modified with a 3 phosphate?
Our unlabeled primers are not synthesized with phosphate modifications unless requested and specified as a custom primer upon ordering. Unlabeled primers are synthesized with terminal hydroxyls (5′ and 3′). Phosphate modifications at the 5′ and 3′ ends are available as custom requests. For pricing of custom modifications contact our customer service department at info@biosearchtech.