Welcome in the world of DNA and RNA synthesis


Our oligo house in Brazil:

Exxtend LTD.

Rua Lauro Vanucci 1.020 - Jd. Santa Cândida
Campinas / SP - CEP 13087-548

Tel. (19)3307-3044, (19)3307-3052





K&A wish all our partners, friends and customers a

Merry Christmas and a Happy New Year and we

want to thank you for the business last years.


We sponsor Sythia in Burundi since couple of years.

She and her rural community needs our help.