1 Back to legal disclaimer 7 When purchased at the time of mailing with Certified MailÂ®, COD, Insurance (for more than $200) or Registered Mail. 2  Restrictions apply. 3  Back to legal disclaimer 8 When purchased at the time of mailing with COD or Insurance (for more than $200). 4  Back to legal disclaimer 9.
murine. 1  adj of or relating to or transmitted by a member of the family Muridae (rats and mice) 2  n a rodent that is a member of the family Muridae.
A purine is a heterocyclic aromatic organic compound. It consists of a pyrimidine ring fused to an imidazole ring. Purines, which include substituted purines and their tautomers, are the most widely occurring nitrogen-containing heterocycle in nature.his is called complementary base pairing. In RNA, the complement of adenine is uracil instead of thymine. Other notable purines are hypoxanthine (4), xanthine (5), theobromine (6), caffeine (7), uric acid (8) and isoguanine (9).