Rosmarinic Acid 1)CAS:20283-92-5 2)Yellow-brown Powder 3)Grade :Premium ... use in phytotherapy. Name: Rosemary Extract--- Carnosic Acid CAS No: 20283-92-5 Specification: 5%,10%,20%,98% Formula C18H16O8 ... please feedback in time;7. Return shipping out side;8.8 years experience in plant extract;9. With experiences staff., ... ODM orders;12.To learn more, inquire today. CAS:20283-92-5 Rosmarinic Acid HPLC 98%