This octapeptide is a COOH-terminal fragment of the C3a anaphylatoxin peptide. On a molar basis, this peptide possesses 1-2% of the biological activities of C3a. It causes contraction of rodent ileum and uterus, release of vasoactive amines from rat mast

H – Ala – Ser – His – Leu – Gly – Leu – Ala – Arg – OH

≥ 95%

-20°C

ASHLGLAR

Ref: Tony E. Hugli and Bruce W. Erickson. PNAS 74, 1826 (1977); Payan, D. et al. J. exp Med 156, 756 (1982)