β-Amyloid (1-40), Rat Sequence (one letter code) DAEFGHDSGFEVRHQKLVFFAEDVGSNKGAIIGLMVGGVV Sequence (three letter code) H-Asp-Ala-Glu-Phe-Gly-His-Asp-Ser-Gly-Phe-Glu-Val-Arg-His-Gln-Lys-Leu-Val-Phe-Phe-Ala-Glu-Asp-Val-Gly-Ser-Asn-Lys-Gly-Ala-Ile-Ile-Gly-Leu-Met-Val-Gly-Gly-Val-Val-OH Formula C190H291N51O57S1 Cas No. 144409-98-3 Purity >90%,>95%,>98% Molecular weight 4233.74