α构型 ，实单，急需，能做的请联系

Name:(2S,3S,4S,5S)-3-(butyryloxy)-5-methyltetrahydrofuran-2,4-diyl dipropionate

CAS:76497-54-6
Chemical Formula: C15H24O7
Molecular Weight: 316.3500
m/z: 316.1522 (100.0%), 317.1556 (16.2%), 318.1564 (1.4%), 318.1589 (1.2%)
Elemental Analysis: C, 56.95; H, 7.65; O, 35.40