4,7-Dimethyl-2H,5H-pyrano[4,3-b]pyran-2,5-dione,英文名:4,7-Dimethyl-2H,5H-pyrano[4,3-b]pyran-2,5-dione,

2026-03-27 10:24:45

1204-38-2

4,7-Dimethyl-2H,5H-pyrano[4,3-b]pyran-2,5-dione(4,7-Dimethyl-2H,5H-pyrano[4,3-b]pyran-2,5-dione)

CAS: 1204-38-2

化学式:

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