Nardosinone Alleviates Parkinson’s Disease Symptoms in Mice by Regulating Dopamine D2 Receptor

Table 1

UHPLC-LTQ-Orbitrap-MS data for the five compounds of nardostachys extract in rat brain tissue (positive ions).

No.	tR/min	Molecular formula	Theoretical value	Actual value	Error	MS fragment ion information	Conjectural compound
1	25.99	C15H20O	217.15869	217.15886	0.774	95.08577, 119.08554, 133.10089, 161.09587, 175.11153	Kanshone H
2	25.92	C15H22O3	251.16517	251.16405	−0.482	107.08572, 121.10128, 135.08029, 149.09592, 175.11151, 233.15332	Nardosinone
3	29.66	C15H22O	219.17434	219.17400	−1.560	109.10152, 159.11667, 163.11156	Nootkatone
4	38.42	C12H12O3	205.08592	205.08566	−1.272	105.07053, 133.06528	11-Ethoxyviburtinal
5	31.53	C15H18O2	231.13795	231.13744	−2.234	81.07040, 93.07020, 105.07013, 119.08569, 143.08539, 157.10104, 185.13232, 195.11695, 213.12726	Dehydrocostus lactone