Table 2.

Chemical components of BHD

No.	Identification	Peak % area
1.	δ-Elemene	0.19
2.	α-Copaene	0.16
3.	Caryophyllene	0.19
4.	β-selinene	0.29
5.	Caryophyllene oxide	0.74
6.	Curzerenone	3.21
7.	Unknown ingredient	1.72
8.	3-Butylphthalide; 3-butyl-1(3H)-isobenzofuranone	5.22
9.	Isopsoralen	2.43
10.	Psoralen	2.32
11.	Unknown ingredient	1.25
12.	Unknown ingredient	2.57
13.	Unknown ingredient	1.59
14.	Unknown ingredient	2.63
15.	Bakuchiol	34.92
16.	Osthole	18.54
17.	Unknown ingredient	3.28
18.	Decursin	1.87
19.	Unknown ingredient	0.99
20.	Unknown ingredient	2.73
21.	Unknown ingredient	0.95