TABLE 3.

Gas chromatography–mass spectrometry identification result of component IV.

Number	Retention time (min)	Area%	Ingredient name	Molecular formula	Molecular weight	Retention index	CAS number
1	26.698	7.78	Carbamic acid (4-aminophenyl)-, methyl ester	C8H10N2O2	166	1571	6465-03-8
2	28.604	7.6	Benzeneacetic acid, 4-(acetyloxy)-, methyl ester	C11H12O4	208	1540	35400-15-8
3	27.122	7.36	Benzeneacetic acid, 3- hydroxy-, methyl ester	C9H10O3	166	1380	42058-59-3
4	25.3	7.14	Benzeneacetic acid, 4- hydroxy-, methyl ester	C9H10O3	166	1380	42058-59-3
5	31.69	5.54	Benzeneacetic acid, 4-hydroxy-	C8H8O3	152	1470	156-38-7
6	25.895	5.46	Methyl 4-hydroxyphenylacetate, TMS derivative	C12H18O3Si	238	1458	27798-62-5
7	25.615	5.05	Carbamic acid (4-aminophenyl)-, methyl ester	C8H10N2O2	166	1571	6465-03-8
8	29.427	4.48	Benzeneacetic acid, 4-hydroxy-	C8H8O3	152	1470	156-38-7
9	26.308	3.59	Phenol, 4-(1-piperidin-1-ylcyclohexylmethyl)-	C18H27NO	273	2360	0-00-0
10	29.078	3.32	Benzeneacetic acid, 4-hydroxy-	C8H8O3	152	1470	156-38-7
11	26.117	3.1	Benzeneacetic acid, 3- hydroxy-, methyl ester	C9H10O3	166	1380	42058-59-3
12	26.825	2.57	Benzeneacetic acid, 3-(acetyloxy)-, methyl ester	C11H12O4	208	1540	35400-14-7
13	27.55	2.19	sec-Butyl 3,5-dinitrobenzoate	C11H12N2O6	268	2085	0-00-0
14	29.356	1.94	4-(2-Methoxyethyl)phenol	C9H12O2	152	1289	56718-71-9
15	27.739	1.88	Benzeneacetic acid, 4-hydroxy-	C8H8O3	152	1470	156-38-7
16	31.463	1.46	Benzeneacetic acid, 3-hydroxy-	C8H8O3	152	1470	621-37-4
17	32.959	1.27	(3S,5R,8aR)-3-butyl-5-methyloctahydroindolizine	C13H25N	185	1454	94535-27-0
18	31.223	1.08	Benzeneacetic acid, 3-hydroxy-	C8H8O3	152	1470	621-37-4
19	31.6	0.92	Benzeneacetic acid, 4-hydroxy-	C8H8O3	152	1470	156-38-7
20	29.871	0.81	Benzeneacetic acid, 3-hydroxy-	C8H8O3	152	1470	621-37-4
21	30.082	0.81	Benzeneacetic acid, 4-hydroxy-	C8H8O3	152	1470	156-38-7
22	30.553	0.81	Methyl mandelate	C9H10O3	166	1322	4358-87-6
23	30.66	0.81	Benzeneacetic acid, 4-hydroxy-	C8H8O3	152	1470	156-38-7
24	29.963	0.72	Benzeneacetic acid, 4-hydroxy-	C8H8O3	152	1470	156-38-7
25	30.158	0.72	4-(2-Methoxyethyl)phenol	C9H12O2	152	1289	56718-71-9
26	31.118	0.72	Benzeneacetic acid, 4-hydroxy-	C8H8O3	152	1470	156-38-7
27	30.825	0.71	Benzeneacetic acid, 4-hydroxy-	C8H8O3	152	1470	156-38-7
28	28.689	0.67	Benzeneacetic acid, 4- hydroxy-, methyl ester	C9H10O3	166	1380	42058-59-3
29	30.196	0.63	Benzeneacetic acid, 4-hydroxy-	C8H8O3	152	1470	156-38-7
30	30.963	0.63	Benzeneacetic acid, 4-hydroxy-	C8H8O3	152	1470	156-38-7
31	31.023	0.63	Benzeneacetic acid, 4-hydroxy-	C8H8O3	152	1470	156-38-7
32	30.885	0.62	Benzeneacetic acid, 4-hydroxy-	C8H8O3	152	1470	156-38-7
33	28.755	0.57	Benzeneacetic acid, 4-hydroxy-	C8H8O3	152	1470	156-38-7
34	31.517	0.55	Benzeneacetic acid, 4-hydroxy-	C8H8O3	152	1470	156-38-7
35	30.35	0.54	Benzeneacetic acid, 3-hydroxy-	C8H8O3	152	1470	156-38-7
36	30.735	0.53	Benzeneacetic acid, 4-hydroxy-	C8H8O3	152	1470	156-38-7