Table 1.

Gas chromatography–mass spectrometry analysis of the M. chinensis Maxim cv. Jiangxiangru essential oil

Peak number	Retention time (min)	Compound name	Molecular formula	Relative molecular mass	Retention Index	Relative content (%)
1	7.375	β-Thujene	C10H16	136	1068	0.078
2	7.592	α-Pinene	C10H16	136	1031	0.111
3	9.810	β-Myrcene	C10H16	136	979	0.674
4	10.286	α-Phellandrene	C10H16	136	997	0.064
5	10.804	3-Carene	C10H16	136	1078	0.937
6	11.163	p-Cimene	C10H16	136	1025.4	5.601
7	11.310	Sylvestrene	C10H16	136	1016	0.217
8	11.421	Eucalyptol	C10H18O	154	1023	0.254
9	12.216	cis-β-Ocimene	C10H16	136	1024	0.147
10	12.645	γ-Terpinene	C10H16	136	1047	3.545
11	13.021	trans-4-Thujanol	C10H18O	154	1051	0.151
12	13.921	Terpinolene	C10H16	136	1078	0.062
13	14.533	cis-Sabinene hydrate	C10H18O	154	1059	0.061
14	16.668	Sabinol	C10H16O	152	1107	0.060
15	17.962	Terpinen-4-ol	C10H18O	154	1161	0.610
16	25.179	Thymol	C10H14O	150	1266	58.476
17	25.803	Carvacrol	C10H14O	150	1278	22.239
18	30.179	Thymyl acetate	C12H16O2	192	1338	2.235
19	31.997	Carvacryl acetate	C12H16O2	192	1354	0.611
20	36.008	β-Caryophyllene	C15H24	204	1424	0.418
21	38.220	α-Bergamotene	15H24	204	1407	0.691
22	39.555	α-Caryophyllene	15H24	204	1456	1.848
23	40.996	(Z)-β-Farnesene	15H24	204	1449	0.114
24	43.302	cis-β-Farnesene	15H24	204	1449	0.066
25	45.278	(Z,E)-α-Farnesene	15H24	204	1486	0.321
26	46.237	γ-Muurolene	15H24	204	1480	0.085
27	47.754	β-Sesquiphellandrene	15H24	204	1516	0.160
28	56.795	Humulene-1,2-epoxide	C15H24O	220	1601	0.137
29	60.510	Eudesma-3,7(11)-diene	15H24	204	1440	0.015