Table 1.

Compositional profile of R. officinalis hexane extract as analysed by GC-MS.

No	RT (min)	RI expa	RI litb	Metabolitec	Relative percentile
1	7.07	914	914	α-Pinene	1.73
2	7.52	929	929	Camphene	0.46
3	7.7	936	937	2,4(10)-Thujadiene	0.1
4	8.39	960	960	β-Pinene	0.13
5	9.45	998	998	δ 3-carene	0.08
6	9.93	1013	1013	p-Cymene	0.07
7	10.05	1017	1017	Limonene	0.4
8	10.11	1019	1019	Eucalyptol	1.63
9	12.34	1089	1089	Linalool	0.45
10	13.73	1133	1133	Camphor	2.07
11	14.32	1152	1152	Pinocarvone	0.12
12	14.42	1155	1155	Borneol	1.07
13	14.68	1163	1162	Isopinocamphone	0.17
14	15.22	1180	1180	α-Terpineol	0.21
15	15.59	1192	1196	Isoborneol	0.09
16	15.77	1198	1198	Verbenone	2.08
17	16.78	1233	1234	cis-Myrtanol	0.21
18	18.02	1276	1276	Bornyl acetate	0.31
19	21.8	1408	1408	Caryophyllene	0.2
20	42.19	2368	2300	Tricosane	0.21
21	43.84	2467	2400	Tetracosane	0.27
22	44.78	2528	2525	Diisooctyl phthalate	0.19
23	45.42	2569	2500	Pentacosane	0.43
24	46.93	2666	2600	Hexacosane	0.8
25	48.39	2760	2700	Heptacosane	0.65
26	49.83	2853	2800	Octacosane	3.07
27	51.18	2939	2865	2-methyloctacosane	0.9
28	52	2992	2965	2-Methylnonacosane	0.35
29	52.53	3026	3000	Triacontane	6.73
30	53.29	3075	3112	α-Tocopherol	0.34
31	53.49	3087	3015	3,7-dimethyl-nonacosane	0.54
32	53.83	3110	3100	Hentriacontane	1.34
33	54.58	3157	3120	n-Octacosanol	0.21
34	54.73	3167	3100	Hentriacontane	1.26
35	55.36	3208	3200	Dotriacontane	16.21
36	56.34	3270	3225	16-Methyldotriacontane	0.36
37	56.56	3285	3235	12-Methyldotriacontane	1.7
38	56.69	3294	3337	β-Amyrin	10.4
39	56.99	3313	3300	Tritriacontane	1.11
40	57.1	3319	3337	β-Amyrin	3.95
41	57.57	3350	3376	α-Amyrin	20.64
42	58	3377	3376	α-Amyrin	3.79
43	58.19	3389	3338	15-Methyltritriacontane	0.71
44	58.98	3440	3400	Tetratriacontane	5.11
45	59.35	3464	3384	Lupenone	0.67
46	62.4	3660	3525	Lupeol acetate	4.91
47	62.62	3674	3629	Betulinaldehyde	0.86
% Total Identified					99.29
% Monoterpenes					2.97
% Oxygenated monoterpenes					8.41
% Sesquiterpenes					0.2
% Hydrocarbons					41.75
% Triterpenoids					45.22
Others					0.74

^aRetention index calculated experimentally on Rtx-5MS column relative to C8-C28 n-alkanes series.

^bCorresponding Kovats retention index from literature and spectral databases.

^cIdentification based on comparing retention indices (RI) and mass spectral data (MS) with those found in NIST Mass Spectral Library (2011), Wiley Registry of Mass Spectral Data (8^th edition) and reported in literature.