Table II. TMAH-pyrolysis-GC-MS products list.

LG, Lignin guaiacyl type; LH, lignin p-hydroxyphenyl type; LS, lignin syringyl type; PS, 1,4-linked polysaccharides.

Peak	Product Name	Formula	Mr	Origin
1	4-vinylanisole	C9H10O	134	LH
2	1,2-dimethoxybenzene	C8H10O2	138	LG
3	4-methoxyanisole	C8H10O2	138	PS
4	3,4-dimethoxytoluene	C9H12O2	152	LG
5	1-(4-methoxyphenyl)prop-2-ene	C10H12O	148	LH
6	1,2,3-trimethoxybenzene	C9H12O3	168	LS
7	3,4-dimethoxystyrene	C10H12O2	164	LG
8	1,2,4-trimethoxybenzene	C9H12O3	168	PS
9	Methyl 4-methoxybenzoate	C9H10O3	166	pBz
10	Syringol	C8H10O3	154	LS
11	3,4,5-trimethoxytoluene	C10H14O3	182	LS
12	3-(3,4-dimethoxyphenyl)prop-1-ene	C11H14O2	178	LG
13	3,4,5-trimethoxystyrene	C11H14O3	194	LS
14	3,4-dimethoxybenzaldehyde	C9H10O3	166	LG
15	Methyl cis-4-methoxycinnamate	C11H12O3	192	pCA
16	Methyl 3,4-dimethoxybenzoate	C10H12O3	196	LG
17	3-(3,4,5-trimethoxyphenyl)prop-1-ene	C12H16O3	208	LS
18	cis-1-(3,4-dimethoxyphenyl)-2-methoxyethene	C11H14O3	194	LG
19	3,4,5-trimethoxybenzaldehyde	C10H12O4	196	LS
20	trans-1-(3,4-dimethoxyphenyl)-2-methoxyethene	C11H14O3	194	LG
21	Methyl trans-4-methoxycinnamate	C11H12O3	192	pCA
22	3,4,5-trimethoxyacetophenone	C11H14O4	210	LS
23	Methyl 3,4,5-trimethoxybenzoate	C11H14O5	226	LS
24	4-allylguaiacol	C11H14O3	194	LG