Table 3.

Identified silylated derivatives of the constitutive metabolites in the Violet pigment of S. zaomycetitus GH90 isolate

P.No.	Rt, min	RC, %	MF	MW	Chemical name
1	6.17	4.70	C9H22O3Si2	234	Bis(trimethylsilyl)-lactic acid
2	7.16	3.41	C9H23NO2Si2	233	L-Alanine, N-(trimethylsilyl)-, trimethylsilyl ester
3	7.47	0.41	C8H21NO2Si2	219	Glycine, N-(trimethylsilyl)-, trimethylsilyl ester
4	10.02	0.65	C11H27NO2Si2	261	L-Valine, N-(trimethylsilyl)-, trimethylsilyl ester
5	11.37	0.25	C9H27O4PSi3	314	Silanol, trimethylsilylphosphate
6	11.47	0.73	C12H29NO2Si2	275	L-Leucine, N-(trimethylsilyl)-, trimethylsilyl ester
7	11.82	1.08	C14H29NO	308	Myristamide
8	12.02	0.30	C12H29NO2Si2	275	L-Isoleucine, N-(trimethylsilyl)-, trimethylsilyl ester
9	14.57	0.24	C13H33NO3Si3	335	L-Threonine, N, O-bis(trimethylsilyl)-, trimethylsilyl ester
10	14.74	0.25	C11H28O3Si3	292	Tris(trimethylsiloxy)ethylene
11	17.80	0.38	C14H33NO3Si3	347	(E)-L-Hydroxyproline, 1-(trimethylsilyl)−4-[(trimethylsilyl)oxy]-trimethylsilyl ester
12	18.32	0.32	C14H32O5Si3	364	Pentanedioic acid, 2-[(trimethylsilyl)oxy]-bis-(trimethylsilyl) ester
13	23.07	0.63	C14H31BO6Si2	362	α-D-Galactopyranoside, methyl 2,6-bis-O-(trimethylsilyl)-, cyclicmethylboronate
14	23.17	0.59	C18H36N2O6Si3	460	2′,3′,5′-Tris-O-(trimethylsilyl)-uridine
15	24.04	2.87	C19H46O6Si4	482	Methyl 2,3,5,6-tetrakis-O-(trimethylsilyl)-α-D-glucofuranose
16	24.86	0.57	C21H52O6Si5	540	1,2,3,4,6-Pentakis-O-(trimethylsilyl)-D-glucopyranose
17	25.34	0.57	C21H52O6Si5	540	1,2,3,4,6-Pentakis-O-(trimethylsilyl)-L-altrose
18	25.70	0.35	C18H31NO3Si3	393	Trimethylsilyl1-(trimethylsilyl)−5-[(trimethylsilyl)oxy]−1 H-indole-2-carboxylate
19	26.13	0.45	C21H52O6Si5	540	Pentakis(trimethylsilyl)α-D-allopyranose
20	26.19	0.66	C21H52O6Si5	540	1,2,3,4,6-Pentakis-O-(trimethylsilyl)-α-D-Talopyranose
21	26.42	1.28	C22H55NO6Si5	569	(1Z)-O-Methyloxime-2,3,4,5,6-Pentakis-O-(trimethylsilyl)-D-glucopyranose
22	26.73	0.23	C22H55NO6Si5	569	(1E)-O-Methyloxime-2,3,4,5,6-Pentakis-O-(trimethylsilyl)-D-allose
23	27.07	2.03	C13H32O4Si3	378	Tris-(trimethyl silyl)-levoglucosan
24	27.44	2.61	C19H40O2Si	328	Trimethylsilyl-palmitate ester
25	28.67	0.89	C19H46O6Si4	482	Tetrakis-O-(trimethylsilyl)-α-D-methylgalactose
26	30.87	1.05	C21H40O2Si	352	Trimethylsilyl-(9Z,12Z)-octadecadienoic acid ester
27	31.03	1.54	C21H42O2Si	354	Trimethylsilyl-(11E)-octadecenoic acid ester
28	31.16	0.51	C21H42O2Si	354	Trimethylsilyl-(9E)-octadecenoic acid ester
29	31.57	0.61	C21H44O2Si	356	Trimethylsilylstearic acid ester
30	34.45	0.35	C36H86O11Si8	918	Lactose, octakis(trimethylsilyl)ether, isomer 1
31	35.09	1.11	C36H86O11Si8	918	3-α-Mannobiose, octakis(trimethylsilyl)ether, isomer 1
32	37.26	0.43	C26H17N3	371	Pyridazinyl-1,2-bibenzoylbenzo[E]indolizine
33	37.73	0.68	C17H42O5Si4	438	D-Ribofuranose, tetrakis-O-(trimethylsilyl) ether
34	38.28	14.00	C36H86O11Si8	918	Maltose, octakis(trimethylsilyl)ether, isomer 1
35	38.64	14.01	C36H86O11Si8	918	2-α-Mannobiose, octakis(trimethylsilyl)ether
36	38.76	13.38	C36H86O11Si8	918	α-D-Lactose, octakis(trimethylsilyl)ether, isomer 2
37	39.77	7.35	C36H86O11Si8	918	Maltose, octakis(trimethylsilyl)ether, isomer 2
38	39.86	2.45	C36H86O11Si8	918	D-(+)-Cellobiose, octakis(trimethylsilyl)ether
39	40.03	6.14	C36H86O11Si8	918	D-(+)-Turanose, octakis(trimethylsilyl)ether
40	40.63	8.56	C36H86O11Si8	918	3-α-Mannobiose, octakis(trimethylsilyl)ether, isomer 2
41	41.14	2.29	C36H86O11Si8	918	2-α-Mannobiose, octakis(trimethylsilyl)ether, isomer 1

R_t (retention time); Rc (relative concentrations), MF (Molecular formula), MW (Molecular weight)