Table 2 | Identified compounds in..

Peak No.	t_R (min)	UV λ_max (nm)	*[M+H]⁺ (m/z)*	Fragment ions (+)	*[M-H]^ˉ (m/z)*	Fragment ions (-)	Compound
1	12.90	262	787	595,512,425,352,297, 266,234,151,174	785	481,469,452,344,329, 281,236,227,204,147	Tectorigenin 4`-gentiobioside-7-glucoside
2	14.50	210,263,327	625	509,385,301,232,109,85	623	461,445,298,227	Tectoridin 4`-glucoside
3^m	32.42	263,329(sh)	463	301,299,183,103,85,	461	446,283,256,227,162,147,	Tectoridin
4^m	36.60	262,339(sh)	463	344,301,286,258	461	446,397,365,283,255,233,195,167	Tectorigenin 4`- glucoside
5	40.66	257	853^b	678,652,610,490,471,453	829	707,656,64	Iridalglycoside 5^b
6	41.45	260	855^b	652,597,547,521,490,473,	ND^a	ND^a	Iridalglycoside 7
7	45.50	262	415^b	385,375,361,319,241,206 ,188,143,71	391	373,309,234,173,171,168	Irisquin B
8	51.58	262	301	280,217,168,151,142,56	299	269,120	Irilin A
9	55.01	242	303	238,182,148,141,53	301	154,152,140,138,124,117,114,111,87	Hesperetin
10	55.88	245	313	280,234,155,129	ND^a	ND^a	Irisolone
11	61.87	245	315	299,283,271,197,194,145	313	298,255,254,195,185,183,165,137,91	Irisolodone
12^m	66.01	224,297,348(sh)	ND^a	ND^a	313	298,224,213,192,166,138,123 ,110,96,82,65	Crocetenone

t_R: Retention time.
^m: Marker compounds.
sh: shoulder peak.
^aThe ion signals of this component investigated were not detected in this ion mode.
^bThis fragment ion was [M+Na]⁺

Table 2: Identified compounds in Iris crocea by HPLC-DAD-ESI-MS/MS.

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