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Table 1 Identified and tentative 2-(2-phenylethyl)chromones compounds from the salt-treated Aquilaria calli

From: Salinity stress induces the production of 2-(2-phenylethyl)chromones and regulates novel classes of responsive genes involved in signal transduction in Aquilaria sinensis calli

Peak number

tR (min)

Molecular formula

m/z experimental

m/z calculated

Error (ppm)

IT/MS/MS fragment

1*

29.03

C18H19O7Cl

383.0913

383.0892

5.48

365, 137

2

32.12

C18H19O6Cl

367.0920

367.0941

−5.72

137

3

32.54

C18H19O7Cl

383.0913

383.0892

5.48

365, 137

4

35.01

C18H19O6Cl

367.0955

367.0943

3.27

137

5

35.87

C17H17O5Cl

337.0821

337.0837

−4.75

319, 195

6

36.59

C17H17O6Cl

353.0820

353.0786

9.63

335

7

39.29

C17H17O5Cl

337.0844

337.0837

2.08

319, 195

8

41.32

C18H16O6

329.1017

329.1020

−0.91

137, 122

9

41.48

C18H20O5

317.1376

317.1384

−2.52

121, 299

10

42.09

C18H18O6

331.1164

331.1176

−3.62

313

11*

42.99

C17H17O5Cl

337.0821

337.0837

−4.75

319, 195

12

45.09

C17H14O5

299.0904

299.0914

−3.34

193, 148

13

46.62

C19H18O6

343.1173

343.1176

−0.87

207, 192

14

48.47

C18H16O5

313.1072

313.1071

0.32

206, 191

15

48.99

C17H17O5Cl

337.0844

337.0837

2.08

319, 195

16*

49.37

C19H18O6

343.1176

343.1176

0

137

17*

50.16

C18H16O5

313.1072

313.1071

0.32

137

18

51.35

C17H17O4Cl

321.0889

321.0888

0.31

303, 212

19

51.77

C17H14O4

283.0965

283.0965

0

192

20

52.89

C18H16O5

313.1071

313.1071

0

137

21*

57.51

C18H16O5

313.1071

313.1071

0

121, 192

22

58.06

C19H18O4

327.1227

327.1227

0

220

23*

58.48

C17H14O4

283.0965

283.0965

0

192

24

58.98

C20H20O6

357.1339

357.1333

1.68

137, 220

25

63.28

C18H16O4

297.1123

297.1121

0.67

121

26*

64.80

C17H14O3

267.1011

267.1016

−1.87

107

27

66.05

C18H15O5Cl

347.0681

347.0681

0

137

28*

67.35

C19H18O5

327.1229

327.1227

0.61

137

29

67.78

C18H16O4

297.1126

297.1121

1.68

206, 191

30

69.14

C18H16O4

297.1123

297.1121

0.67

107, 191

31

71.68

C19H18O5

327.1127

327.1127

0

137

32*

73.00

C17H14O3

267.1016

267.1016

0

176

33

75.58

C19H18O6

343.1176

343.1176

0

137, 167

34

77.18

C19H16O5

325.1063

325.1071

−2.46

151

35*

82.33

C20H20O5

341.1381

341.1384

−0.88

121, 220

36*

83.90

C19H18O4

311.1277

311.1278

−0.32

181, 220

37

85.35

C19H18O6

343.1176

343.1176

0

121

38

86.96

C18H16O5

313.1071

313.1071

0

222

39*

91.24

C17H13O3Cl

301.0625

301.0626

−0.33

210, 170

40

92.32

C17H14O2

251.1067

251.1067

0

 

41*

93.55

C19H18O4

311.1277

311.1278

−0.32

121, 190

  1. *: 2-(2-phenylethyl) chromone derivatives identified with standards
  2. (1)8-Chloro-5,6,7-trihydroxy-2-(3-hydroxy-4-methoxyphenethyl)-5,6,7,8-tetrahydro-4H-chromen-4-one; (11) 8-Chloro-2-(2-phenylethyl)-5,6,7-trihydroxy-5,6,7,8-tetrahydrochromone; (16) 7-Hydroxy-6-methoxy-2-[2-(3′-hydroxy-4′-methoxyphenyl)ethyl]chromone; (17) 6-Hydroxy-2-[2-(4′-hydroxy-3′-methoxyphenyl)ethenyl]chromone.; (21) Oxidoagarochromone B; (23) Oxidoagarochromone A; (26) 2-(2-4′- hydroxyphenylethyl)chromone; (28) 6-Methoxy-2-[2-(3-methoxy-4-hydroxyphenyl)ethyl]chromone; (32) AH3: 6-Hydroxy-2-(2-phenylethyl)chromone; (35) AH8: 6,7-Dimethoxy-2-[2-(4-methoxyphenyl)ethyl]chromone; (36) AH6: 6,7-Dimethoxy-2(2-phenylethyl)chromone; (39) 6-Hydroxy-8- chloro −2-(2-phenylethyl) chromone; (41) 6-Methoxy-2-[2-(3′-methoxyphenyl)ethyl]chromone