Table 1 Metabolites tentatively identified from the n-butanol fraction of T. nilotica flowers using LC–LTQ–MS–MS analysis in positive mode

1

Methyl gallate

C₈H₈O₅

184.0371

0.64

184.9999

125.9427-141.9137

[52]

2

Morphinan-4,6-diol, N-formyl-6-acetate(ester)

C₁₉H₂₃NO₄

329.16271

2.31

330.1706

260.1651

[53]

3

1,6-Di-O-galloyl-d-glucose (nilocitin)

C₂₀H₂₀O₁₄

484.0853

2.42

485.0025

171.0516-315.0885- 333.0927

[30, 54]

4

Hispidulin

C₁₆H₁₂O₆

300.06339

7.08

300.9978

287.0618, 271.0781

[55]

5

Methyl gallate methyl ether

C₉H₁₀O₅

198.05282

7.53

199.0607

183.2035, 182.1017, 168.1108, 167.1539

[30]

6

Luteolin

C₁₅H₁₀O₆

286.0477

8.65

286.9991

259.0632, 153.0582, 137.087

[34]

7

Nilotinin M1

C₄₁H₃₀O₂₇

954.0974

9.67

955.0017

483.0583-321.0531

[56]

8

5-Hydroxy-3,7, 4’ -trimethoxyflavone

C₁₈H₁₆O₆

328.09469

10.68

329.1040

314.9954., 301.1168, 286.0685

[57]

9

Methylquercetin hexoside (tamarixetin-3-O-hexoside)

C₂₂H₂₂O₁₂

478.1111

11.13

478.9998

316.9950- 302.0865

[30]

10

Kaempferol-3-O-glucuronide

C₂₁H₁₈O₁₂

462.0798

11.52

463.001

287.0548-259.0584

[58]

11

Quercetin

C₁₅H₁₀O₇

302.0426

12.64

302.9995

181.0502- 274.9857- 153.0431

[54]

12

Coniferyl alcohol 4-O-sulphate

C₁₀H₁₂O₆S

260.0354

13.09

260.9994

231.0484- 181.0399

[59]

13

Gemin D

C₂₇H₂₂O₁₈

634.0806

14.04

634.9988

483.1707-321.1121-303.0972

[60]

14

Pilloin

C₁₇H₁₄O₆

314.07904

14.44

315.0879

301.1345, 287.1154

[53]

15

Remurin A

C₄₈H₃₄O₃₁

1106.10842

15.82

1107.1155

650.3398- 498.4456-346.522

[61]

16

Gallic acid

C₇H₆O₅

170.0215

17.13

171.0005

126.936

[30]

17

Ferulic acid

C₁₀H₁₀O₄

194.05791

17.29

195.06574

179.1750, 150.1777, 135.0983

[30]

18

Caffeic acid

C₉H₈O₄

180.04226

21.54

181.0008

163.0144

[34]

19

4’-Methyl kaempferol (Kaempferide)

C₁₆H₁₂O₆

300.0633

22.75

301.0015

286.0854-273.0591

[30, 62]

20

Hirtellin A

C₈₂H₅₈O₅₂

1874.1894

23.32

1874.9932

1722.399-1416.418-1263.593

[56]

21

Tamarixinin A

C₇₅H₅₂O₄₈

1720.1628

25.19

1720.9955

1569.374-1416.329-483.5862-320.9474

[63]

22

Nilotinin M5

C₅₅H₃₈O₃₆

1274.1142

25.59

1274.9998

1123.457-971.7501-819.6556-483.5314

[64]

23

Syringaresinol

C₂₂H₂₆O₈

418.1627

26.49

418.9981

329.5263-373.5963-389.6274

[65]

24

Nilotinin D9

C₆₈H₅₀O₄₄

1570.1675

26.61

1570.9984

1419.444-1266.923

[66]

25

Hirtellin B

C₈₂H₅₆O₅₂

1872.1737

27.98

1872.9917

1721.137-1416.851

[67]

26

Nilotinin D1

C₇₅H₅₄O₄₈

1722.1784

28.27

1723.0042

1570.922-1418.1300-1265.0900

[29]

27

Nilotinin M4

C₄₈H₃₂O₃₁

1104.0927

28.49

1105.0016

953.718-801.6526-483.6066

[68]

28

1,2,6-Tri-O-galloyl-β-D-glucose

C₂₇H₂₄O₁₈

636.0962

29.78

636.9999

465.9667-423.9695-483.8437

[69]

29

Kaempferol dimethyl ether sulphate

C₁₇H₁₄O₉S

394.0358

30.28

395.0009

315.0898- 300.1266- 285.0565

[30, 54]

30

Methylquercetin-sulphate (tamarixetin sulphate)

C₁₆H₁₂O₁₀S

396.0151

31.57

397.0016

317.0424- 302.349- 219.0595

[30, 32]

31

Nilotinin M2

C₄₂H₃₂O₂₇

968.1131

31.85

968.9999

954.2317-483.8324-321.0566

[70]

32

Kaempferol

C₁₅H₁₀O₆

286.0477

32.46

286.9988

241.148-145.0603

[32]

33

4’-O-Methylquercetin (Tamarixetin)

C₁₆H₁₂O₇

316.0583

32.85

316.9999

302.0346-195.0663

[30, 62]

34

Kaempferol-3-O-glucoside (Astragalin)

C₂₁H₂₀O₁₁

448.1005

33.3

449.0009

449.0009-328.0134-287.0151

[71]

35

Kaempferol methyl ether sulphate

C₁₆H₁₂O₉S

380.0202

33.75

380.9984

301.0015- 286.0854

[30, 59]

36

5,7,4’-trihydroxy-3’-methoxylflavone

C₁₆H₁₂O₆

300.0633

33.75

301.0015

286.0854-153.0438-135.0147

[72]

37

Quercetin-3-O-β -D-glucupyranuronide

C₂₁H₁₈O₁₃

478.0747

33.86

479.0021

303.1093-178.0701

[72, 73]

38

N-trans-Feruloyltyramine

C₁₈H₁₉NO₄

313.1314

34.09

314.0005

299.1171-180.0647-358.056 (M + HCOO)⁺

[74]

39

Ferulic acid sulfate derivative

C₁₀H₁₀O₇S

274.0147

34.37

274.999

230.0479-195.0351-200.0469

[75]