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Table 3 Identified metabolites in methanol extract and its different fractions

From: In vitro antioxidant and, α-glucosidase inhibitory activities and comprehensive metabolite profiling of methanol extract and its fractions from Clinacanthus nutans

MeOH

Mass

Formula (DB)

Score (Lib)

m/z

RT

Glyceric acid rq

322.145

C12H30O4

82.1

73.03153

22.04

Malic acid hex, rq

350.14

C13H30O

82.63

73.03153

31.411

Erythritol hex, bu., rq

410.216

C16H42O4

83.96

73.03153

33.044

Ribitol hex

512.266

C20H52O5

90.44

73.03153

49.243

Neophytadiene

278.297

C20H38

81.5

67.0393

53.357

Mannitol bu

614.316

C24H62O6

86.43

73.03153

56.957

Gluconic acid

628.295

C24H60O7

72.71

73.03153

58.972

Palmitic acid rq

328.28

C19H40O2

75.99

117.0168

59.131

Rhamnose ea., bu., rq

452.227

C18H44O5

71.07

73.03153

59.918

Myo-Inositol hex, ea., bu

612.301

C24H60O6

81.27

73.03153

61.069

Oleic Acid hex

354.295

C21H42O2

74.58

75.01034

63.292

Stearic acid hex, ea., bu., rq

356.311

C21H44O2

75.89

117.0168

63.921

1-Monopalmitin hex, ea., bu., rq

474.356

C25H54O4

86.25

371.2661

76.818

Hexane

Mass

Formula (DB)

Score (Lib)

m/z

RT

Glycolic acid ea., bu., rq

220.095

C8H20O3

78.81

147.0445

8.457

Glycerol hex, bu

308.166

C12H32O3

86.8

73.03193

18.785

Myristic acid

300.248

C17H36O2

77.37

117.0175

53.071

Hexadecanoic acid bu

270.256

C17H34O2

80.98

87.02704

55.509

Cyclononasiloxane ea., bu

666.169

C18H54O9

78.42

73.03193

64.886

Squalene

410.391

C30H50

76.25

81.05419

83.616

Sulfurous acid

376.301

C21H44O3

79.63

57.05663

85.537

β-Tocopherol

488.405

C31H56O2

78.3

488.3697

87.803

1-Tetracosanol

426.426

C27H58O

74.64

411.3688

87.824

γ-Tocopherol

488.405

C31H56O2

76.32

73.03193

88.004

Lupeol

426.386

C30H50O

78.1

189.1404

98.854

EoAC

Mass

Formula (DB)

Score (Lib)

m/z

RT

Lactic Acid rq

234.111

C9H22O3

70.76

73.03193

7.867

Hexanoic acid

188.123

C9H20O2

82.18

73.03193

8.127

Oxalic acid

234.074

C8H18O4

74.24

147.0437

11.408

Benzoic acid

194.076

C10H14O2

89.19

135.0956

16.142

Benzeneacetic acid

208.092

C11H16O2

82.37

73.03193

19.06

Tyrosol

282.147

C14H26O2

83.45

179.063

35.281

Arabinitol bu., rq

512.266

C20H52O5

87.01

73.03193

49.249

Vanillic acid

312.121

C14H24O4

81.66

297.1034

49.77

4-Coumaric acid

308.126

C15H24O3

81.65

293.1079

50.764

p-Coumaric alcohol

294.147

C15H26O2

75.26

73.03193

51.005

Azelaic acid

332.184

C15H32O4

85.4

73.03193

51.378

Tryptophol

305.163

C16H27NO

73.32

202.1438

54.561

Syringic acid

342.132

C15H26O5

76.23

327.0037

55.145

Heptasiloxane

532.184

C16H48O6

70.08

355.0375

87.993

D-Xylose bu

438.211

C17H42O5

74.23

191.0664

88.537

BuOH

Mass

Formula (DB)

Score (Lib)

m/z

RT

Propylene glycol

220.131

C9H24O2

72.85

73.03256

13.928

Dulcitol

614.316

C24H62O6

73.74

73.03256

56.96

Octadecanoic acid

284.272

C18H36O2

71.73

87.02775

62.021

Residual Aqueous

Mass

Formula (DB)

Score (Lib)

m/z

RT

Butanedioic acid

262.106

C10H22O4

78.34

147.0448

20.507

Xylitol

512.266

C20H52O5

75.32

73.0321

49.24

  1. Subscript with hex-hexane fraction, ea.- ethyl acetate fraction, bu.-butanol fraction, rq-residual aqueous fraction represents the identified compound in that fraction