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Table 2 Characteristics of compounds identified in SF through HPLC-Q-TOF-MS

From: Soufeng sanjie formula alleviates collagen-induced arthritis in mice by inhibiting Th17 cell differentiation

NO

Rt (min)

Identification

Formula

m/z

Error (ppm)

1

0.66

L (+)-Arginine

C6H14N4O2

[M+H]+

175.1189

āˆ’ 0.6

2

0.72

L-Proline

C5H9NO2

[M+H]+

116.0706

āˆ’ 0.5

3

3.22

2-(7,8-dimethyl-2,4-dioxobenzo[g]pteridin-10-yl) acetaldehyde

C14H12N4O3

[M+NA]+

307.0801

4.7

4

4.08

Epicatechin

C15H14O6

[M+H]+

291.0863

2

5

6.71

L-Leucine

C6H13NO2

[M+COOH]+

176.0917

2

6

8.11

Calycosin

C16H12O5

[M+H]+

285.0757

0.8

7

8.57

Fmoc-L-1,2,3,4-tetrahydro-norharman-3-carboxylic acid

C27H22N2O4

[M+H]+

439.1652

āˆ’ 5

8

11.57

Palmitic acid

C16H32O2

[M+NH2]+

272.2584

3.1

9

11.83

Oleic acid

C18H34O2

[M+NH2]+

298.2740

0.4

10

12.84

Ethyl 3,4-dihydroxybenzoate

C9H10O4

[M+H]+

183.0651

1.9

11

13.73

Astragaloside I

C45H72O16

[M+COOH]

913.4791

3.2

12

14.39

Delphinidin chloride

C15H11CLO7

[M+COOH]+

383.0164

0.8

13

15.39

Ī±-Linolenic acid

C18H32O2

[M+H]+

279.2318

1.7