Peak (ppm)

LS

Intensity

%

Peak (ppm)

LA

Intensity

%

Peak

(ppm)

Assignments

177.22

2

176.60

2

178.0 - 167.5

Unconjugated-CO₂ H

152.75

10

153.37

10

154 - 152

C3/C5 S etherified

148.23

15

148.03

15

148 - 147

C4 G etherified, C3C5 S non etherified

133.63

5

134.04

5

134

C1 S or C1 in G β-O-4

128.08

3

128

C2/C6 H

115.54

3

114.92

5

115

C5 G

102.59

38

102.38

38

105 - 104

C2/C6 S

82.23

10

82.65

5

89 - 78

Cβ in β-O-4, Cα in β5 and ββCα and Cβ in β-O-4/α-O-4 units

75.04

95

75.04

100

Aliphatic-CH₂OH

73.60

80

73 - 71

Cα in β-O-4

63.94

30

63.73

30

64

Cγ in β5, Cγ with Cα = O, Cγ-O PC ester

55.92

18

55.71

25

56

OCH₃ in G and S

31.25

2

30.42

2

31 - 29

α, β méthylène groups