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Mass Spectra of Certain Molecules and Drugs

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(1)

Mass Spectra of Certain Molecules

and Drugs

(2)
(3)
(4)
(5)
(6)

M-18

1-butene

cation

Oxonium

cation

(7)

Benzaldehyde

C

H

O

e

C

H

O

m/e = 77

m/e = 106

H

m/e = 105

+

C

O

+

H

H

H

H

H

H

H

H

+ H

C

C

H

m/e = 51

(8)

4-Hydroxyacetophenone

OH

C

CH

3

O

e

OH

C

CH

3

O

m/e = 43

m/e = 93

m/e = 136

CH

3

m/e= 121

+

+

+

OH

C

O

+

CH

3

C

O

OH

H

H

H

H

O

H

H

H

H

H

H

H

H

H

H

m/e = 65

CO

(9)
(10)

Isoniazide

m/e = 137

+

+

N

C

NH

O

NH

2

NH

NH

2

N

C

O

m/e = 106

CO

N

+

m/e = 78

H

H

H

m/e = 51

HC

N

+

(mainlib) Isoniazid 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 0 50 100 18 31 37 41 51 57 61 65 76 78 93 106 120 137 NH O NH2 N

(11)

Salicylamide

+

m/e = 92

m/e = 120

m/e = 64

+

m/e = 137

C

O

NH

2

O

H

+

C

O

O

NH

3

CO

O

CO

+

(mainlib) Salicylamide 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 0 50 100 14 18 28 32 39 44 53 65 76 80 92 102 108 120 137 OH NH2 O

(12)

Sulfamethoxazole

+

m/e = 253

m/e = 174

H

2

N

SO

2

NH

N

O

CH

3

H

2

N

NH

N

O

CH

3

SO

2

+

m/e = 189

CH

3

+

H

2

N

NH

N

O

m/e = 156

H

2

N

SO

+

2

SO

2

N

+

m/e = 92

HCN

H

+

m/e = 65

(13)

(mainlib) Sulfamethoxazole

10

30

50

70

90

110

130

150

170

190

210

230

250

270

0

50

100

18 26

39

52

65

69

80

92

97

108

119

132

140

146

156

162

174

189

198

253

O

N

NH

O

S

O

H2N

(14)

Acetaminophen

+ +

m/e = 151

m/e = 109

+

m/e = 81

CO

HO

NH

C

O

CH

3

CH

2

C

O

HO

NH

2 +

NH

2

H

H

H

H

H

+

H

m/e = 80

NH

2

H

H

H

H

H

HO

NH

m/e = 108

(mainlib) Acetaminophen 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 0 50 100 14 18 27 31 39 43 53 57 63 67 71 75 80 89 93 109 120 135 151 HO NH O

(15)

Phenacetin

+

m/e = 179

+

m/e = 109

O

NH

C

O

CH

3

CH

3

CH

2

CH

2

C

O

O

NH

2

CH

3

CH

2 + +

m/e = 137

HO

NH

2

CH

2

CH

2

m/e = 108

O

NH

2

CH

3

CH

2 (mainlib) Phenacetin 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 190 0 50 100 27 39 43 53 65 80 83 91 108 122 137 151 179 O NH O

(16)

Carbamazepine

+

m/e = 236

+

m/e = 192

H

N

C

O

NH

2

C

O

HN

+

m/e = 193

N

H

N

(mainlib) Carbamazepine

10

20

30

40

50

60

70

80

90 100 110 120 130 140 150 160 170 180 190 200 210 220 230 240 250

0

50

100

18 27

43 50

63 69 75 83 89

95

102 111

125

139 150

165

178

193

218

236

N

NH2

O

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