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Papaverine

Reference work entry

CAS Registry Number: 58-74-2 Open image in new window

Taxonomy: Physicochemical and Pharmacological Properties of Alkaloids – Benzylisoquinoline Alkaloids

Biological sources: Berberis turcomanica, Papaver commutatum, P. somniferum

C20H21NO4: 339.1471

Mp: 145–147°C, 196°C (dec., oxalate), 186°C (dec., picrate), 226°C (hydrochloride) [1]

UV: 239, 280 [2]

IR: 1649, 1600, 1534, 1485, 1317, 1288, 1259, 1203, 1188, 1168, 1142, 1128, 1102, 1039, 1013, 978, 938, 925, 890, 869, 862, 853 [3]

MSm/z: 339(M+), 338, 324(100), 308 [4]

13 C NMR: [ 5]

Table 1

C-1

157.4

C-7

149.7

C-4′

147.0

3

140.6

8

103.8

5′

110.5

4

118.3

8a

122.5

6′

120.1

4a

133.0

9

42.0

OCH3

55.5

5

104.9

1′

131.9

OCH3

55.5

6

152.0

2′

111.5

OCH3

55.5

   

3′

148.6

OCH3

55.5

References

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