AOACSPDSMethods-2017Awardsv2

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V aclavik et al .: J ournal of AOAC I nternational V ol . 99, N o . 1, 2016  61

Table 2. ( continued )

Analyte

Chemical Abstracts Service No.

Formula

Note

Structure

Imidazosagatriazinone

139756-21-1

C 17

H 20

N 4

O 2

—

Isosildenafil

253178-46-0

C 22

H 30

N 6

O 4

S

—

N -Desethyl vardenafil

448184-46-1

C 21

H 28

N 6

O 4

S

—

N -Desmethyl sildenafil

139755-82-1

C 21

H 28

N 6

O 4

S

—

Nitrodenafil

147676-99-1

C 17

H 19

N 5

O 4

—

N -Octyl nortadalafil

1173706-35-8

C 29

H 33

N 3

O 4

—

Noracetildenafil

949091-38-7

C 24

H 32

N 6

O 3

—

Norneosildenafil

371959-09-0

C 22

H 29

N 5

O 4

S

—