原料参比物质(非卖品)

头孢美唑钠

Cefmetazole sodium

C15H16N7NaO5
     S3
     Fw:493.52
     CAS:56796-39-5

6-1

7-甲巯基头孢美唑

S-Methyl Cefmetazole

C15H17N7O4S4
     Fw:487.60

6-2

头孢美唑内酯

Cefmetazole Related Compound inner ester

C13H13N3O5S2
     Fw:355.39

6-3

头孢美唑内脂Ⅱ

Cefmetazole Related Compound inner ester Ⅱ

C13H14N6O5S2
     Fw:398.42

6-4

3-OH头孢美唑杂质4

Cefmetazole Related Compound 4

C13H15N3O6S2
     Fw:373.40

6-5

头孢美唑内脂
Ⅲ

Cefmetazole Related Compound inner ester Ⅲ

C9H10N2O4S
     Fw:242.25

6-6

头孢美唑杂质6

Cefmetazole Related Compound 6

C15H17N7O5S3
     Fw:471.54

6-7

头孢美唑杂质
7

Cefmetazole Related Compound 7

C24H22N6O3S3
     Fw:538.66

6-8

头孢美唑杂质
8

Cefmetazole Related Compound 8

C15H17N3O7S2
     Fw:415.44
     CAS:56796-16-8

6-9

头孢美唑杂质9

Cefmetazole Related Compound 9

C15H18N6O7S2
     Fw:458.47

6-10

头孢美唑杂质

Cefmetazole impurity

C13H15N3O5S2
     Fw:357.41

6-11

头孢美唑杂质

Cefmetazole impurity

C24H24N6O3S3
     Fw:540.68

6-12

副产物Ⅱ

Side compound Ⅱ

C15H18N10O5S3
     Fw:514.56
     CAS:74228-11-8

6-13

头孢美唑杂质

7-Amino-3-(1-methyl-5-tetrazolylthio)methyl-3-cephem-4-carboxylic    Acid

C10H12N6O3S2
     Fw:328.37

6-14

头孢美唑杂质
7位
侧链

2-(Cyanomethylthio)acetic Acid

C4H5NO2S
     Fw:131.15
     CAS:55817-29-3

6-15

头孢美唑杂质
7-MAC

7β-Amino-7α-methoxy-3-(1-methyl-5-tetrazolylthio)methyl-3-cephem-4-carboxylic    Acid Diphenylmethyl Ester

C24H24N6O4S2
     Fw:524.61
     CAS:56610-72-1

6-16

头孢美唑杂质

Cefmetazole    impurity

C2H4N4S
     Fw:116.1
     CAS:13183-79-4

6-17

头孢美唑杂质

Cefmetazole    impurity

C13H15ClN6O5S2
     Fw:434.88

6-18

头孢美唑杂质

Cefmetazole    impurity

C11H14N6O4S2
     Fw:358.05

6-19

头孢美唑杂质

Cefmetazole    impurity

C24H24N6O4S2
     Fw:524.62