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CEFAZOLIN

C-967

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Catalogue Number:	C-967
Compound Name:	Cefazolin EP Impurity B
Synonyms:	(6R,7R)-3-(((5-methyl-1,3,4-thiadiazol-2-yl)thio)methyl)-8-oxo-7-pivalamido-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid
CAS#:	2384108-14-7
Alternate CAS#:	1798390-48-3 (racemic)
Molecular Formula:	C₁₆H₂₀N₄O₄S₃
Molecular Weight:	428.54

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CAS No. 29490-19-5

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M.W. 132.21

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CAS No. 21732-17-2

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Cefazolin EP Impurity A

CAS No. 30246-33-4

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M.W. 344.44

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CAS No. 27164-45-0

C₁₃H₁₃N₆O₆S. Na

M.W. 381.35 22.99

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Cefazolin EP Impurity C

CAS No. 56842-77-4

C₁₁H₁₂N₆O₄S

M.W. 324.32

C-9640

Cefazolin Sodium Salt

Cefazolin Enantiomer

C₈H₁₀N₂O_{4/_S}

M.W. 230.24

C-9614

Cefazolin Sodium Salt

Cefazolin 3-Hydroxymethyl Impurity Sodium Salt

CAS No. 50971-65-8

C₁₁H₁₁N₆O₅S. Na

M.W. 339.31 22.99

C-9615

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Cefazolin delta-4 Impurity

CAS No. N/A

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M.W. 472.53

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Cefazolin Impurity 37

CAS No. 1675245-47-2 (hydrate), 1797135-60-4 (aldehyde)

C₅H₇N₅O₂. C₅H₉N₅O₃

M.W. 169.14 187.16

C-9617

Cefazolin Sodium Salt

Cefazolin Impurity 1

C13H17N3O7S

M.W. 359.36

C-9618

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Cefazolin Impurity 2

C13H17N3O6S

M.W. 343.36

C-9619

Cefazolin Sodium Salt

Cefazolin EP Impurity H (Cefalotin EP Impurity C, Cefoperazone EP Impurity E, 7-Aminocephalosporanic Acid)

CAS No. 957-68-6

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M.W. 272.28

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CAS No. N/A

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Cefazolin EP Impurity L

C₁₄H₁₄N₈O₄S₃

M.W. 454.51

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Tetrazolyl Acetamide Diethyl Acetal

C9H17N5O3

M.W. 243.27

C-9623

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Cefazolin Related Compound D (Cefazolin open-ring lactone)

C₁₁H₁₂N₆O₅S

M.W. 340.31

C-9624

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Cefazolin Impurity 4 (Dimeric 7-ACA)

C₁₈H₂₀N₄O₈S

M.W. 484.50

C-9625

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Cefazolin EP Impurity J

CAS No. 1675245-00-7

C₁₁H₁₂N₆O₅S

M.W. 340.31

C-9626

Cefazolin Sodium Salt

Cefazolin Impurity 6

CAS No. 66636-33-7

C14H20N4O3S3Si

M.W. 416.60

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Cefazolin Sodium Salt

Cefazolin Impurity 7 (Cefazolin Trimethylsilyl Ester)

CAS No. 1072000-00-0

C17H22N8O4S3Si

M.W. 526.68

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Cefazolin Sodium EP Impurity I

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M.W. 472.53

C-9629

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Cefazolin Impurity 8

C14H14N8O4S3

M.W. 454.50

C-9630

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Cefazolin Impurity 9

C14H14N8O4S3

M.W. 454.50

C-9631

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Cefazolin Impurity 11

CAS No. 1809086-26-7

C₇H₁₃N₅O₃

M.W. 215.21

C-9632

Cefazolin Sodium Salt

Cefazolin Impurity 12

C8H12N4O4

M.W. 228.21

C-9633

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Cefazolin Impurity 13

C28H30N16O9S6

M.W. 927.01

C-9634

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Cefazolin Impurity 14

C28H30N16O9S6

M.W. 927.01

C-9635

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Cefazolin Impurity 15

C28H28N16O8S6

M.W. 909.00

C-9636

Cefazolin Sodium Salt

Cefazolin Impurity 16

C25H24N12O6S6

M.W. 780.91

C-9637

Cefazolin Sodium Salt

Cefazolin Impurity 17

CAS No. 38509-92-1

C3H5N2OS2. K

M.W. 149.21 39.10

C-9638

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Cefazolin Impurity 18

C5H9NO3

M.W. 131.13

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Cefazolin Impurity 19

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M.W. 470.50

C-9641

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Cefazolin Impurity 20 Trifluoroacetate Salt

C₂₀H₂₂N₄O₉S₂. C₂HF₃O₂

M.W. 526.54 114.02

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Cefazolin Impurity 21

C₁₁H₁₃N₅O₂S₃

M.W. 343.44

C-9643

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Cefazolin Impurity 22

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M.W. 381.37

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Cefazolin Impurity 23

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M.W. 216.32

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Cefazolin Impurity 24 DiHCl

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M.W. 362.44 2*36.46

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Cefazolin Impurity 25

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M.W. 344.42

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Cefazolin Impurity 28

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M.W. 85.55 2*22.99

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Cefazolin Impurity 29

C₁₀H₁₃N₃O₄S

M.W. 271.29

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Cefazolin Impurity 30

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M.W. 155.16

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C₃H₅N₂OS₂. NH₄

M.W. 149.21 18.04

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Cefazolin Sodium Salt

Cefazolin Impurity 33

CAS No. 56158-48

C₄H₉NOS₂

M.W. 151.24

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Cefazolin Sodium Salt

Cefazolin EP Impurity K (Cefazolinamide)

CAS No. 2410652-70-7

C₁₄H₁₅N₉O₃S₃

M.W. 453.51

C-9655

Cefazolin Sodium Salt

Cefazolin Impurity 34

C₁₄H₁₇N₉O₄S₃

M.W. 471.53

C-9656

Cefazolin Sodium Salt

Cefazolin Impurity 35

CAS No. 1675244-99-1

C₁₄H₁₆N₈O₅S₃

M.W. 472.51

C-9657

Cefazolin Sodium Salt

Cefazolin Impurity 36 Sodium Salt

CAS No. 27164-45-0

C₁₃H₁₃N₆O₆S. Na

M.W. 381.34 22.99

C-9658

Cefazolin Sodium Salt

Cefazolin Impurity 38

C₁₄H₁₅N₉O₃S₃

M.W. 453.51

C-9659

Cefazolin Sodium Salt

Cefazolin Impurity 39

C25H26N14O9S4

M.W. 794.81

C-9660

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Cefazolin Impurity 40

C₂₅H₂₆N₁₄O₉S₄

M.W. 794.81

C-9661

Cefazolin Sodium Salt

Cefazolin Impurity 41

C₁₄H₁₄N₈O₄S₃

M.W. 454.50

C-9662

Cefazolin Sodium Salt

Cefazolin Impurity 42

C₂₅H₂₆N₁₄O₉S₄

M.W. 794.81

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Cefazolin Sodium Salt

Cefazolin Impurity 43

CAS No. 66666-63-5

C₆H₆N₄S₄

M.W. 262.38

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Cefazolin Impurity 44

CAS No. 20198-75-8

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M.W. 164.24

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Cefoxazole

CAS No. 36920-48-6

C₂₁H₁₈ClN₃O₇S

M.W. 491.90

C-9666

Cefazolin Sodium Salt

Cefazolin Impurity 45

C₁₃H₁₄N₆O₆S

M.W. 382.35

C-9667

Cefazolin Sodium Salt

Cefazolin Impurity 46 HCl

CAS No. 53116-43-1

C₁₄H₁₃N₃O₆S. HCl

M.W. 351.33 36.46

C-9668

Cefazolin Sodium Salt

Cefazolin EP Impurity D

CAS No. 32510-61-5

C₁₃H₁₄N₆O₆S

M.W. 382.35

C-9669

Cefazolin Sodium Salt

Cefazolin Impurity 47

C₁₈H₂₂N₈O₆S₄

M.W. 574.66

C-9670

Cefazolin Sodium Salt

Cefazolin Impurity 48

C₂₉H₃₄N₁₄O₁₁S₅

M.W. 914.98

C-9671

Cefazolin Sodium Salt

Cefazolin Impurity 49

C₁₉H₂₀N₈O₇S₄

M.W. 600.66

C-9672

Cefazolin Sodium Salt

Cefazolin Impurity 50

C₁₉H₂₀N₈O₇S₄

M.W. 600.66