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Pharmaceutical Impurity Reference Standards

Process impurities, degradation products and genotoxic impurity reference standards with full characterization.

59,706 products available — showing first 8,000

Clopidogrel Impurity 84 structure

Clopidogrel Impurity 84

CAS: 782477-51-4

In Stock97%+

Clopidogrel Impurity 85 structure

Clopidogrel Impurity 85

CAS: 1219432-42-4

In Stock97%+

Clopidogrel Impurity 87 structure

Clopidogrel Impurity 87

CAS: 26118-14-9

In Stock97%+

Clopidogrel Impurity 88 structure

Clopidogrel Impurity 88

CAS: 34966-49-9

In Stock97%+

Clopidogrel Impurity 89 structure

Clopidogrel Impurity 89

CAS: CATO-C4X-102989

In Stock97%+

Clopidogrel Impurity 9 structure

Clopidogrel Impurity 9

CAS: 532987-11-4

In Stock97%+

Clopidogrel Impurity 90 structure

Clopidogrel Impurity 90

CAS: 1251736-86-3

In Stock>90%

Clopidogrel Impurity 91 structure

Clopidogrel Impurity 91

CAS: 317322-48-8

In Stock97%+

Clopidogrel Impurity 92 structure

Clopidogrel Impurity 92

CAS: CATO-C4X-102992

In Stock97%+

Clopidogrel EP impurity D Sulfate structure

Clopidogrel EP impurity D Sulfate

CAS: 1421283-60-4 (free base)

In Stock97%+

Clopidogrel Impurity 98 structure

Clopidogrel Impurity 98

CAS: 76103-96-3

In Stock97%+

Clopidogrel Impurity 985 structure

Clopidogrel Impurity 985

CAS: CATO-C4X-1029985

In Stock97%+

Clopidogrel Impurity 987 structure

Clopidogrel Impurity 987

CAS: CATO-C4X-1029987

In Stock97%+

Clopidogrel Impurity 99 structure

Clopidogrel Impurity 99

CAS: CATO-C4X-102999

In Stock>95%

Meptazinol Impurity 1 structure

Meptazinol Impurity 1

CAS: 774499-89-7

In Stock97%+

Meptazinol Impurity 2 structure

Meptazinol Impurity 2

CAS: CATO-C4X-10302

In Stock97%+

Meptazinol Impurity 3 structure

Meptazinol Impurity 3

CAS: CATO-C4X-10303

In Stock97%+

Meptazinol Impurity 4 structure

Meptazinol Impurity 4

CAS: CATO-C4X-10304

In Stock97%+

Montelukast EP Impurity A(Sodium Salt) structure

Montelukast EP Impurity A(Sodium Salt)

CAS: 190078-45-6

In Stock>90%

Montelukast Impurity 10 structure

Montelukast Impurity 10

CAS: 150026-75-8

In Stock97%+

Montelukast Impurity 12 structure

Montelukast Impurity 12

CAS: 807638-71-7

In Stock97%+

Montelukast EP Impurity B structure

Montelukast EP Impurity B

CAS: 918972-54-0

In Stock>95%

Montelukast EP Impurity D structure

Montelukast EP Impurity D

CAS: 1187586-61-3

In Stock>95%

Montelukast EP Impurity E structure

Montelukast EP Impurity E

CAS: 1187586-58-8

In Stock>90%

Montelukast EP Impurity H structure

Montelukast EP Impurity H

CAS: 851755-56-1

In Stock>95%

Montelukast EP Impurity I structure

Montelukast EP Impurity I

CAS: 2045402-27-3

In Stock>95%

Montelukast Impurity 19 structure

Montelukast Impurity 19

CAS: 1258428-71-5

In Stock>95%

Montelukast Impurity 2 structure

Montelukast Impurity 2

CAS: CATO-C4X-10312

In Stock97%+

Montelukast Impurity 21 structure

Montelukast Impurity 21

CAS: 142147-67-9

In Stock97%+

Montelukast Impurity 22 structure

Montelukast Impurity 22

CAS: 1266620-74-9

In Stock97%+

Montelukast Impurity 23 structure

Montelukast Impurity 23

CAS: CATO-C4X-103123

In Stock97%+

Montelukast Impurity 24 structure

Montelukast Impurity 24

CAS: CATO-C4X-103124

In Stock97%+

Montelukast EP Impurity A structure

Montelukast EP Impurity A

CAS: 220927-27-5

In Stock>95%

Montelukast Impurity 26 structure

Montelukast Impurity 26

CAS: 120578-03-2

In Stock>95%

Montelukast Impurity 27 structure

Montelukast Impurity 27

CAS: 168214-67-3

In Stock>95%

Montelukast Impurity 29 structure

Montelukast Impurity 29

CAS: 184764-13-4

In Stock>95%

Montelukast EP Impurity C(Mixture of Diastereomers) structure

Montelukast EP Impurity C(Mixture of Diastereomers)

CAS: 909849-96-3

In Stock>90%

Montelukast Impurity 30 structure

Montelukast Impurity 30

CAS: 855473-51-7

In Stock97%+

Montelukast Impurity 31 structure

Montelukast Impurity 31

CAS: 287930-77-2

In Stock97%+

Montelukast Impurity 32 structure

Montelukast Impurity 32

CAS: 1187586-63-5

In Stock>95%

Montelukast EP Impurity H structure

Montelukast EP Impurity H

CAS: 906107-37-7

In Stock97%+

Montelukast Impurity 34 structure

Montelukast Impurity 34

CAS: 162515-68-6

In Stock>95%

Montelukast Impurity 35 structure

Montelukast Impurity 35

CAS: 1351973-25-5

In Stock>95%

Montelukast Impurity 36 structure

Montelukast Impurity 36

CAS: 142569-69-5

In Stock>95%

Montelukast Impurity 37 structure

Montelukast Impurity 37

CAS: CATO-C4X-103137

In Stock>95%

Montelukast Impurity 39 structure

Montelukast Impurity 39

CAS: 769-28-8

In Stock97%+

Montelukast EP Impurity D Isomer structure

Montelukast EP Impurity D Isomer

CAS: CATO-C4X-10314

In Stock97%+

Montelukast Impurity 40 structure

Montelukast Impurity 40

CAS: CATO-C4X-103140

In Stock>95%

Montelukast Impurity 42 structure

Montelukast Impurity 42

CAS: 149968-10-5

In Stock>95%

Montelukast Impurity 43 structure

Montelukast Impurity 43

CAS: 2365398-67-8

In Stock97%+

Montelukast Impurity 44 structure

Montelukast Impurity 44

CAS: 2365398-66-7

In Stock97%+

Montelukast Sodium EP Impurity G structure

Montelukast Sodium EP Impurity G

CAS: 1428448-96-7

In Stock>95%

Montelukast Impurity 46 structure

Montelukast Impurity 46

CAS: CATO-C4X-103146

In Stock97%+

Montelukast Impurity 47 structure

Montelukast Impurity 47

CAS: 1079753-36-8

In Stock97%+

Montelukast Impurity 48 structure

Montelukast Impurity 48

CAS: 87764-54-3

In Stock97%+

Montelukast Impurity 49 structure

Montelukast Impurity 49

CAS: CATO-C4X-103149

In Stock＞95%

Montelukast Impurity 50 structure

Montelukast Impurity 50

CAS: 1044705-96-5

In Stock97%+

Montelukast Impurity 52 Dicyclohexylamine structure

Montelukast Impurity 52 Dicyclohexylamine

CAS: CATO-C4X-103152

In Stock97%+

Montelukast Impurity 53 structure

Montelukast Impurity 53

CAS: 152922-71-9

In Stock97%+

Montelukast Impurity 54 structure

Montelukast Impurity 54

CAS: 89729-09-9

In Stock97%+

Montelukast Impurity 55 structure

Montelukast Impurity 55

CAS: 152922-86-6

In Stock97%+

Montelukast Impurity 56 structure

Montelukast Impurity 56

CAS: 1100617-38-6

In Stock97%+

Montelukast Impurity 57 structure

Montelukast Impurity 57

CAS: 30220-25-8

In Stock≥95%

Montelukast Impurity 58 structure

Montelukast Impurity 58

CAS: CATO-C4X-103158

In Stock97%+

Montelukast Impurity 59 structure

Montelukast Impurity 59

CAS: CATO-C4X-103159

In Stock97%+

Montelukast EP Impurity F structure

Montelukast EP Impurity F

CAS: 937275-23-5

In Stock>95%

Montelukast EP Impurity G structure

Montelukast EP Impurity G

CAS: 774538-96-4

In Stock>90.0%

Montelukast Impurity 8 structure

Montelukast Impurity 8

CAS: CATO-C4X-10318

In Stock97%+

Montelukast Impurity 9 structure

Montelukast Impurity 9

CAS: CATO-C4X-10319

In Stock97%+

Mirabegron Impurity 1 structure

Mirabegron Impurity 1

CAS: 223673-36-7

In Stock>95%

Mirabegron Impurity 10 structure

Mirabegron Impurity 10

CAS: 1684452-81-0

In Stock97%+

Mirabegron impurity 100 structure

Mirabegron impurity 100

CAS: CATO-C4X-1032100

In Stock97%+

Mirabegron impurity 101 structure

Mirabegron impurity 101

CAS: CATO-C4X-1032101

In Stock97%+

Mirabegron impurity 102 structure

Mirabegron impurity 102

CAS: CATO-C4X-1032102

In Stock97%+

Mirabegron Impurity 103 structure

Mirabegron Impurity 103

CAS: CATO-C4X-1032103

In Stock97%+

Mirabegron Impurity 105 structure

Mirabegron Impurity 105

CAS: CATO-C4X-1032105

In Stock97%+

Mirabegron Impurity 106 HCl structure

Mirabegron Impurity 106 HCl

CAS: CATO-C4X-1032106

In Stock97%+

Mirabegron Impurity 107 HCl structure

Mirabegron Impurity 107 HCl

CAS: CATO-C4X-1032107

In Stock97%+

Mirabegron Impurity 108 structure

Mirabegron Impurity 108

CAS: CATO-C4X-1032108

In Stock97%+

Mirabegron Impurity 109 structure

Mirabegron Impurity 109

CAS: CATO-C4X-1032109

In Stock97%+

Mirabegron Impurity 11 structure

Mirabegron Impurity 11

CAS: 1684452-80-9

In Stock>95%

Mirabegron Impurity 110 structure

Mirabegron Impurity 110

CAS: CATO-C4X-1032110

In Stock97%+

Mirabegron Impurity 111 structure

Mirabegron Impurity 111

CAS: CATO-C4X-1032111

In Stock97%+

Mirabegron Impurity 112 structure

Mirabegron Impurity 112

CAS: CATO-C4X-1032112

In Stock97%+

Mirabegron Impurity 113 structure

Mirabegron Impurity 113

CAS: 168897-09-4 (free base)

In Stock97%+

Mirabegron Impurity 114 structure

Mirabegron Impurity 114

CAS: CATO-C4X-1032114

In Stock97%+

Mirabegron Impurity 115 structure

Mirabegron Impurity 115

CAS: CATO-C4X-1032115

In Stock97%+

Mirabegron Impurity 116 structure

Mirabegron Impurity 116

CAS: CATO-C4X-1032116

In Stock97%+

Mirabegron Impurity 117 structure

Mirabegron Impurity 117

CAS: CATO-C4X-1032117

In Stock97%+

Mirabegron Impurity 118 structure

Mirabegron Impurity 118

CAS: CATO-C4X-1032118

In Stock97%+

Mirabegron impurity 119 structure

Mirabegron impurity 119

CAS: CATO-C4X-1032119

In Stock97%+

Mirabegron Impurity 12 structure

Mirabegron Impurity 12

CAS: CATO-C4X-103212

In Stock97%+

Mirabegron Impurity 120 structure

Mirabegron Impurity 120

CAS: CATO-C4X-1032120

In Stock97%+

Mirabegron Impurity 121 structure

Mirabegron Impurity 121

CAS: CATO-C4X-1032121

In Stock97%+

Mirabegron impurity 122 structure

Mirabegron impurity 122

CAS: 391901-43-2

In Stock97%+

Mirabegron Impurity 123 structure

Mirabegron Impurity 123

CAS: CATO-C4X-1032123

In Stock97%+

Mirabegron Impurity 124 structure

Mirabegron Impurity 124

CAS: CATO-C4X-1032124

In Stock97%+

Mirabegron Impurity 125 structure

Mirabegron Impurity 125

CAS: CATO-C4X-1032125

In Stock97%+

Mirabegron Impurity 126 structure

Mirabegron Impurity 126

CAS: CATO-C4X-1032126

In Stock97%+

Mirabegron Impurity 127 structure

Mirabegron Impurity 127

CAS: CATO-C4X-1032127

In Stock97%+

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