Home / Products / Pharmaceutical Impurity Reference Standards

Product Category

Pharmaceutical Impurity Reference Standards

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

59,706 products available — showing first 8,000

Azithromycin EP Impurity C structure

Azithromycin EP Impurity C

CAS: 620169-47-3

In Stock>90%

Azithromycin impurity 60 structure

Azithromycin impurity 60

CAS: CATO-C4X-100360

In Stock97%+

Azithromycin impurity 61 structure

Azithromycin impurity 61

CAS: CATO-C4X-100361

In Stock97%+

Azithromycin impurity 62 structure

Azithromycin impurity 62

CAS: 857078-26-3

In Stock97%+

（See C4X-100319）Azithromycin EP Impurity A (See C4X-100319) structure

（See C4X-100319）Azithromycin EP Impurity A (See C4X-100319)

CAS: CATO-C4X-10037

In Stock97%+

Azithromycin EP Impurity H structure

Azithromycin EP Impurity H

CAS: 612069-30-4

In Stock>90%

Azithromycin EP Impurity I structure

Azithromycin EP Impurity I

CAS: 172617-84-4

In Stock>95%

Besifloxacin Impurity 1 structure

Besifloxacin Impurity 1

CAS: CATO-C4X-10041

In Stock97%+

Besifloxacin Impurity 2 structure

Besifloxacin Impurity 2

CAS: CATO-C4X-10042

In Stock97%+

Besifloxacin Impurity 3 structure

Besifloxacin Impurity 3

CAS: CATO-C4X-10043

In Stock97%+

Besifloxacin Impurity 4 structure

Besifloxacin Impurity 4

CAS: CATO-C4X-10044

In Stock97%+

Besifloxacin Impurity 5 structure

Besifloxacin Impurity 5

CAS: 124932-43-0

In Stock97%+

Tipiracil Impurity 1 structure

Tipiracil Impurity 1

CAS: CATO-C4X-10051

In Stock97%+

Tipiracil Impurity 10 HCl structure

Tipiracil Impurity 10 HCl

CAS: 2428584-36-3(free base)

In Stock>95%

Tipiracil Impurity 6 Chloride structure

Tipiracil Impurity 6 Chloride

CAS: CATO-C4X-100511

In Stock>95%

Tipiracil Impurity 12 structure

Tipiracil Impurity 12

CAS: 99478-59-8

In Stock97%+

Tipiracil Impurity 13 structure

Tipiracil Impurity 13

CAS: CATO-C4X-100513

In Stock97%+

Tipiracil Impurity 14 structure

Tipiracil Impurity 14

CAS: CATO-C4X-100514

In Stock97%+

Tipiracil Impurity 2 structure

Tipiracil Impurity 2

CAS: CATO-C4X-10052

In Stock97%+

Tipiracil Impurity 3 structure

Tipiracil Impurity 3

CAS: CATO-C4X-10053

In Stock97%+

Tipiracil Impurity 4 structure

Tipiracil Impurity 4

CAS: CATO-C4X-10054

In Stock97%+

Tipiracil Impurity 5 structure

Tipiracil Impurity 5

CAS: CATO-C4X-10055

In Stock97%+

Tipiracil Impurity 6 structure

Tipiracil Impurity 6

CAS: 7544-75-4

In Stock97%+

Tipiracil Impurity 7 structure

Tipiracil Impurity 7

CAS: 6674-22-2

In Stock>90%

Tipiracil Impurity 8 structure

Tipiracil Impurity 8

CAS: 18592-13-7

In Stock97%+

Tipiracil Impurity 9 structure

Tipiracil Impurity 9

CAS: 73742-45-7

In Stock97%+

Afatinib Impurity 1 structure

Afatinib Impurity 1

CAS: 314771-88-5

In Stock>95%

Afatinib Impurity 10 structure

Afatinib Impurity 10

CAS: CATO-C4X-100610

In Stock97%+

Afatinib Impurity 11 structure

Afatinib Impurity 11

CAS: CATO-C4X-100611

In Stock97%+

Afatinib impurity 12 structure

Afatinib impurity 12

CAS: 1680184-59-1

In Stock>95%

Afatinib Impurity 13 structure

Afatinib Impurity 13

CAS: CATO-C4X-100613

In Stock97%+

Afatinib Impurity 14 structure

Afatinib Impurity 14

CAS: 2121530-37-6

In Stock97%+

Afatinib Impurity 16 structure

Afatinib Impurity 16

CAS: CATO-C4X-100616

In Stock97%+

Afatinib Impurity 17 structure

Afatinib Impurity 17

CAS: CATO-C4X-100617

In Stock97%+

Afatinib Impurity 18 structure

Afatinib Impurity 18

CAS: CATO-C4X-100618

In Stock>95%

Afatinib Impurity 19 structure

Afatinib Impurity 19

CAS: 2223677-58-3

In Stock>95%

Afatinib Impurity 2 structure

Afatinib Impurity 2

CAS: 314771-76-1

In Stock>95%

Afatinib Impurity 20 structure

Afatinib Impurity 20

CAS: 179552-73-9

In Stock>95%

Afatinib Impurity 21 structure

Afatinib Impurity 21

CAS: 402855-03-2

In Stock>95%

Afatinib Impurity 22 structure

Afatinib Impurity 22

CAS: 162012-67-1

In Stock>95%

Afatinib Impurity 23 structure

Afatinib Impurity 23

CAS: CATO-C4X-100623

In Stock97%+

Afatinib Impurity 24 structure

Afatinib Impurity 24

CAS: CATO-C4X-100624

In Stock97%+

Afatinib Impurity 25 structure

Afatinib Impurity 25

CAS: CATO-C4X-100625

In Stock97%+

Afatinib Impurity 26 structure

Afatinib Impurity 26

CAS: CATO-C4X-100626

In Stock97%+

Afatinib Impurity 27 structure

Afatinib Impurity 27

CAS: CATO-C4X-100627

In Stock97%+

Afatinib Impurity 29 structure

Afatinib Impurity 29

CAS: 1456696-14-2

In Stock90%

Afatinib Impurity 3 structure

Afatinib Impurity 3

CAS: 945553-91-3

In Stock>95%

Afatinib Impurity 30 structure

Afatinib Impurity 30

CAS: CATO-C4X-100630

In Stock97%+

Afatinib Impurity 31 structure

Afatinib Impurity 31

CAS: CATO-C4X-100631

In Stock97%+

Afatinib Impurity 32 structure

Afatinib Impurity 32

CAS: 2170273-17-1

In Stock97%+

Afatinib Impurity 33 structure

Afatinib Impurity 33

CAS: CATO-C4X-100633

In Stock>95%

Afatinib Impurity 34 structure

Afatinib Impurity 34

CAS: CATO-C4X-100634

In Stock>95%

Afatinib Impurity 35 structure

Afatinib Impurity 35

CAS: 848133-35-7

In Stock>95%

Afatinib Impurity 36 structure

Afatinib Impurity 36

CAS: CATO-C4X-100636

In Stock>95%

Afatinib Impurity 37 structure

Afatinib Impurity 37

CAS: 372-19-0

In Stock>95%

Afatinib Impurity 38 structure

Afatinib Impurity 38

CAS: 2106-04-9

In Stock>95%

Afatinib Impurity 39 structure

Afatinib Impurity 39

CAS: 1117-71-1

In Stock>80%

Afatinib Impurity 4 structure

Afatinib Impurity 4

CAS: CATO-C4X-10064

In Stock97%+

Afatinib Impurity 41 structure

Afatinib Impurity 41

CAS: 179552-74-0

In Stock>95%

Afatinib impurity 42 structure

Afatinib impurity 42

CAS: CATO-C4X-100642

In Stock97%+

Afatinib Impurity 46 structure

Afatinib Impurity 46

CAS: 1449430-53-8

In Stock97%+

Afatinib Impurity 47 structure

Afatinib Impurity 47

CAS: CATO-C4X-100647

In Stock97%+

Afatinib Impurity 48 structure

Afatinib Impurity 48

CAS: 3005278-77-0

In Stock97%+

Afatinib Impurity 5 structure

Afatinib Impurity 5

CAS: 2223677-62-9

In Stock97%+

Afatinib Impurity 50 structure

Afatinib Impurity 50

CAS: 2413212-25-4

In Stock97%+

Afatinib Impurity 51 structure

Afatinib Impurity 51

CAS: CATO-C4X-100651

In Stock>95%

Afatinib Impurity 52 structure

Afatinib Impurity 52

CAS: CATO-C4X-100652

In Stock>95%

Afatinib Impurity 53 structure

Afatinib Impurity 53

CAS: 1449430-45-8

In Stock>95%

Afatinib Impurity 54 structure

Afatinib Impurity 54

CAS: 2831861-00-6

In Stock97%+

Afatinib Impurity 55 structure

Afatinib Impurity 55

CAS: CATO-C4X-100655

In Stock97%+

Afatinib Impurity 56 structure

Afatinib Impurity 56

CAS: CATO-C4X-100656

In Stock97%+

Afatinib Impurity 57 structure

Afatinib Impurity 57

CAS: CATO-C4X-100657

In Stock97%+

Afatinib Impurity 58 structure

Afatinib Impurity 58

CAS: CATO-C4X-100658

In Stock97%+

Afatinib Impurity 59 structure

Afatinib Impurity 59

CAS: CATO-C4X-100659

In Stock97%+

Afatinib Impurity 60 structure

Afatinib Impurity 60

CAS: CATO-C4X-100660

In Stock97%+

Afatinib Impurity 61 structure

Afatinib Impurity 61

CAS: CATO-C4X-100661

In Stock97%+

Afatinib Impurity 62 structure

Afatinib Impurity 62

CAS: CATO-C4X-100662

In Stock97%+

Afatinib Impurity 63 structure

Afatinib Impurity 63

CAS: CATO-C4X-100663

In Stock97%+

Afatinib Impurity 64 structure

Afatinib Impurity 64

CAS: CATO-C4X-100664

In Stock>95%

Afatinib Impurity 65 structure

Afatinib Impurity 65

CAS: CATO-C4X-100665

In Stock>95%

Afatinib Impurity 66 structure

Afatinib Impurity 66

CAS: CATO-C4X-100666

In Stock>95%

Afatinib Impurity 67 structure

Afatinib Impurity 67

CAS: CATO-C4X-100667

In Stock>95%

Afatinib Impurity 68 structure

Afatinib Impurity 68

CAS: CATO-C4X-100668

In Stock>95%

Afatinib Impurity 69 structure

Afatinib Impurity 69

CAS: CATO-C4X-100669

In Stock97%+

Afatinib Impurity 7 structure

Afatinib Impurity 7

CAS: 2223677-64-1

In Stock97%+

Afatinib Impurity 71 structure

Afatinib Impurity 71

CAS: CATO-C4X-100671

In Stock97%+

Afatinib Impurity 72 structure

Afatinib Impurity 72

CAS: 487060-47-9

In Stock97%+

Afatinib Impurity 73 structure

Afatinib Impurity 73

CAS: CATO-C4X-100673

In Stock97%+

Afatinib Impurity 74 structure

Afatinib Impurity 74

CAS: CATO-C4X-100674

In Stock97%+

Afatinib Impurity 75 structure

Afatinib Impurity 75

CAS: CATO-C4X-100675

In Stock97%+

Afatinib Impurity 76 structure

Afatinib Impurity 76

CAS: CATO-C4X-100676

In Stock97%+

Afatinib Impurity 77 structure

Afatinib Impurity 77

CAS: CATO-C4X-100677

In Stock97%+

Afatinib Impurity 78 structure

Afatinib Impurity 78

CAS: 945553-91-3（free base）

In Stock97%+

Afatinib Impurity 79 structure

Afatinib Impurity 79

CAS: CATO-C4X-100679

In Stock97%+

Afatinib Impurity 8 structure

Afatinib Impurity 8

CAS: CATO-C4X-10068

In Stock97%+

Afatinib Impurity 80 structure

Afatinib Impurity 80

CAS: CATO-C4X-100680

In Stock97%+

Afatinib Impurity 81 structure

Afatinib Impurity 81

CAS: CATO-C4X-100681

In Stock97%+

Afatinib Impurity 82 structure

Afatinib Impurity 82

CAS: CATO-C4X-100682

In Stock97%+

Afatinib Impurity 83 structure

Afatinib Impurity 83

CAS: CATO-C4X-100683

In Stock97%+

Afatinib Impurity 84 structure

Afatinib Impurity 84

CAS: CATO-C4X-100684

In Stock97%+

« Prev 1…60 61 62 63 64…80 Next »