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Pharmaceutical Impurity Reference Standards

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

Leuprorelin Impurity N8 structure

Leuprorelin Impurity N8

CAS: 112642-11-2（free base）

In Stock97%+

Rabeprazole Impurity N1 structure

Rabeprazole Impurity N1

CAS: 1163685-30-0

In Stock97%+

Oseltamivir Impurity C62 structure

Oseltamivir Impurity C62

CAS: 1217834-81-5

In Stock97%+

Selexipag Impurity 2 D6 structure

Selexipag Impurity 2 D6

CAS: 1265295-56-4

In Stock>95%

Cinacalcet Impurity N57 structure

Cinacalcet Impurity N57

CAS: 1271930-15-4

In Stock97%+

Chlorhexidine EP Impurity A structure

Chlorhexidine EP Impurity A

CAS: 152504-08-0

In Stock97%+

Thiocolchicoside EP Impurity G structure

Thiocolchicoside EP Impurity G

CAS: 177991-81-0

In Stock97%+

N-Nitroso Cetirizine EP Impurity A structure

N-Nitroso Cetirizine EP Impurity A

CAS: 2005-04-1

In Stock97%+

Benzydamine EP Impurity B HCl structure

Benzydamine EP Impurity B HCl

CAS: 2196183-71-6

In Stock97%+

Sildenafil Impurity C31 structure

Sildenafil Impurity C31

CAS: 2196244-90-1

In Stock97%+

Sacubitril Impurity N38 structure

Sacubitril Impurity N38

CAS: 2216746-87-9

In Stock97%+

Aripiprazole Impurity N2 structure

Aripiprazole Impurity N2

CAS: 2220149-92-6

In Stock>95%

Baloxavir Impurity C65 structure

Baloxavir Impurity C65

CAS: 2374735-31-4

In Stock97%+

Dapagliflozin Impurity N9 structure

Dapagliflozin Impurity N9

CAS: 2452300-81-9

In Stock97%+

Dexamethasone Impurity 715 Disodium Salt structure

Dexamethasone Impurity 715 Disodium Salt

CAS: 39005-10-2

In Stock>95%

Vardenafil Impurity N2 structure

Vardenafil Impurity N2

CAS: 448184-54-1

In Stock97%+

Vardenafil Impurity N1 structure

Vardenafil Impurity N1

CAS: 448184-56-3

In Stock97%+

Efavirenz Related Compound A structure

Efavirenz Related Compound A

CAS: 209414-27-7

In Stock97%+

Budesonide Impurity N60 structure

Budesonide Impurity N60

CAS: 910299-74-0

In Stock>95%

Vonoprazan Impurity C295 structure

Vonoprazan Impurity C295

CAS: 928325-68-2

In Stock97%+

Lumefantrine Impurity N1 structure

Lumefantrine Impurity N1

CAS: 2170653-95-7 (free base)

In Stock97%+

Capivasertib Impurity N1 structure

Capivasertib Impurity N1

CAS: 956460-96-1

In Stock97%+

克仑特罗杂质F structure

克仑特罗杂质F

CAS: CATO-C3D-1026

In Stock97%+

Agomelatine Impurity 4 structure

Agomelatine Impurity 4

CAS: CATO-C3D-1362

In Stock97%+

Trelagliptin Impurity structure

Trelagliptin Impurity

CAS: CATO-C3D-1383

In Stock97%+

Penehyclidine Impurity 2 structure

Penehyclidine Impurity 2

CAS: CATO-C3D-1445

In Stock97%+

Penehyclidine Impurity 3 structure

Penehyclidine Impurity 3

CAS: 2091937-84-5

In Stock97%+

Palbociclib Impurity 7 structure

Palbociclib Impurity 7

CAS: CATO-C3D-1456

In Stock97%+

Palbociclib Impurity 10 structure

Palbociclib Impurity 10

CAS: CATO-C3D-1457

In Stock97%+

Palbociclib Impurity 15 structure

Palbociclib Impurity 15

CAS: CATO-C3D-1458

In Stock97%+

Trelagliptin Impurity structure

Trelagliptin Impurity

CAS: CATO-C3D-1460

In Stock97%+

Lapatinib 2-Fluoro Impurity structure

Lapatinib 2-Fluoro Impurity

CAS: 1393112-45-2

In Stock97%+

Palbociclib Impurity 20 structure

Palbociclib Impurity 20

CAS: CATO-C3D-1542

In Stock97%+

Isoniazid EP Impurity D structure

Isoniazid EP Impurity D

CAS: 553-53-7

In Stock>95%

Moxifloxacin impurity N1 structure

Moxifloxacin impurity N1

CAS: 147459-51-6

In Stock>95%

4'-((2-Butyl-4-oxo-1,3-diazaspiro[4.4]non-2-en-1-yl)methyl)-[1,1'-biphenyl]-2-carbonitrile structure

4'-((2-Butyl-4-oxo-1,3-diazaspiro[4.4]non-2-en-1-yl)methyl)-[1,1'-biphenyl]-2-carbonitrile

CAS: CATO-C3D-2418

In Stock97%+

Methylaminolevulinate EP Impurity B HCl structure

Methylaminolevulinate EP Impurity B HCl

CAS: 5451-09-2

In Stock>95%

Tolbutamide EP Impurity B structure

Tolbutamide EP Impurity B

CAS: 1694-06-0

In Stock>95%

Aristolochia lactam impurity 8 structure

Aristolochia lactam impurity 8

CAS: 112501-43-6

In Stock>95%

N-Nitroso Tryptophan EP Impurity H structure

N-Nitroso Tryptophan EP Impurity H

CAS: 24950-98-9

In Stock>95%

N1-Nitroso Tryptophan EP Impurity I structure

N1-Nitroso Tryptophan EP Impurity I

CAS: 23708-74-9

In Stock>95%

Molsidomine EP Impurity D structure

Molsidomine EP Impurity D

CAS: 4394-85-8

In Stock97%+

Ipconazole Impurity 1 structure

Ipconazole Impurity 1

CAS: 191166-47-9

In Stock97%+

Ipconazole Impurity 2 structure

Ipconazole Impurity 2

CAS: 115937-89-8

In Stock97%+

Ipconazole Impurity 3 structure

Ipconazole Impurity 3

CAS: 115850-69-6

In Stock97%+

Ipconazole Impurity 4 structure

Ipconazole Impurity 4

CAS: 191166-39-9

In Stock97%+

Florasulam impurity 50 structure

Florasulam impurity 50

CAS: CATO-C3D-26050

In Stock≥95%

Florasulam impurity 51 structure

Florasulam impurity 51

CAS: CATO-C3D-26051

In Stock≥95%

N-Nitroso-Tetracaine EP Impurity A structure

N-Nitroso-Tetracaine EP Impurity A

CAS: 91673-51-7

In Stock>95%

N-Nitroso Temazepam EP Impurity A structure

N-Nitroso Temazepam EP Impurity A

CAS: 51145-18-7

In Stock97%+

Procymidone Impurity 43 structure

Procymidone Impurity 43

CAS: 169327-83-7

In Stock97%+

Procymidone Impurity 44 structure

Procymidone Impurity 44

CAS: 2044706-66-1

In Stock97%+

Procymidone Impurity 45 structure

Procymidone Impurity 45

CAS: CATO-C3D-262345

In Stock97%+

其他杂质N1 structure

其他杂质N1

CAS: CATO-C3D-262483

In Stock97%+

Advantame Acid Impurity structure

Advantame Acid Impurity

CAS: CATO-C3D-262581

In Stock95%

(1R,2R,4R)-D-Camphor EP Impurity I structure

(1R,2R,4R)-D-Camphor EP Impurity I

CAS: 10334-13-1

In Stock97%+

Others Impurity 18 structure

Others Impurity 18

CAS: CATO-C3D-262618

In Stock97%+

Others Impurity 19 structure

Others Impurity 19

CAS: CATO-C3D-262619

In Stock97%+

Others Impurity 20 structure

Others Impurity 20

CAS: CATO-C3D-262620

In Stock97%+

Others Impurity 21 structure

Others Impurity 21

CAS: 17656-74-5

In Stock≥95%

PBT Impurity 58 structure

PBT Impurity 58

CAS: 210566-88-4

In Stock≥95%

SYH2051 Metabolite Impurity N67 structure

SYH2051 Metabolite Impurity N67

CAS: CATO-C3D-262667

In Stock97%+

苯并氮杂卓并环衍生物类中间体亚硝胺杂质2 structure

苯并氮杂卓并环衍生物类中间体亚硝胺杂质2

CAS: CATO-C3D-262674

In Stock95%

苯并氮杂卓并环衍生物类中间体亚硝胺杂质3 structure

苯并氮杂卓并环衍生物类中间体亚硝胺杂质3

CAS: CATO-C3D-262675

In Stock95%

苯并氮杂卓并环衍生物类中间体亚硝胺杂质4 structure

苯并氮杂卓并环衍生物类中间体亚硝胺杂质4

CAS: CATO-C3D-262676

In Stock95%

苯并氮杂卓并环衍生物类中间体亚硝胺杂质5 structure

苯并氮杂卓并环衍生物类中间体亚硝胺杂质5

CAS: CATO-C3D-262677

In Stock95%

苯并氮杂卓并环衍生物类中间体亚硝胺杂质6 structure

苯并氮杂卓并环衍生物类中间体亚硝胺杂质6

CAS: CATO-C3D-262678

In Stock95%

苯并氮杂卓并环衍生物类中间体亚硝胺杂质7 structure

苯并氮杂卓并环衍生物类中间体亚硝胺杂质7

CAS: CATO-C3D-262680

In Stock95%

Benzoyl 3-chlorobenzoyl peroxide structure

Benzoyl 3-chlorobenzoyl peroxide

CAS: 13495-28-8

In Stock97%+

Others Impurity 85 structure

Others Impurity 85

CAS: 731016-26-5

In Stock97%+

Promethazine EP Impurity C (R-Isomer) structure

Promethazine EP Impurity C (R-Isomer)

CAS: CATO-C3D-262692

In Stock95%

Pindolol EP Impurity E structure

Pindolol EP Impurity E

CAS: 2380-94-1

In Stock>95%

中间体Ⅱ亚硝胺杂质 structure

中间体Ⅱ亚硝胺杂质

CAS: CATO-C3D-262722

In Stock95%

侧链酸亚硝基杂质 structure

侧链酸亚硝基杂质

CAS: CATO-C3D-262723

In Stock95%

Others Impurity 86 structure

Others Impurity 86

CAS: CATO-C3D-262786

In Stock97%+

SM2 异构体杂质7 structure

SM2 异构体杂质7

CAS: CATO-C3D-262787

In Stock≥95%

SM1 异构体杂质2 structure

SM1 异构体杂质2

CAS: CATO-C3D-262788

In Stock≥95%

SM2 异构体杂质2 structure

SM2 异构体杂质2

CAS: CATO-C3D-262789

In Stock≥95%

SM2 异构体杂质1 structure

SM2 异构体杂质1

CAS: CATO-C3D-262790

In Stock≥95%

SM2 异构体杂质6 structure

SM2 异构体杂质6

CAS: CATO-C3D-262791

In Stock≥95%

SM1 异构体杂质6 structure

SM1 异构体杂质6

CAS: CATO-C3D-262792

In Stock≥95%

SM2 异构体杂质5 structure

SM2 异构体杂质5

CAS: CATO-C3D-262793

In Stock≥95%

SM1 异构体杂质5 structure

SM1 异构体杂质5

CAS: CATO-C3D-262794

In Stock≥95%

SM2 异构体杂质4 structure

SM2 异构体杂质4

CAS: CATO-C3D-262795

In Stock≥95%

SM1 异构体杂质7 structure

SM1 异构体杂质7

CAS: CATO-C3D-262796

In Stock≥95%

SM2 异构体杂质3 structure

SM2 异构体杂质3

CAS: CATO-C3D-262797

In Stock≥95%

比罗酯钠亚硝基杂质1 structure

比罗酯钠亚硝基杂质1

CAS: CATO-C3D-262837

In Stock>95%

比罗酯钠亚硝基杂质2 structure

比罗酯钠亚硝基杂质2

CAS: CATO-C3D-262838

In Stock≥95%

Ostarine(MK-2866)Impurity N1 structure

Ostarine(MK-2866)Impurity N1

CAS: CATO-C3D-262925

In Stock97%+

ATM Inhibitor N-Oxide Impurity 1 structure

ATM Inhibitor N-Oxide Impurity 1

CAS: CATO-C3D-262928

In Stock97%+

Fluchlorfenapyr Impurity 38 structure

Fluchlorfenapyr Impurity 38

CAS: 2129147-03-9

In Stock97%+

Cyantraniliprole Impurity A structure

Cyantraniliprole Impurity A

CAS: 736994-61-9

In Stock97%+

Cyantraniliprole Impurity B structure

Cyantraniliprole Impurity B

CAS: CATO-C3D-262951

In Stock97%+

Cyantraniliprole Impurity C structure

Cyantraniliprole Impurity C

CAS: CATO-C3D-262952

In Stock97%+

Cyantraniliprole Impurity IN-RYA13 structure

Cyantraniliprole Impurity IN-RYA13

CAS: 2957882-50-5

In Stock97%+

Cyantraniliprole Impurity IN-Q6S09 structure

Cyantraniliprole Impurity IN-Q6S09

CAS: CATO-C3D-262954

In Stock97%+

Others Impurity 262958 structure

Others Impurity 262958

CAS: CATO-C3D-262958

In Stock95%

New Drug Impurity 63 D5 structure

New Drug Impurity 63 D5

CAS: CATO-C3D-262963

In Stock97%+

Fosravuconazole Impurity 1 structure

Fosravuconazole Impurity 1

CAS: CATO-C3D-263000

In Stock97%+

Difenoconazole Impurity 2 structure

Difenoconazole Impurity 2

CAS: CATO-C3D-263028

In Stock97%+

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