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Pharmaceutical Impurity Reference Standards

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

Piracetam Impurity 8 structure

Piracetam Impurity 8

CAS: 2609-10-1

In Stock97%+

Pirenoxine Impurity 1 structure

Pirenoxine Impurity 1

CAS: 41827-15-0

In Stock97%+

Piretanide EP Impurity A structure

Piretanide EP Impurity A

CAS: 67641-46-7

In Stock97%+

Piribedil Impurity N1 structure

Piribedil Impurity N1

CAS: 75875-58-0

In Stock97%+

Piribedil Impurity N4 structure

Piribedil Impurity N4

CAS: 55436-41-4

In Stock97%+

Piribedil Impurity N2 structure

Piribedil Impurity N2

CAS: 263-29-6

In Stock97%+

Piribedil Impurity S DiHCl structure

Piribedil Impurity S DiHCl

CAS: 19971-73-4

In Stock97%+

Pitavastatin Impurity N4 structure

Pitavastatin Impurity N4

CAS: 688735-41-3

In Stock97%+

Pitavastatin Hydroxymethyl Impurity structure

Pitavastatin Hydroxymethyl Impurity

CAS: 24922-02-9

In Stock97%+

Pitavastatin Impurity 16 structure

Pitavastatin Impurity 16

CAS: 849811-78-5

In Stock97%+

Pitavastatin Impurity 19 structure

Pitavastatin Impurity 19

CAS: 3800-06-4

In Stock97%+

Pivmecillinam EP Impurity A structure

Pivmecillinam EP Impurity A

CAS: 25031-06-5

In Stock97%+

Plerixafor Impurity 10 structure

Plerixafor Impurity 10

CAS: 74676-47-4

In Stock97%+

Plerixafor Impurity C86 structure

Plerixafor Impurity C86

CAS: 406939-92-2(free base)

In Stock≥95%

Plerixafor Impurity 35 structure

Plerixafor Impurity 35

CAS: 214078-93-0

In Stock97%+

Podophyllotoxin EP Impurity C structure

Podophyllotoxin EP Impurity C

CAS: 477-49-6

In Stock97%+

Polaprezinc Impurity N1 structure

Polaprezinc Impurity N1

CAS: 46119-06-6 (free base)

In Stock97%+

Policresulen Impurity 14 structure

Policresulen Impurity 14

CAS: 41481-17-8

In Stock97%+

Policresulen Impurity 9 structure

Policresulen Impurity 9

CAS: 69103-65-7

In Stock97%+

Polmacoxib Impurity 1 structure

Polmacoxib Impurity 1

CAS: 301693-50-5

In Stock97%+

Polygonatine A Impurity 2 structure

Polygonatine A Impurity 2

CAS: 400715-60-8

In Stock97%+

Pomalidomide Impurity 19 structure

Pomalidomide Impurity 19

CAS: 39133-20-5

In Stock97%+

Pomalidomide Impurity 3 structure

Pomalidomide Impurity 3

CAS: 328-48-3

In Stock97%+

Potassium Clavulanate Impurity 3 structure

Potassium Clavulanate Impurity 3

CAS: 869-74-9

In Stock97%+

Potassium Otiraci Impurity 2 structure

Potassium Otiraci Impurity 2

CAS: 3720-97-6

In Stock97%+

Pralatrexate Impurity 2 structure

Pralatrexate Impurity 2

CAS: 52454-37-2

In Stock97%+

Pralatrexate Impurity 8 structure

Pralatrexate Impurity 8

CAS: 374777-77-2

In Stock97%+

Pramipexole Impurity 34 structure

Pramipexole Impurity 34

CAS: 63467-09-4

In Stock97%+

Pramipexole Impurity 50 structure

Pramipexole Impurity 50

CAS: 908244-04-2

In Stock97%+

Prasugrel Impurity N1 structure

Prasugrel Impurity N1

CAS: 201049-78-7

In Stock97%+

Prasugrel Impurity 27 structure

Prasugrel Impurity 27

CAS: 88106-31-4

In Stock97%+

Prasugrel Impurity 36 structure

Prasugrel Impurity 36

CAS: 866761-69-5

In Stock97%+

Prasugrel Impurity 37 structure

Prasugrel Impurity 37

CAS: 866761-71-9

In Stock97%+

Prasugrel Impurity 38 structure

Prasugrel Impurity 38

CAS: 866761-70-8

In Stock97%+

Prasugrel Impurity 39 structure

Prasugrel Impurity 39

CAS: 866761-68-4

In Stock97%+

Prasugrel Impurity 6 structure

Prasugrel Impurity 6

CAS: 929211-64-3

In Stock97%+

Praziquantel Impurity 1 structure

Praziquantel Impurity 1

CAS: 60743-58-0

In Stock97%+

Praziquantel Impurity 1 structure

Praziquantel Impurity 1

CAS: 90142-14-6

In Stock97%+

Praziquantel Impurity 3 structure

Praziquantel Impurity 3

CAS: 94494-35-6

In Stock97%+

pre-Calcitriol PTAD Adduct (impurity) structure

pre-Calcitriol PTAD Adduct (impurity)

CAS: 86307-31-5

In Stock97%+

Prednicarbate EP Impurity C structure

Prednicarbate EP Impurity C

CAS: 5740-62-5

In Stock97%+

Prednisolone EP Impurity A Hydrochloride structure

Prednisolone EP Impurity A Hydrochloride

CAS: 393782-60-0

In Stock97%+

Prednisolone Impurity 37 structure

Prednisolone Impurity 37

CAS: 307518-72-5

In Stock97%+

Prednisolone Impurity 5 structure

Prednisolone Impurity 5

CAS: 2141-22-2

In Stock97%+

Prednisone Impurity 14 structure

Prednisone Impurity 14

CAS: 94088-91-2

In Stock97%+

Prednisone Impurity 28 (20(S)-Hydroxy Methylprednisolone) structure

Prednisone Impurity 28 (20(S)-Hydroxy Methylprednisolone)

CAS: 387-66-6

In Stock97%+

Prednisone Impurity 29 (20(R)-Hydroxy Methylprednisolone) structure

Prednisone Impurity 29 (20(R)-Hydroxy Methylprednisolone)

CAS: 387-65-5

In Stock97%+

Pregabalin Diacid Impurity structure

Pregabalin Diacid Impurity

CAS: 5702-99-8

In Stock97%+

Pregabalin Impurity 31 structure

Pregabalin Impurity 31

CAS: 42201-43-4

In Stock97%+

Pregabalin Impurity 34 structure

Pregabalin Impurity 34

CAS: 930280-44-7

In Stock97%+

Pregabalin Impurity 54 structure

Pregabalin Impurity 54

CAS: 51424-01-2

In Stock97%+

Pregabalin Impurity 7 structure

Pregabalin Impurity 7

CAS: 890044-38-9

In Stock97%+

Pregabalin Impurity 75 structure

Pregabalin Impurity 75

CAS: 313651-25-1

In Stock97%+

Pregabalin Impurity 96 structure

Pregabalin Impurity 96

CAS: 51615-30-6

In Stock97%+

Pregabalin Impurity 99 structure

Pregabalin Impurity 99

CAS: 949890-75-9

In Stock97%+

Pregabalin impurity 01 structure

Pregabalin impurity 01

CAS: 466678-45-5

In Stock97%+

Pretomanid Impurity 11 structure

Pretomanid Impurity 11

CAS: 24331-72-4

In Stock97%+

Pridinol Impurity 1 structure

Pridinol Impurity 1

CAS: 53639-82-0

In Stock97%+

Prilocaine EP Impurity C structure

Prilocaine EP Impurity C

CAS: 42459-37-0

In Stock97%+

Prilocaine EP Impurity D structure

Prilocaine EP Impurity D

CAS: 875252-65-6

In Stock97%+

Prilocaine Impurity 03 structure

Prilocaine Impurity 03

CAS: 37394-93-7

In Stock97%+

Primaquine EP Impurity C structure

Primaquine EP Impurity C

CAS: 90-52-8

In Stock97%+

Primaquine Impurity 3 structure

Primaquine Impurity 3

CAS: 57695-07-5

In Stock97%+

Quinocide (Primaquine EP Impurity A) structure

Quinocide (Primaquine EP Impurity A)

CAS: 525-61-1

In Stock97%+

Primidone EP Impurity D structure

Primidone EP Impurity D

CAS: 80544-75-8

In Stock97%+

Probenecid EP Impurity B structure

Probenecid EP Impurity B

CAS: 723-42-2

In Stock97%+

Probenecid EP Impurity D structure

Probenecid EP Impurity D

CAS: 70190-76-0

In Stock97%+

Procaine Impurity N3 structure

Procaine Impurity N3

CAS: 769864-93-9(free base)

In Stock97%+

Prochlorperazine Impurity 2 structure

Prochlorperazine Impurity 2

CAS: 879495-68-8

In Stock97%+

Progesterone Impurity N2 structure

Progesterone Impurity N2

CAS: 40736-33-2

In Stock97%+

Progesterone Bisnoraldehyde Impurity structure

Progesterone Bisnoraldehyde Impurity

CAS: 81201-82-3

In Stock97%+

Progesterone Impurity 1 structure

Progesterone Impurity 1

CAS: 37717-13-8

In Stock97%+

Progesterone Impurity 10 (3β, 20S)-Pregn-5-ene-3,17,20-triol Sulfate) structure

Progesterone Impurity 10 (3β, 20S)-Pregn-5-ene-3,17,20-triol Sulfate)

CAS: 4080-06-2

In Stock97%+

Progesterone Impurity 17 structure

Progesterone Impurity 17

CAS: 20248-18-4

In Stock97%+

(20R)-Progesterone EP Impurity I
structure

(20R)-Progesterone EP Impurity I

CAS: 66289-21-2

In Stock97%+

Progesterone Impurity 23 structure

Progesterone Impurity 23

CAS: 21063-91-2

In Stock97%+

Progesterone Impurity N5 structure

Progesterone Impurity N5

CAS: 35525-27-0

In Stock97%+

Progesterone Impurity N1(Mixture of Diastereomers) structure

Progesterone Impurity N1(Mixture of Diastereomers)

CAS: 71658-22-5

In Stock97%+

Progesterone Impurity N3 structure

Progesterone Impurity N3

CAS: 5327-60-6

In Stock97%+

Progesterone Impurity 9 structure

Progesterone Impurity 9

CAS: 641-80-5

In Stock97%+

Proguanil EP Impurity A structure

Proguanil EP Impurity A

CAS: 44830-55-9

In Stock97%+

Proguanil EP Impurity D structure

Proguanil EP Impurity D

CAS: 45095-69-0

In Stock97%+

Proguanil EP Impurity D Hydrochloride structure

Proguanil EP Impurity D Hydrochloride

CAS: 35708-82-8

In Stock97%+

Proguanil EP Impurity F structure

Proguanil EP Impurity F

CAS: 537-21-3

In Stock97%+

Proguanil EP Impurity F Hydrochloride structure

Proguanil EP Impurity F Hydrochloride

CAS: 6001-93-0

In Stock97%+

Proguanil EP Impurity G structure

Proguanil EP Impurity G

CAS: 807308-41-4

In Stock97%+

Proline Impurity 1 structure

Proline Impurity 1

CAS: 40856-87-9

In Stock97%+

Proline Impurity 2 structure

Proline Impurity 2

CAS: 674292-94-5

In Stock97%+

Proline Impurity 3 structure

Proline Impurity 3

CAS: 2812-47-7

In Stock97%+

Proline Impurity 4 structure

Proline Impurity 4

CAS: 98262-66-9

In Stock97%+

Promazine Impurity 1 structure

Promazine Impurity 1

CAS: 89453-67-8

In Stock97%+

Promethazine Impurity C18 HCI structure

Promethazine Impurity C18 HCI

CAS: 17256-39-2

In Stock97%+

Promethazine Impurity 17 structure

Promethazine Impurity 17

CAS: 39796-64-0

In Stock97%+

Promethazine Impurity 22 structure

Promethazine Impurity 22

CAS: 37143-56-9

In Stock97%+

Promethazine Impurity 30 structure

Promethazine Impurity 30

CAS: 3568-81-8

In Stock97%+

Perindopril Impurity N83 structure

Perindopril Impurity N83

CAS: 66854-99-7

In Stock97%+

Proparacaine Impurity 15 structure

Proparacaine Impurity 15

CAS: 2102411-30-1

In Stock97%+

Propiverine Impurity N1 HCl structure

Propiverine Impurity N1 HCl

CAS: 54556-99-9

In Stock97%+

Propiverine Hydrochloride Impurity D structure

Propiverine Hydrochloride Impurity D

CAS: 3608-67-1

In Stock97%+

Propofol Impurity 19 structure

Propofol Impurity 19

CAS: 20748-66-7

In Stock97%+

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