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Impurities

SynThink is a trusted producer and supplier of Pharmaceutical Reference Standards, including Impurity Standards. These materials are essential for pharmaceutical companies conducting research into the quality, stability, and biological safety of drug products. We maintain a robust inventory of API impurities, ready to support your development and regulatory needs.

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Methyl-Dihydropurinone {6-amino-2-[1-(2-fluorobenzyl)-1H-pyrazolo [3, 4-b] pyridin-3-yl]-7-methyl-7, 9-dihydro-8H-purin-8-one}

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Not Available

CAS No.

Mol F.

Mol W.

Cat No.

Methyldopa EP Impurity A | CAS : 6739-31-7

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Not Available

CAS No.

Mol F.

Mol W.

Cat No.

Methyldopa EP Impurity A | CAS : 6739-31-7

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Not Available

CAS No.

Mol F.

Mol W.

Cat No.

Methylene Methanone Impurity

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Not Available

CAS No.

Mol F.

Mol W.

Cat No.

Methylprednisolone Acetate

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Not Available

CAS No.

Mol F.

Mol W.

Cat No.

Methylprednisolone Acetate EP Impurity H

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Not Available

CAS No.

Mol F.

Mol W.

Cat No.

Methylprednisolone Acetate EP Impurity I

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Not Available

CAS No.

Mol F.

Mol W.

Cat No.

Methylprednisolone Acetate EP Impurity J

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Not Available

CAS No.

Mol F.

Mol W.

Cat No.

Methylprednisolone Acetate Impurity D

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Not Available

CAS No.

Mol F.

Mol W.

Cat No.

Methylprednisolone EP Impurity H

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Not Available

CAS No.

Mol F.

Mol W.

Cat No.

Methylprednisolone EP Impurity K

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Not Available

CAS No.

Mol F.

Mol W.

Cat No.

Metoclopramide

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Not Available

CAS No.

Mol F.

Mol W.

Cat No.

Metoclopramide EP Impurity A

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Not Available

CAS No.

Mol F.

Mol W.

Cat No.

Metoclopramide EP Impurity B

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Not Available

CAS No.

Mol F.

Mol W.

Cat No.

Metoclopramide EP Impurity C

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Not Available

CAS No.

Mol F.

Mol W.

Cat No.

Metoclopramide EP Impurity D

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Not Available

CAS No.

Mol F.

Mol W.

Cat No.

Metoclopramide EP Impurity E

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Not Available

CAS No.

Mol F.

Mol W.

Cat No.

Metoclopramide EP Impurity F

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Not Available

CAS No.

Mol F.

Mol W.

Cat No.

Metoclopramide EP Impurity G

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Not Available

CAS No.

Mol F.

Mol W.

Cat No.

Metoclopramide EP Impurity H

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Not Available

CAS No.

Mol F.

Mol W.

Cat No.

Metoprolol

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Not Available

CAS No.

Mol F.

Mol W.

Cat No.

Metoprolol Acid Ethyl Ester

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Not Available

CAS No.

Mol F.

Mol W.

Cat No.

Impurities, Metoprolol

Metoprolol Acid Methyl Ester

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CAS No.

: 29121-23-1 (base) ; 83281-59-8 (HCL salt)

Mol F.

: C15H23NO4

Mol W.

: 281.35

Cat No.

: SA41419

Impurities, Metoprolol

Metoprolol Bis Propanol

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CAS No.

: 230975-30-1

Mol F.

: C21H28O5

Mol W.

: 360.44

Cat No.

: SA41422

Impurities, Metoprolol

Metoprolol EP Impurity A

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CAS No.

: 109632-08-8

Mol F.

: C14H23NO3

Mol W.

: 253.34

Cat No.

: SA41401

Impurities, Metoprolol

Metoprolol EP Impurity B

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CAS No.

: 56718-71-9

Mol F.

: C‰H‚O‚

Mol W.

: 152.19

Cat No.

: SA41402

Impurities, Metoprolol

Metoprolol EP Impurity C

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CAS No.

: 29122-74-5

Mol F.

: C13H19NO3

Mol W.

: 237.29

Cat No.

: SA41403

Impurities, Metoprolol

Metoprolol EP Impurity D

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CAS No.

: 62572-90-1

Mol F.

: C‚HˆO„

Mol W.

: 226.27

Cat No.

: SA41404

Metoprolol EP Impurity E

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Not Available

CAS No.

Mol F.

Mol W.

Cat No.

Metoprolol EP Impurity F

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Not Available

CAS No.

Mol F.

Mol W.

Cat No.

Metoprolol EP Impurity G

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Not Available

CAS No.

Mol F.

Mol W.

Cat No.

Metoprolol EP Impurity H

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Not Available

CAS No.

Mol F.

Mol W.

Cat No.

Metoprolol EP Impurity J

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Not Available

CAS No.

Mol F.

Mol W.

Cat No.

Impurities, Metoprolol

Metoprolol EP Impurity M

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CAS No.

: 343785-33-1

Mol F.

: C9H22N2O

Mol W.

: 174.28

Cat No.

: SA41410

Metoprolol EP Impurity N

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Not Available

CAS No.

Mol F.

Mol W.

Cat No.

Metoprolol EP Impurity O

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Not Available

CAS No.

Mol F.

Mol W.

Cat No.

Metoprolol Epoxy Ester Impurity

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Not Available

CAS No.

Mol F.

Mol W.

Cat No.

Impurities, Metoprolol

Metoprolol Epoxy Hydroxyethyl Impurity

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CAS No.

: 104857-48-9

Mol F.

: C11H14O3

Mol W.

: 194.23

Cat No.

: SA41420

Metoprolol Epoxy Impurity

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Not Available

CAS No.

Mol F.

Mol W.

Cat No.

Impurities, Metoprolol

Metoprolol Epoxy Methoxyethyl Impurity

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CAS No.

: 56718-70-8

Mol F.

: C12H16O3

Mol W.

: 208.25

Cat No.

: SA41421

Impurities, Metoprolol

Metoprolol Hydroxy Ester Impurity

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CAS No.

: 17138-28-2

Mol F.

: C10H12O3

Mol W.

: 180.2

Cat No.

: SA41417

Impurities, Metoprolol

Metoprolol R-Isomer

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CAS No.

: 81024-43-3

Mol F.

: C15H25NO3

Mol W.

: 267.36

Cat No.

: SA41414

Impurities, Metoprolol

Metoprolol S-Isomer

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CAS No.

: 81024-42-2

Mol F.

: C15H25NO3

Mol W.

: 267.36

Cat No.

: SA41415

Impurities, Metoprolol

Metoprolol USP RC B

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CAS No.

: 56718-76-4

Mol F.

: C12H17ClO3

Mol W.

: 244.71

Cat No.

: SA41423

Miconazole EP Impurity C

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Not Available

CAS No.

Mol F.

Mol W.

Cat No.

Midazolam EP Impurity B

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Not Available

CAS No.

Mol F.

Mol W.

Cat No.

Midazolam Impurity D

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Not Available

CAS No.

Mol F.

Mol W.

Cat No.

Milnacipran EP Impurity A

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Not Available

CAS No.

Mol F.

Mol W.

Cat No.

Milnacipran EP Impurity E

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Not Available

CAS No.

Mol F.

Mol W.

Cat No.

Milnacipran EP Impurity F

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Not Available