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An oral antiviral for COVID-19. Introduces errors into viral RNA, preventing replication of SARS-CoV-2.

Cleanchem is a trusted provider of premium pharmaceutical reference materials, specializing in Molnupiravir and its associated compounds. Our catalog includes pharmacopeial and non-pharmacopeial Molnupiravir impurities, metabolites, nitrosamine derivatives (N-NO compounds), and stable isotope-labeled products. These reference standards play a critical role in pharmaceutical R&D, supporting activities such as product formulation, ANDA and DMF submissions, quality assurance, analytical method development, and stability assessments.
All Molnupiravir-related substances undergo comprehensive characterization and are delivered with complete Certificates of Analysis and supporting analytical documentation to ensure regulatory adherence. Upon request, we can offer EP/USP traceable standards. Our products are routinely re-evaluated to maintain consistent quality and performance.

Molnupiravir

CAT No: CL-MPVR-01 CAS No: 2492423-29-5 Mol Wt: 329.3 Mol F: C13H19N3O7 Inv Status: Custom Synthesis

Chemical Name: ((2R,3S,4R,5R)-3,4-Dihydroxy-5-((Z)-4-(hydroxyimino)-2-oxo-3,4-dihydropyrimidin-1(2H)-yl)tetrahydrofuran-2-yl)methyl isobutyrate

Molnupiravir Dimethyl Dioxol Impurity

CAT No: CL-MPVR-02 CAS No: 2346620-55-9 Mol Wt: 369.4 Mol F: C16H23N3O7 Inv Status: In Stock

Chemical Name: ((3aR,4R,6R,6aR)-6-((Z)-4-(Hydroxyimino)-2-oxo-3,4-dihydropyrimidin-1(2H)-yl)-2,2-dimethyltetrahydrofuro[3,4-d][1,3]dioxol-4-yl)methyl isobutyrate

Molnupiravir Impurity 1

CAT No: CL-MPVR-03 CAS No: 886538-48-3 Mol Wt: 314.3 Mol F: C13H18N2O7 Inv Status: Custom Synthesis

Chemical Name: (((2R,3S,4R,5R)-3,4-Dihydroxy-5-(4-hydroxy-2-oxopyrimidin-1(2H)-yl)tetrahydrofuran-2-yl)methyl isobutyrate)

Molnupiravir Acetyl Impurity

CAT No: CL-MPVR-06 CAS No: NA Mol Wt: 301.3 Mol F: C11H15N3O7 Inv Status: Custom Synthesis

Chemical Name: ((2R,3S,4R,5R)-3,4-dihydroxy-5-(4-(hydroxyamino)-2-oxopyrimidin-1(2H)-yl)tetrahydrofuran-2-yl)methyl acetate

Molnupiravir Impurity 6

CAT No: CL-MPVR-08 CAS No: NA Mol Wt: 329.3 Mol F: C13H19N3O7 Inv Status: Custom Synthesis

Chemical Name: ((2S,3R,4S,5S)-3,4-dihydroxy-5-(4-(hydroxyamino)-2-oxopyrimidin-1(2H)-yl)tetrahydrofuran-2-yl)methyl isobutyrate

Molnupiravir Impurity 7

CAT No: CL-MPVR-09 CAS No: NA Mol Wt: 329.3 Mol F: C13H19N3O7 Inv Status: Custom Synthesis

Chemical Name: ((2R,3S,4R,5S)-3,4-dihydroxy-5-(4-(hydroxyamino)-2-oxopyrimidin-1(2H)-yl)tetrahydrofuran-2-yl)methyl isobutyrate

Molnupiravir Impurity 8

CAT No: CL-MPVR-10 CAS No: 2684302-84-7 Mol Wt: 399.4 Mol F: C17H25N3O8 Inv Status: Custom Synthesis

Chemical Name: (((2R,3S,4R,5R)-3,4-Dihydroxy-5-(4-hydroxy-2-oxopyrimidin-1(2H)-yl)tetrahydrofuran-2-yl)methyl isobutyrate)

Molnupiravir Impurity 11

CAT No: CL-MPVR-13 CAS No: 362-43-6 Mol Wt: 284.3 Mol F: C12H16N2O6 Inv Status: Custom Synthesis

Chemical Name: 2',3'-O-Isopropylideneuridine

Molnupiravir Impurity 12

CAT No: CL-MPVR-14 CAS No: 2346620-54-8 Mol Wt: 405.4 Mol F: C18H23N5O6 Inv Status: Custom Synthesis

Chemical Name: ((3aR,4R,6R,6aR)-2,2-Dimethyl-6-(2-oxo-4-(1H-1,2,4-triazol-1-yl)pyrimidin-1(2H)-yl)tetrahydrofuro[3,4-d][1,3]dioxol-4-yl)methyl isobutyrate; ((3aR,4R,6R,6aR)-2,2-dimethyl-6-(2-oxo-4-(1H-1,2,4-triazol-1-yl)pyrimidin-1(2H)-yl)tetrahydrofuro[3,4-d][1,3]dioxol-4-yl)methyl isobutyrate(BJPQ-SL-3)

2',3'-Isopropylidenecytidine

CAT No: CL-MPVR-15 CAS No: 362-42-5 Mol Wt: 283.3 Mol F: C12H17N3O5 Inv Status: Custom Synthesis

Chemical Name: 4-Amino-1-((3aR,4R,6R,6aR)-6-(hydroxymethyl)-2,2-dimethyltetrahydrofuro[3,4-d][1,3]dioxol-4-yl)pyrimidin-2(1H)-one

2',3'-Isopropylidenecytidine Sulfate

CAT No: CL-MPVR-16 CAS No: 1955522-00-5 Mol Wt: 283.3 98.1 Mol F: C12H17N3O5 H2O4S Inv Status: Custom Synthesis

Chemical Name: 4-Amino-1-((3aR,4R,6R,6aR)-6-(hydroxymethyl)-2,2-dimethyltetrahydrofuro[3,4-d][1,3]dioxol-4-yl)pyrimidin-2(1H)-one sulfate

Molnupiravir Impurity B

CAT No: CL-MPVR-17 CAS No: 2/8/3258 Mol Wt: 259.22 Mol F: C9H13N3O6 Inv Status: In Stock

Chemical Name: 1-((2R,3R,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)-4-(hydroxyamino)pyrimidin-2(1H)-one

Molnupiravir Impurity E

CAT No: CL-MPVR-18 CAS No: 1955522-00-5 Mol Wt: 283.3 : 98.1 Mol F: C12H17N3O5 : H2O4S Inv Status: In Stock

Chemical Name: 4-Amino-1-((3aR,4R,6R,6aR)-6-(hydroxymethyl)-2,2-dimethyltetrahydrofuro[3,4-d][1,3]dioxol-4-yl)pyrimidin-2(1H)-one sulfate

Molnupiravir Impurity 10

CAT No: CL-MPVR-19 CAS No: NA Mol Wt: 243.2 Mol F: C9H13N3O5 Inv Status: Custom Synthesis

Chemical Name: 6-amino-1-((2R,3R,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)pyrimidin-2(1H)-one

Molnupiravir Impurity C

CAT No: CL-MPVR-20 CAS No: NA Mol Wt: 314.29 Mol F: C13H18N2O7 Inv Status: In Stock

Chemical Name: ((2R,3S,4R,5R)-3,4-dihydroxy-5-(4-hydroxy-2-oxopyrimidin-1(2H)-yl)tetrahydrofuran-2-yl)methyl isobutyrate

Molnupiravir Impurity 14

CAT No: CL-MPVR-21 CAS No: NA Mol Wt: 402.4 Mol F: C16H26N4O8 Inv Status: Custom Synthesis

Chemical Name: ((3aR,4R,6R,6aR)-6-(4,6-bis(hydroxyamino)-2-oxo-5,6-dihydropyrimidin-1(2H)-yl)-2,2-dimethyltetrahydrofuro[3,4-d][1,3]dioxol-4-yl)methyl isobutyrate

Molnupiravir Impurity 15

CAT No: CL-MPVR-22 CAS No: 2346619-88-1 Mol Wt: 469.5 Mol F: C21H31N3O9 Inv Status: Custom Synthesis

Chemical Name: (2R,3R,4R,5R)-2-(4-(hydroxyimino)-2-oxo-3,4-dihydropyrimidin-1(2H)-yl)-5-((isobutyryloxy)methyl)tetrahydrofuran-3,4-diyl bis(2-methylpropanoate)

Molnupiravir Impurity 16

CAT No: CL-MPVR-23 CAS No: NA Mol Wt: 386.4 Mol F: C16H26N4O7 Inv Status: Custom Synthesis

Chemical Name: ((3aR,4R,6R,6aR)-6-(2,4-Bis(hydroxyamino)pyrimidin-1(2H)-yl)-2,2-dimethyltetrahydrofuro[3,4-d][1,3]dioxol-4-yl)methyl isobutyrate

Molnupiravir Impurity 17

CAT No: CL-MPVR-24 CAS No: NA Mol Wt: 369.4 Mol F: C16H23N3O7 Inv Status: Custom Synthesis

Chemical Name: ((3aS,4S,6S,6aS)-6-(4-(hydroxyamino)-2-oxopyrimidin-1(2H)-yl)-2,2-dimethyltetrahydrofuro[3,4-d][1,3]dioxol-4-yl)methyl isobutyrate

Molnupiravir Impurity 18

CAT No: CL-MPVR-25 CAS No: NA Mol Wt: 353.4 Mol F: C16H23N3O6 Inv Status: Custom Synthesis

Chemical Name: ((3aS,4S,6S,6aS)-6-(4-amino-2-oxopyrimidin-1(2H)-yl)-2,2-dimethyltetrahydrofuro[3,4-d][1,3]dioxol-4-yl)methyl isobutyrate

Molnupiravir Impurity 3

CAT No: CL-MPVR-26 CAS No: 13491-41-3 Mol Wt: 259.2 Mol F: C9H13N3O6 Inv Status: Custom Synthesis

Chemical Name: (E)-1-((2R,3S,4S,5R)-3,4-Dihydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)-4-(hydroxyimino)-3,4-dihydropyrimidin-2(1H)-one

Molnupiravir Impurity 9

CAT No: CL-MPVR-27 CAS No: NA Mol Wt: 243.2 Mol F: C9H13N3O5 Inv Status: Custom Synthesis

Chemical Name: 4-(((2R,3R,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)amino)pyrimidin-2(1H)-one

N(4)-Hydroxycytidine

CAT No: CL-MPVR-28 CAS No: 4/2/3258 Mol Wt: 259.2 Mol F: C9H13N3O6 Inv Status: Custom Synthesis

Chemical Name: 1-((2R,3R,4S,5R)-3,4-Dihydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)-4-(hydroxyamino)pyrimidin-2(1H)-one

N-Butyl Molnupiravir

CAT No: CL-MPVR-29 CAS No: 2770244-32-9 Mol Wt: 329.3 Mol F: C13H19N3O7 Inv Status: Custom Synthesis

Chemical Name: ((2R,3S,4R,5R)-3,4-dihydroxy-5-((Z)-4-(hydroxyimino)-2-oxo-3,4-dihydropyrimidin-1(2H)-yl)tetrahydrofuran-2-yl)methyl butyrate

Molnupiravir Impurity 2

CAT No: CL-MPVR-30 CAS No: 1686124-74-2 Mol Wt: 353.4 Mol F: C16H23N3O6 Inv Status: Custom Synthesis

Chemical Name: (((3aR,4R,6R,6aR)-6-(4-Amino-2-oxopyrimidin-1(2H)-yl)-2,2-dimethyltetrahydrofuro[3,4-d][1,3]dioxol-4-yl)methyl isobutyrate)

Molnupiravir Dimethyl Dioxol Impurity

CAT No: CL-MPVR-31 CAS No: 2346620-55-9 Mol Wt: 369.4 Mol F: C16H23N3O7 Inv Status: Custom Synthesis

Chemical Name: ((3aR,4R,6R,6aR)-6-((Z)-4-(Hydroxyimino)-2-oxo-3,4-dihydropyrimidin-1(2H)-yl)-2,2-dimethyltetrahydrofuro[3,4-d][1,3]dioxol-4-yl)methyl isobutyrate

Molnupiravir Impurity 13

CAT No: CL-MPVR-32 CAS No: 886538-46-1 Mol Wt: 313.3 Mol F: C13H19N3O6 Inv Status: Custom Synthesis

Chemical Name: ((2R,3S,4R,5R)-5-(4-Amino-2-oxopyrimidin-1(2H)-yl)-3,4-dihydroxytetrahydrofuran-2-yl)methyl isobutyrate

Type:Impurity Reference Standard

Total Products: 27

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An oral antiviral for COVID-19. Introduces errors into viral RNA, preventing replication of SARS-CoV-2.

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