Impurities Product List

PROJECT NAME: MOLNUPIRAVIR
Sr. No. Abbreviation Name Structure Quantity Cost
1. Impurity A

 

CAS No:
3258-02-4

 1-[(2R,3R,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]-4-(hydroxyamino)pyrimidin-2-one

 

C9H15N3O7
Mol. Wt.: 277.23
2.  

CAS No:
138421-23-5

 2-Propanone, O-(2-methyl-1-oxopropyl) Oxime

 

C7H13NO2
Mol. Wt.: 143.18
3.  

CAS No:
65-46-3

 4-amino-1-[(2R,3R,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]pyrimidin-2-one

 

C9H13N3O5
Mol. Wt.: 243.22
4. Impurity B

 

CAS No:
2346620-55-9

 ((3aR,4R,6R,6aR)-6-(4-(Hydroxyimino)-2-oxo-3,4-dihydropyrimidin-1(2H)-yl)-2,2-dimethyltetrahydrofuro[3,4-d][1,3]dioxol-4-yl)methyl Isobutyrate

 

C16H23N3O7
Mol. Wt.: 369.37
5.  

CAS No:
1686124-74-2

 ((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

 

C16H23N3O6
Mol. Wt.: 353.37
6.  

CAS No:
1955522-00-5

 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

 

C12H19N3O9S
Mol. Wt.: 381.36
7.  

CAS No:
NA

 Diacylated Impurity

 

C17H25N3O8
Mol. Wt.: 399.40
8.  

CAS No:
58-96-8

 1-[(2R,3R,4S,5R)-3,4-Dihydroxy-5-(hydroxymethyl)oxolan-2-yl]pyrimidine-2,4(1H,3H)-dione

 

C9H12N2O6
Mol. Wt.: 244.20
9.  

CAS No:
NA

 Uridine Acylation

 

C13H18N2O7
Mol. Wt.: 314.29
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