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Entacapone Impurity 4

Entacapone Impurity 4

Product Description
CAT No.
ALN-E013015
CAS No.
1202160-40-4
Mol. F.
C11H8N2O6
Mol. Wt.
264.2
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RFQ
Chemical Name : (E)-2-Cyano-3-(4-hydroxy-3-methoxy-5-nitrophenyl)acrylic acid
Smiles : OC1=C(OC)C=C(/C=C(C(O)=O)\C#N)C=C1[N+]([O-])=O
Inchi : InChI=1/C21H28N4O4/c1-5-24(6-2)20(28)15(12-22)19(14-9-10-17(26)18(27)11-14)16(13-23)21(29)25(7-3)8-4/h9-11,15-16,19,26-27H,5-8H2,1-4H3

Development and Validation of a RP-HPLC Method for Determination of Related Substances and Degradants in Entacapone

Dasari Purnachand, Arava Veerareddy, Bhoomireddy Ramadevi, Ch.V.S.L. Kameswarrao, Bethi MadhusudhanreddynJournal of Chromatographic Science, Volume 54, Issue 8, September 2016, Pages 1310u20131323

Quantification of intermediate, unknown impurities and z isomer in entacapone api by hplc

Shashikant Aswale, Sunanda Aswale, Sachin Zade and Padma – Aswale et al., IJPSR, 2015; Vol. 6(7): 3076-3082.

Analytical Method Development and Validation of Entacapone Drug by Modern LC-MS/MS Method to Quantify the Genotoxic Impurity

Murali Krishna Prasad Vallabhaneni1,2

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