4,5-Dichloro-1,2-phenylenediamine

It serves as the benzene ring component of the benzimidazole scaffold, in which the two amino groups are used to form the imidazole ring, and the chlorine atoms provide the 5,6-substitution pattern essential for antiviral activity. 4,5-Dichloro-1,2-phenylenediamine (also known as 4,5-dichloro-o-phenylenediamine) is a critical raw material employed to synthesize Maribavir (2-isopropylamino-5,6-dichloro-1-(β-L-ribofuranosyl)benzimidazole).

API Name Maribavir
CAS No 5348-42-5
Molecular Formula C6H6Cl2N2
Molecular Weight 177.03 g/mol
Synonyms 4,5-dichlorobenzene-1,2-diamine

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