Chemical Composition and in Vitro Antioxidant, Anti-Alzheimer, Anti-Diabetic, Anti-Tyrosinase, and Antimicrobial Properties of Essential Oils and Extracts Derived from Various Parts of the Algerian Calendula Suffruticosa Vahlsubsp. boissieri Lanza.

Calendula suffruticosa Vahl subsp. boissieri Lanza is well-known for its medicinal properties in northeastern Algeria. As far as literature has been able to prove, no study has attempted to make a phytochemical or biological activity evaluation (antioxidants, enzyme inhibitors and antimicrobial potential).

4-Methyl-anilinium nitrate.

The asymmetric unit of the title compound, C(7)H(10)N(+)·NO(3) (-), consists of a 4-methyl-anilinium cation protonated at the amino group and a nitrate anion. In the crystal, anions and cations are linked through N-H⋯O and N-H⋯(O,O) hydrogen bonds, buiding a corrugated layer structure parallel to (001).