Table 7 Toxicity categories and LD50 mg/kg values for selected chemical components derived from Melissa officinalis.

From: Antiviral potential of Melissa officinalis extracts against influenza and emerging coronaviruses

Compound

LD50 (mg/kg of body weight)

Toxicity class

5-Methyl-5 H-naphtho[2,3-c] carbazole

347

4

7 H-Dibenzo[b, g]carbazole, 7-methyl

347

4

Hesperidin

12,000

6

Luteolin-7-glucoside-3′-glucuronide

5000

5

Sagerinic acid

2000

4

Betulinic acid

2610

5

Ursolic acid

2000

4

Oleanolic acid

2000

4

2-[4-methyl-6-(2,6,6-trimethylcyclohex-1-enyl)hexa-1,3,5-trienyl]cyclohex-1-en-1-carboxaldehyde

10,000

6

Melitric acid A

500

4

Nepetoidin A

2980

5

Rosmarinic acid

5000

5

[5,9-Dimethyl-1-(3-phenyl-oxiran-2-yl)-deca-4,8-dienylidene]-(2-phenyl-aziridin-1-yl)-amine

400

4

Methyl arachidonate

20,000

6

Z, Z,Z-1,4,6,9-Nonadecatetraene

1680

4

Pregan-20-one, 2-hydroxy-5,6-epoxy-15-methyl

4290

5

N, N’-Bis(Carbobenzyloxy)-lysine methyl(ester)

1000

4

[1,3,5]Triazino[1,2-a][1,3]benzimidazol-2-amine, 1,4-dihydro-4-(2-methylphenyl)-

1100

4