Fig. 1.
Fig. 2.
Fig. 3.
Fig. 4.
Fig. 5.
Fig. 6.
Infrared (IR) spectrum of myrrh methanolic extract by frequency range_
| Absorption (cm−1) | Appearance | Transmittance (%) | Group | Compound class |
|---|---|---|---|---|
| 3423.13 | strong, broad | 3.026618 | O-H stretching | alcohol |
| 2969.17 | strong, broad | 7.255632 | N-H stretching | amine salt |
| 2932.49 | strong, broad | 6.570219 | N-H stretching | amine salt |
| 1739.07 | strong | 3.770522 | C+O stretching | esters |
| 1614.29 | strong | 6.823951 | C=C stretching | α,β-unsaturated ketone |
| 1438.45 | medium | 7.900225 | O-H bending | carboxylic acid |
| 1381.21 | strong | 6.630713 | S=O stretching | sulfonyl chloride |
| 1245.04 | medium | 7.112334 | C-N stretching | amine |
| 1039.34 | strong | 5.623318 | S=O stretching | sulfoxide |
| 766.62 | strong | 15.41832 | C-Cl stretching | halo compound |
| 729.36 | strong | 16.05396 | C=C bending | alkene |
| 597.88 | strong | 13.81419 | C-I stretching | halo compound |