Page 32 - phytochemistry I - PharmD Clinical

4. Resin alcohol (resinol): alcoholic compound with high mol. wt. e.g.
benzoresinol in benzoin & storesinol in storax.

5. Resin phenol (resino tannols): contains phenol group e.g. peru-
resinotannol in peru balsam & tolu-resinotannol in tolu balsam &
siaresinotannol in benzoin

• They are, in general, secretions of plant tissues, either:

a- Normal (natural). b- Pathological.

They are classified into:

1. Resin: e.g. Colophony.
2. Oleo-resin: volatile oil + resin: e.g. Mastic.
3. Oleo-gum-resin: volatile oil + gum + resin: e.g. Myrrh and

Olibanum.
4. Balsams: e.g. Benzoin
5. Glycoresins: resins when get combined with sugars by

glycosylation e.g. Convolvulaceae family drugs

A.Resins:

1. Colophony (Rosin)

Definition: Colophony is the solid resin left after distilling the volatile oil from
the oleo-resin obtained from Pinus palustris, P. toeda and other species of
Pinus, family Pinaceae.

Description:

- Rosin is typically a pale yellow, transparent, glassy solid, brittle and friable,
with a faint piny odor.

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