Nomenclature
CAS number: 9010-29-1
Methyleneditannin; tannin-formaldehyde; Helgotan.
Description and references
Prepd by condensing one mole formaldehyde with
two moles tannin: Chemnitius, Pharm. Zentralhalle 68, 273 (1927); Schwyzer, Pharm.
Ztg. 74, 1334 (1929).
Properties
Reddish, odorless, tasteless, bulky powder, mp ≈230° with decompn. Practically insol in water; sol in alcohol, alkaline fluids.Therapeutic Category
Astringent.
Therapeutic Category (Veterinary)
Externally as astringent, antiseptic
(skin lesions and otorrhea). Has been used internally for diarrhea.
Keywords
Astringent
Status
This monograph has been retired and is no longer subject
to revision or update.