Properties: Needles from abs methanol or chloroform, formerly reported as dec 235-240° (Perkin, Gunnell). Sublimes at 210° giving a stable form with mp 258-265° (dec) and an unstable form mp 225-230° (Lindpainter). One gram dissolves in 87 ml water, 3 ml boiling water, 6 ml alcohol, 100 ml ether, 10 ml glycerol, 5 ml acetone. Practically insol in benzene, chloroform, petr ether. Protect from light. LD50 in rabbits (g/kg): 5.0 orally (Dollahite).
Melting point: mp 258-265° (dec) and an unstable form mp 225-230° (Lindpainter)
Toxicity data: LD50 in rabbits (g/kg): 5.0 orally (Dollahite)
Derivative Type: Methyl ester
CAS Registry Number: 99-24-1
Additional Names: Methyl gallate; gallicin
Percent Composition: C 52.18%, H 4.38%, O 43.44%
Properties: Monoclinic prisms from methanol, often hydrated or solvated. When dry, mp 202°. Sol in hot water, alcohol, methanol, ether.
Melting point: mp 202°
Derivative Type: Propyl ester see Propyl Gallate
Use: Manuf gallic acid esters, pyrogallol, inks; as photographic developer; in tanning; in dyeing; in testing for free mineral acids, dihydroxyacetone and alkaloids. Esters as antioxidants.
Therap-Cat: Formerly as astringent, styptic.
Therap-Cat-Vet: Has been used as intestinal astringent.
Keywords: Astringent.
产品链接: 149-91-7››