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CAS No 149-91-7 , 3,4,5-trihydroxybenzoic acid

  • Name: 3,4,5-trihydroxybenzoic acid
  • Synonyms: gallate; tech.; 3,4,5-trihydroxy-; Gallic acid; 3,4,5-Trihydroxybenzoate; Benzoic acid;3,4,5-trihydroxybenzoic acid;3,4,5-Trihydroxybenzoic acid; GALOP; 149-91-7;
  • CAS Registry Number:
  • Transport: 25kgs
  • Melting Point: 251 ºC (DEC.)
  • Density: 1.694
  • Refractive index: 1.73
  • Water Solubility: 12 G/L COLD WATER
  • Safety Statements: R36/37/38
  • Hazard Symbols: Xi: Irritant;
  • EINECS: 205-749-9
  • Molecular Weight: 170.11954
  • InchiKey: LNTHITQWFMADLM-UHFFFAOYSA-N
  • InChI: InChI=1S/C7H6O5/c8-4-1-3(7(11)12)2-5(9)6(4)10/h1-2,8-10H,(H,11,12)
  • Risk Statements: S24/25
  • Molecular Formula: C7H6O5
  • Molecular Structure:CAS No:149-91-7 3,4,5-trihydroxybenzoic acid
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149-91-7 Gallic acid(3,4,5-Trihydroxybenzoic acid)

  • Gallic acid(3,4,5-Trihydroxybenzoic acid) CAS: 149-91-7 Spc.: European standard -93 (first grade), JIS (first grade), AP21 (1985), Top grade. "Appearance: white or white crystalline powder. Quality index: European standard -93 (first grade), JIS (fir...
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149-91-7 Natural Gallic Acid with Sample Available /Skype:ling@chembj.com

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  • Address: 496 Zhongshan Road, Wuchang District Wuhan,HubeiChina
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149-91-7 Natural Gallic Acid with Sample Available

  • Natural Gallic Acid with Sample Available Product Details Basic Info. Model NO.:CAS No: 149-91-7 Raw Material:Plants Extraction Type:Solvent Extraction Certification:ISO9001:2000, SGS Appearance:White Powder Test Method and Purity:99%HPLC Einecs:205-...
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  • China Hubei Yuancheng Saichuang Technology [Trading Company]
  • Tel: 86-27-50755968
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149-91-7 Gallic acid

  • white solid, melting point 252 °C (dec.)(lit.) best quality and low price
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149-91-7 Gallic acid

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  • China HongKong Yuancheng Tech Co.Ltd. [Manufacturer]
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149-91-7 GALLIC ACID

  • United States Bromorganics Corporation [Manufacturer]
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  • Address: Bromorganics Corporation
    P. O. Box 722
    Elk Grove Village, Illinois 60009 ,United States
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149-91-7 GALLIC ACID- CHINESE

  • United States Aceto Corp. [Manufacturer]
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149-91-7 Gallic acid

  • China Taiyuan RHF CO., ltd. [Manufacturers]
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149-91-7 2309 GALLIC ACID

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149-91-7 GALLIC ACID, ANHYDROUS

  • Canada Ring Specialty Chemicals Inc. [Manufacturer]
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References of 3,4,5-trihydroxybenzoic acid
Title: Gallic Acid
CAS Registry Number: 149-91-7
CAS Name: 3,4,5-Trihydroxybenzoic acid
Molecular Formula: C7H6O5
Molecular Weight: 170.12
Percent Composition: C 49.42%, H 3.55%, O 47.02%
Literature References: Obtained by alkaline or acid hydrolysis of the tannins from nutgalls; also by enzymatic hydrolysis using spent broths from Penicillium glaucum or Aspergillus niger which contain tannase: A. G. Perkin, O. Gunnell, J. Chem. Soc. 69, 1303 (1896); Hsias, Huang Hai No. 7, 51 (1946), C.A. 42, 3901i (1948); Cochrane, Econ. Bot. 2, 145 (1948); Toth, Henster, Acta Chim. Acad. Sci. Hung. 2, 209 (1952). Prepn from tannin containing materials: Krueger et al., US 2723992 (1955 to Mallinckrodt). Synthesis from aliphatic materials: Shipchandler et al., J. Chem. Soc. Perkin Trans. 1 1975, 1400. Biosynthesis: Haslam et al., J. Chem. Soc. 1961, 1854. Study of polymorphic forms: E. Lindpainter, Mikrochemie 27, 21 (1939). Toxicity studies: J. W. Dollahite et al., Am. J. Vet. Res. 23, 1264 (1962).
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
Synonyms: Methyl gallate; gallicin
Molecular Formula: C8H8O5
Molecular Weight: 184.15
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.