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149-91-7 - 3,4,5-Trihydroxybenzoic acid, anhydrous, 99% - Gallic acid - B24887 - Alfa Aesar

B24887 3,4,5-Trihydroxybenzoic acid, anhydrous, 99%

Codice CAS
149-91-7
Sinonimi
Gallic acid

Dimensioni Prezzo ($) Quantità Disponibilità
250g 63,20
1000g 192,00
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3,4,5-Trihydroxybenzoic acid, anhydrous, 99%

MDL
MFCD00002510
EINECS
205-749-9

Proprietà chimiche

Formula
C7H6O5
Peso formula
170.12
Punto di fusione
ca 251° dec.
Densità
1.694
Solubilità
Soluble in water, alcohol, ether, glycerol and acetone. Insoluble in benzene, chloroform and petroleum ether.

Applicazioni

Organic acid is used as a standard for determining phenols in the Folin-Ciocalteau assay3,4,5-Trihydroxybenzoic acid is used as a cyclooxygease inhibitor substance, which is found in plants. In analytical chemistry, it is used as a standard to determine phenol content in various analytes. It acts as a starting material for the preparation of psychedelic alkaloid mescaline. Further, it is used to produce polyesters based on phloretic acid and gallic acid. In addition to this, it is used in the preparation of its esters such as methyl gallate, ethyl gallate, propyl gallate, octyl gallate and doceyl gallate.

Note

Hygroscopic. Light sensitive. Incompatible with strong oxidizing agents, strong bases, acid anhydrides, acid chlorides, metals.

Letteratura

Pisani, O.; Frey, S. D.; Simpson, A. J.; Simpson, M. J. Soil warming and nitrogen deposition alter soil organic matter composition at the molecular-level. Biogeochemistry 2015, 123 (3), 391-409.

Diamanti, J.; Francesca, B.; Franco, C.; Clara, B.; Annalisa, B.; Francesca, G.; Maurizio, B.; Bruno, M. Physico-chemical characteristics of thermally processed purée from different strawberry genotypes. J. Food Compos. Anal. 2015, 43, 106-118.

Rischio GHS e dichiarazioni precauzionali

Dichiarazioni di rischio (UE): H315-H319-H335

Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation.

Dichiarazioni precauzionali: P261-P280-P305+P351+P338-P304+P340-P362-P312-P321-P405-P403+P233-P501a

Avoid breathing dust/fume/gas/mist/vapours/spray. Wear protective gloves/protective clothing/eye protection/face protection. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. Take off contaminated clothing and wash before reuse. Call a POISON CENTER or doctor/physician if you feel unwell. Specific treatment (see label). Store locked up. Store in a well-ventilated place. Keep container tightly closed. Dispose of contents/container in accordance with local/regional/national/international regulations.

Altri riferimenti

Merck
14,4345
Beilstein
2050274
Codice tariffe armonizzato
2918.29
TSCA
Yes
RTECS
LW7525000

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