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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%

CAS-Nummer
149-91-7
Synonyme
Gallic acid

Größe Preis ($) Menge Verfügbarkeit
250g 62,62
1000g 190,55
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3,4,5-Trihydroxybenzoic acid, anhydrous, 99%

MDL
MFCD00002510
EINECS
205-749-9

Chemische Eigenschaften

Formel
C7H6O5
Molmasse
170.12
Schmelzpunkt
ca 251° dec.
Dichte
1.694
Löslichkeit
Soluble in water, alcohol, ether, glycerol and acetone. Insoluble in benzene, chloroform and petroleum ether.

Anwendungen

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.

Bemerkungen

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

Literaturverweise

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.

GHS Gefahren- und Sicherheitshinweise

Gefahrenhinweise (EU): H315-H319-H335

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

Sicherheitshinweise: 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.

Weitere Referenzen

Merck
14,4345
Beilstein
2050274
Harmonized Tariff Code
2918.29
TSCA
Yes
RTECS
LW7525000

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