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Merck

398225

Sigma-Aldrich

Gallussäure Monohydrat

ACS reagent, ≥98.0%

Synonym(e):

3,4,5-Trihydroxy-benzoesäure

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100 G
81,40 €
500 G
97,80 €

81,40 €


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100 G
81,40 €
500 G
97,80 €

About This Item

Lineare Formel:
(HO)3C6H2CO2H · H2O
CAS-Nummer:
Molekulargewicht:
188.13
Beilstein:
2050274
EG-Nummer:
MDL-Nummer:
UNSPSC-Code:
12352100
PubChem Substanz-ID:
NACRES:
NA.21
Form:
powder
Assay:
≥98.0%

81,40 €


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Qualität

ACS reagent

Qualitätsniveau

Assay

≥98.0%

Form

powder

Verunreinigungen

≤0.01% insolubles

Glührückstand

≤0.005%

mp (Schmelzpunkt)

252 °C (dec.) (lit.)

Anionenspuren

sulfate (SO42-): ≤0.02%

SMILES String

OC(=O)c1cc(O)c(O)c(O)c1

InChI

1S/C7H6O5/c8-4-1-3(7(11)12)2-5(9)6(4)10/h1-2,8-10H,(H,11,12)/p-1

InChIKey

LNTHITQWFMADLM-UHFFFAOYSA-M

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Allgemeine Beschreibung

Gallic acid monohydrate is a phenolic acid. A study of its crystalline structure reveals that it is planar with two intramolecular hydrogen bonds and five intermolecular hydrogen bonds.[1] Gallic acid is of significant importance because of its antioxidant and anti-cancer activities.[2] Infrared and Raman spectral studies of gallic acid have been reported.[3]

Anwendung

Gallic acid monohydrate may be used as a standard in the photometric determination of total phenolics content by Folin-Ciocalteu method.[4]

Lagerklassenschlüssel

11 - Combustible Solids

WGK

WGK 2

Flammpunkt (°F)

482.0 °F - closed cup

Flammpunkt (°C)

250 °C - closed cup

Persönliche Schutzausrüstung

dust mask type N95 (US), Eyeshields, Gloves


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Kunden haben sich ebenfalls angesehen

Gallic acid: a versatile antioxidant with promising therapeutic and industrial applications.
Badhani B, et al.
Royal Society of Chemistry Advances, 5(35), 27540-27557 (2015)
Vibrational spectroscopic study on the quantum chemical model and the X-ray structure of gallic acid, solvent effect on the structure and spectra.
Billes F, et al.
Vibrational Spectroscopy, 43(1), 193-202 (2007)
Antioxidant properties and total phenolics content of green and black tea under different brewing conditions.
Liebert M, et al.
European Food Research and Technology, 208(3), 217-220 (1999)
A third monoclinic polymorph of 3, 4, 5-trihydroxybenzoic acid monohydrate.
Demirtas G, et al.
Acta Crystallographica Section E, Structure Reports Online, 67(6), o1509-o1510 (2011)
Ulyana Muñoz Acuña et al.
Journal of natural products, 73(11), 1775-1779 (2010-10-30)
Two new polyisoprenylated benzophenones, 32-hydroxy-ent-guttiferone M (1) and 6-epi-guttiferone J (2), along with seven known compounds, 6-epi-clusianone (3), guttiferone A (4), xanthochymol (5), guttiferone E (6), isoxanthochymol (7), (+)-volkensiflavone (8), and (+)-morelloflavone (9), were identified from the seeds and rinds

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  1. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 Antwort
    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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  2. How can I determine the shelf life / expiration / retest date of this product?

    1 Antwort
    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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