This product should be stored at room temperature, protected from light and moisture. The solution stability has not been determined. Please note that this product is hygroscopic and light sensitive.
398225
Gallic acid monohydrate
ACS reagent grade, ≥98.0%, powder
Synonym(s):
3,4,5-Trihydroxybenzoic acid monohydrate
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| Size/SKU | Availability | Price |
|---|---|---|
100 g | Available to ship TODAY | $116.00 |
500 g | Available to ship TODAY | $153.00 |
About This Item
Linear Formula:
(HO)3C6H2CO2H · H2O
CAS Number:
Molecular Weight:
188.13
MDL number:
UNSPSC Code:
12352100
PubChem Substance ID:
NACRES:
NA.21
EC Number:
205-749-9
Beilstein/REAXYS Number:
2050274
Assay:
≥98.0%
Form:
powder
$116.00
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Product Name
Gallic acid monohydrate, ACS reagent, ≥98.0%
grade
ACS reagent
Quality Segment
assay
≥98.0%
form
powder
impurities
≤0.01% insolubles
ign. residue
≤0.005%
mp
252 °C (dec.) (lit.)
anion traces
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
InChI key
LNTHITQWFMADLM-UHFFFAOYSA-M
General description
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. Gallic acid is of significant importance because of its antioxidant and anti-cancer activities. Infrared and Raman spectral studies of gallic acid have been reported.
Application
Gallic acid monohydrate may be used as a standard in the photometric determination of total phenolics content by Folin-Ciocalteu method.
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This Item | |
|---|---|
| description ACS reagent, ≥98.0% | description ≥99% (HPLC) |
| assay ≥98.0% | assay ≥99% (HPLC) |
| Quality Level 200 | Quality Level 100 |
| form powder | form solid |
| mp 252 °C (dec.) (lit.) | mp 252 °C (dec.) (lit.) |
| grade ACS reagent | grade - |
| anion traces sulfate (SO42-): ≤0.02% | anion traces chloride (Cl-): ≤200 mg/kg, sulfate (SO42-): ≤100 mg/kg |
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Storage Class
11 - Combustible Solids
WGK
WGK 2
Flash Point (°F)
482.0 °F - closed cup
Flash Point (°C)
250 °C - closed cup
PPE (personal protective equipment)
dust mask type N95 (US), Eyeshields, Gloves
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What is the storage temperature of gallic acid monohydrate ACS reagent (>98%) after opening?
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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/418/501/product-dating-information-06-25-mk.pdfHelpful?
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How is shipping temperature determined? And how is it related to the product storage temperature?
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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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