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Merck

398225

Sigma-Aldrich

没食子酸 一水合物

ACS reagent, ≥98.0%

别名:

3,4,5-三羟基苯甲酸

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100 G
$134.00
500 G
$182.00

$134.00


国内现货,预计发货时间2025年4月08日详情


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100 G
$134.00
500 G
$182.00

About This Item

线性分子式:
(HO)3C6H2CO2H · H2O
CAS号:
分子量:
188.13
Beilstein:
2050274
EC 号:
MDL编号:
UNSPSC代码:
12352100
PubChem化学物质编号:
NACRES:
NA.21

$134.00


国内现货,预计发货时间2025年4月08日详情


获取大包装报价

等级

ACS reagent

质量水平

方案

≥98.0%

表单

powder

杂质

≤0.01% insolubles

灼烧残渣

≤0.005%

mp

252 °C (dec.) (lit.)

痕量阴离子

sulfate (SO42-): ≤0.02%

SMILES字符串

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

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一般描述

没食子酸一水合物是一种酚酸。对其晶体结构的研究表明,它是带有两个分子内氢键和五个分子间氢键的平面结构。[1]没食子酸具有重要的抗氧化和抗癌活性。[2]本文报道了没食子酸的红外和拉曼光谱研究。[3]

应用

没食子酸一水合物可用作 Folin-Ciocalteu 光度法测定总酚含量的标准品。[4]

储存分类代码

11 - Combustible Solids

WGK

WGK 2

闪点(°F)

482.0 °F - closed cup

闪点(°C)

250 °C - closed cup

个人防护装备

dust mask type N95 (US), Eyeshields, Gloves


历史批次信息供参考:

分析证书(COA)

Lot/Batch Number

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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)
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)
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)
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)
Claudriana Locatelli et al.
Bioorganic & medicinal chemistry, 16(7), 3791-3799 (2008-02-26)
Gallic acid and gallates with the same number of hydroxyl groups and varying the length of the side carbon chain, with respective lipophilicity being defined through the ClogP values, were examined for their ability to induce apoptosis (through the DNA

Questions

1–2 of 2 Questions  
  1. How can I determine the shelf life / expiration / retest date of this product?

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

    1 answer
    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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