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2,3,5-Triphenyltetrazolium chloride Cas: 298-96-4

Short Description:

Catalog Number: XD90516
Cas: 298-96-4
Molecular Formula: C19H15N4·Cl
Molecular Weight: 334.80
Availability: In Stock
Price:  
Prepack: 5g USD10
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Product Detail

Product Tags

Catalog Number XD90516
Product Name 2,3,5-Triphenyltetrazolium chloride

CAS

298-96-4

Molecular Formula

C19H15N4·Cl

Molecular Weight

334.80
Storage Details 2 to 8 °C
Harmonized Tariff Code 29339980

 

Product Specification

Appearance

Off-white/pale yellow crystalline powder

Assay

Min. 99%

Melting Point

235 - 245 Deg C

Loss on Drying

<3.0%

Water Content

0.5% Max

Residue on Ignition

Max. 0.5%

Solubility in EtoH

Pass

Solubility in Ethanol

Clear and complete

 

The consumption of polyphenols has frequently been associated with low incidence of degenerative diseases. Most of these natural antioxidants come from fruits, vegetables, spices, grains and herbs. For this reason, there has been increasing interest in identifying plant extract compounds. Polymeric tannins and monomeric flavonoids, such as catechin and epicatechin, in pine bark and green tea extracts could be responsible for the higher antioxidant activities of these extracts. The aim of the present study was to characterize the phenolic compounds in pine bark and green tea concentrated extracts using high-performance liquid chromatography coupled to electrospray ionization mass spectrometry (HPLC-ESI-QTOF-MS). A total of 37 and 35 compounds from pine bark and green tea extracts, respectively, were identified as belonging to various structural classes, mainly flavan-3-ol and its derivatives (including procyanidins). The antioxidant capacity of both extracts was evaluated by three compl ementary antioxidant activity methods: Trolox equivalent antioxidant capacity (TEAC), ferric reducing antioxidant power (FRAP) and oxygen radical absorbance capacity (ORAC). Higher antioxidant activity values by each method were obtained. In addition, total polyphenol and flavan-3-ol contents, which were determined by Folin-Ciocalteu and vanillin assays, respectively, exhibited higher amounts of gallic acid and (+)-catechin equivalents.


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    2,3,5-Triphenyltetrazolium chloride Cas: 298-96-4