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Safety Information

655422

Sigma-Aldrich

QuadraPure® TU

macroporous, 400-600 μm particle size

Synonym(s):

QuadraPure® Thiourea

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About This Item

MDL number:
MFCD07785601
UNSPSC Code:
12163800
PubChem Substance ID:
329760071
NACRES:
NA.22

Quality Level

200

reaction suitability

reagent type: catalyst
reagent type: chelator

particle size

400-600 μm

General description

QuadraPure® TU is a thiourea-based metal scavenger resin that can be used to prevent metal contamination that occurs during pharmaceutical or fine chemical processing.

Application

Reaxa Technology
Metal Scavenger: Pd, Pt, Ru, Rh, Au, Ag, Cu, Hg, Pb, Cd, Ni, Co, Fe, V, Zn
QuadraPure® TU has been used to remove color from the solution due to leaching of copper species during the copper(I)-mediated 1,2,3-triazole formation via [3+2] cycloaddition of acetylenic compounds with azides. It has also been used as a modifier for carbon pastes to develop QuadraPure® TU residue functionalized resin-modified carbon paste electrode (“TUR-CPE”) for the determination of Pb(II) ions.
Other applications include the removal of metal ions like copper and palladium that leach out during continuous flow coupling reactions.

Legal Information

QuadraPure is a registered trademark of Johnson Matthey Finland Oy

Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Statements

H315,H319,H335

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

JAN Code

655422-100G:
655422-25G:
655422-5G:
655422-VAR:
655422-BULK:

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Certificates of Analysis (COA)

Lot/Batch Number
BCCG1670
BCCF9686
BCCD3549
BCCC5051
BCCB9941

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[3+ 2] Cycloaddition of acetylenes with azides to give 1, 4-disubstituted 1, 2, 3-triazoles in a modular flow reactor.
Smith CD, et al.
Organic & Biomolecular Chemistry, 5(10), 1559-1561 (2007)
Nikzad Nikbin, et al.
Organic Process Research & Development, 11, 458-462 (2007)
Paolo Tosatti et al.
The Journal of organic chemistry, 76(13), 5495-5501 (2011-05-14)
The sequential use of Cu-catalyzed asymmetric allylic alkylation, olefin cross-metathesis, and Ir-catalyzed asymmetric allylic amination allows the concise, stereodivergent synthesis of complex chiral amines with complete regiocontrol and good diastereoselectivity, exemplified by the synthesis of a pair of diastereoisomeric unnatural
Functionalised resin-modified carbon paste sensor for the voltammetric determination of Pb (II) within a wide concentration range.
Mikysek T, et al.
Electrochemical Communications, 10(2), 242-245 (2008)
Michael J. Girgis, et al.
Organic Process Research & Development, 12, 1209-1217 (2008)
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