Lead Ring Weight
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Vinyl-Coated Lead Rings
Argos Technologies…laboratory containers! Argos Technologies® lead ring weights are ideal for stabilizing glassware and laboratory containers during water immersion. The vinyl coating prevents scratching on labware or the benchtop. The "C" shaped rings have some flexibility for a more customized…
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Scienceware® Lead Ring Holder
SP Bel-ArtSpace saving rack Holds 5-8 rings 7.5” D x 6.75”H Autoclavable Simple rack for organizing and storing with minimum space requirements. Holds rings with a minimum I.D. of 0.7”. Circular base is 7.5” diameter and 6.75” high.
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Closed Lead Rings
SP Bel-ArtProtect and stabilize expensive glassware with these Vikem® vinyl coated lead rings. Stabilize glassware immersed in water baths; reduces floating, breakage and chemical spills Bright red Vikem® vinyl coating Chemical-resistant Will not scratch flasks Available in five…
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Lead Rings
Heathrow ScientificUse rings to stabilize glassware and plasticware on shakers or immersed in water baths. Vinyl-coated lead rings will not mark or scratch bench tops or labware.
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Scienceware® C-Shaped Lead Rings
SP Bel-Art…by pulling on end to expand ring id Vikem ® vinyl coating protects glassware Rings fit neatly around the neck of filtering flasks with side-arm tubing connections. No need to disconnect the tubing and possibly compromise the process. The open ring, made of lead and covered with vinyl is…
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These lead weights can be coiled into a helix, spiral, cone or any irregular shape to stabilize vessels in a water bath. Flexible; versatile Coil around flasks, thread through handles or loop around bottle necks Coated with chemical resistant red Vikem® vinyl to protect glassware …
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Scienceware® C-Shaped Lead Rings
SP Bel-Art…pulling on end to expand ring id Vikem ® vinyl coating protects glassware Rings fit neatly around the neck of filtering flasks with side-arm tubing connections. No need to disconnect the tubing and possibly compromise the process. The open ring, made of lead and covered with vinyl…
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Weighted Holders
SP Bel-Art… Added security and accessibility For beakers and flasks Weighted holders allow beakers or flasks to be secured and placed into a water bath with full access to the vessel opening. The Vikem® vinyl coated lead ring has been fitted with a stainless steel gripper. Four prongs firmly…
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Scienceware® Ergopet® Powered Pipettors
SP Bel-Art…and for additional stability a Vikem Vinyl Coated Lead Ring can be added to the base of the stand. The rugged blue ABS Ergopet Pipettor Weighted Base stabilizes the Ergopet Pipettors so they stand upright on a flat surface with ease. The weighted base can only be used with Ergopet Powered and…
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ALDRICH Ferrocene, 98%
MilliporeSigma…cyclopentadienes and cyclopentanes; the derived ferrocenium salts find use as mild oxidants; replacement of one ring by arenes yields cationic complexes which undergo nucleophilic addition and substitution at the arene ring, leading to substituted arenes. Packaging: 5, 100, 500 g in glass bottle
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Fmoc-(R)-2-(7-octenyl)Ala-OH,
MilliporeSigma…olefinic side chain, the two can be 'stapled' via a ring closing metathesis reaction with Grubb's catalyst (product # 579726). The resulting stapled peptide macrocycle has been shown to stabilize the alpha-helical structure of peptides, which can lead to favorable biological characteristics such as…
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…[CH3(CH2)3]3SnH Formula Weight: 291.06 CAS No.: 688-73-3 UN Number: UN1993 Purity: 97% Density: 1.082g/mLat 25°C(lit.) Application: Radical promoted intramolecular cyclization leading to isoxazolo-benzaulene ring system. Vinyl tin…
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Tributyltin hydride, contains 0.05% BHT as stabilizer, 97%
MilliporeSigma… 2-8C Beilstein Registry Number: 3587329 UNSPSC Code: 12352000 Application: Radical promoted intramolecular cyclization leading to isoxazolo-benzaulene ring system. Vinyl tin fragment used in a synthesis of (+)-panepophenanthrin via biomimetic Diels-Alder dimerization. Application: …
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Glutaminase Inhibitor 968 >=98% (HPLC)
MilliporeSigma…glutamine metabolism in macrophage activation. Biochem Physiol Actions: Variation in the 3-bromo-4-(dimethylamino)phenyl ring of glutaminase inhibitor 968, leads to loss of its inhibitory activity. Glutaminase catalysed glutamine metabolism maintains intracellular pH of cancer cells. Inhibition…
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Cyclopropylamine, 0.98
MilliporeSigma…cytochrome P450 enzymes by a mechanism involving initial one-electron oxidation at nitrogen followed by scission of the cyclopropane ring leading to covalent modification of the enzyme. It is a mechanism-based inhibitor of quinoprotein methylamine dehydrogenase from Paracoccus denitrificans.
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Allyl chloroformate, 0.97
MilliporeSigmaCAS Number: 2937-50-0 Formula: C4H5ClO2 Formula Weight: 120.53 Linear Formula: ClCOOCH2CH=CH2 MDL No.: MFCD00000648 Purity: 0.97 Boiling Point: ~27 C/11 mmHg(lit.) Density: 1.134 g/mL at 20 C(lit.) Refractive Index: n20/D 1.422(lit.) Storage: -20C Beilstein Registry…
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GreenCat iPr >=95%
MilliporeSigma…good for CM (cross metathesis) with electron deficient partners.The catalyst is also very good for RCM (ring closing metathesis) with sterically non-demanding substrates leading to small/medium rings. Note: GreenCat is suitable for reaction in "green solvents" without degassing and drying. Legal…
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…[1,1′-Bis(diphenylphosphino)ferrocene]dichloropalladium(II) (1:1) Formula: C35H30Cl4FeP2Pd Formula Weight: 816.64 CAS No.: 95464-05-4 Application: Application Guide for Palladium Catalyzed Cross-Coupling Reactions Analysis Note: …
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UltraCat >=95%
MilliporeSigma…and excellent for ethenolysis. The catalyst is also very good for mRCM (macrocyclic ring-closing metathesis) and RCM (ring closing metathesis) leading to small/medium rings. Reactions can be run at 40 to 85 C. The following reaction solvents are compatible: toluene, ethyl acetate, dimethylcarbonate,…
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… Ability to replace either probe or cable without replacing the entire assembly Pressure compensation, temperature compensation, built-in weight, long-life, polarographic membrane-covered oxygen sensor of established design, protective sensor guard and durable, molded, plastic construction…
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KB02-SLF >=95%
MilliporeSigma…Electrophilic PROTAC(R); Heterobifunctional conjugate for E3 ubiquitin ligase discovery Molecular Formula: C50H65ClN4O12 Molecular Weight: 949.52 Linear Structural Formula: C50H65ClN4O12 Purity: >=95% Storage: -20C Application: KB02-SLF is an electrophilic PROTAC…
