LCMS
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Trifluoroacetic Acid - Product Specification
1997|Merck|Brožury a specifikace
Trifluoroacetic Acid Product Specification Trifluoroacetic acid (TFA) is a very versatile reagent. Some of the more popular uses for TFA are as a silyl catalyst when derivatizing carbohydrates, as a reagent for purifying large peptides, as an ion pair reagent,…
Klíčová slova
catalyst, catalysttfa, tfaglc, glcsilyl, silylpair, pairhandbook, handbookstorage, storagereagent, reagentbfd, bfdmoisture, moisturemicroreaction, microreactionhmds, hmdsunopened, unopenedprocedures, proceduressyrups
N-t-Butyldimethylsilylimidazole Product Specification N-t-Butyldimethylsilylimidazole (TBDMSIM) is formed by reacting butyldimethylchlorosilane and imidazole (1:2). Although TBDMSIM is not widely used, the t-butyldimethylsilyl (TBDMS) derivatives it forms enhance thermal stability and increase the inertness of the analyte(s). A weak silylating reagent, TBDMSIM…
Klíčová slova
derivatives, derivativestbdms, tbdmssilyl, silylnch, nchbutyldimethylsilylimidazole, butyldimethylsilylimidazolestorage, storagereagent, reagentsilylating, silylatinggroup, groupstability, stabilityhandbook, handbookleaving, leavingsilicon, siliconethers, ethersbff
TMSI + Pyridine - Product Specification
1997|Merck|Brožury a specifikace
TMSI+Pyridine Product Specification TMSI (N-trimethylsilylimidazole) is the strongest reagent for hydroxyls. It reacts quickly and smoothly with hindered and unhindered hydroxyl and carboxyl groups. TMSI+Pyridine is useful for derivatizing wet sugar samples, hindered hydroxyl groups in steroids and, in conjunction…
Klíčová slova
derivatives, derivativessilyl, silylsilylating, silylatingnch, nchderivatization, derivatizationtms, tmstmsi, tmsistorage, storagereagent, reagentsilylation, silylationhandbook, handbookawr, awrreaction, reactionprocedure, procedurereactions
TMAH - Product Specification
1997|Merck|Brožury a specifikace
TMAH Product Specification TMAH (trimethylanilinium hydroxide),* 0.2M in methanol, is an esterification reagent used to form methyl derivatives, especially of molecules having replaceable protons attached to nitrogen (N-methyl derivatives). It is particularly useful for methylating barbiturates, sedatives, xanthine bases, phenolic…
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tmah, tmahesterification, esterificationhandbook, handbookbje, bjecontainer, containerscavengers, scavengersacid, acidstorage, storagereagent, reagentdrugs, drugsbooks, booksabused, abusedtransesterification, transesterificationventilated, ventilatedmsds
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