Реагент Жирара T
Реагент Жирара T химические свойства, назначение, производство
Химические свойства
white to almost white crystalline powder
Использование
Girard''s Reagent T is a derivatizing agent used to generate permanent cationic charge at the reducing ends of neutral oligosaccharides for easier quantification in matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS).
Методы очистки
It is purified by crystallisation from absolute EtOH (slight decomposition) until it has only a slight odour. Store it in well-stoppered containers because it is very hygroscopic. It is very soluble in H2O, AcOH and glycerol but slightly soluble in EtOH (0.66%). It forms water-soluble hydrazones with carbonyl compounds. [Beilstein 4 III 1133.]
Реагент Жирара T препаратная продукция и сырье
сырьё
Триметиламин
Этил хлорацета
Ethanaminium,2-[2-[(4-hydroxy-3-methoxyphenyl)methylene]hydrazinyl]-N,N,N-trimethyl-2-oxo-,chloride (1:1)
Ethanaminium,2-[2-[(4-chlorophenyl)methylene]hydrazinyl]-N,N,N-trimethyl-2-oxo-, chloride(1:1)
Ethanaminium,N,N,N-trimethyl-2-oxo-2-[2-(phenylmethylene)hydrazinyl]-, chloride (1:1)
Ethanaminium,N,N,N-trimethyl-2-[2-(1-naphthalenylmethylene)hydrazinyl]-2-oxo-, chloride(1:1)
[(4-methoxyphenyl)methylideneamino]carbamoylmethyl-trimethyl-azanium
Бифенил-4-карбоксальдегида
БЕНЗАЛЬДЕГИД
P-анисовый альдегид
4-фторбензальдегида
4-бромбензальдегид
2-нафтальдегида
1-нафтальдегида
4-Нитробензальдегид
4-хлорбензальдегида
P-толуальдегид
препарат
Реагент Жирара T поставщик
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