99-11-6O=C(O)c1cc(O)[nH]c(=O)c1CSGQJHQYWJLPKY-UHFFFAOYSA-NCITRAZINIC ACID is a member of pyridines and an aromatic carboxylic acid.
安全情報は参考情報です。供給元の安全データシート(SDS)、適用法令、専門家による評価に代わるものではありません。
Warning
H315 (100%): Causes skin irritation [Warning Skin corrosion/irritation]
P261, P264, P264+P265, P271, P280, P302+P352, P304+P340, P305+P351+P338, P319, P321, P332+P317, P337+P317, P362+P364, P403+P233, P405, and P501 (click each P-code to see the statement)
Aggregated GHS information provided per 49 reports by companies from 7 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
Chemical: 4-Pyridinecarboxylic acid, 1,2-dihydro-6-hydroxy-2-oxo-
4-Pyridinecarboxylic acid, 1,2-dihydro-6-hydroxy-2-oxo-: Does not have an individual approval but may be used under an appropriate group standard
用途有機合成原料。
使用2,6-Dihydroxypyridine-4-carboxylic acid (citrazinic acid) was used to prepare 2,6-dibromo-4-(hexoxymethyl)pyridine. It was also used to synthesize the derivatives of oxazinones and pyrimidinones.
純化方法The acid is normally a yellow powder with a greenish shade, but is white when ultra pure and turns blue on long standing. It is insoluble in H2O but slightly soluble in hot HCl and soluble in alkali or carbonate solutions. It is purified by precipitation from alkaline solutions with dilute HCl, and dried in a vacuum over P2O5. The ethyl ester has m 232o (evacuated tube) and a pKa of 4.81 in MeOCH2CH2OH [IR: Pitha Coll Czech Chem Comm 28 1408 1963]. [Beilstein 22/7 V 24.]
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読み込み中…
99-11-6DTXSID3059185CHEMBL2048371CHEBI:184700化学的特性yellow powder