24683-21-4
中文名稱
吡羅昔康雜質(zhì) H
英文名稱
Ethyl 4-Hydroxy-2H-1,2-benzothiazine-3-carboxylate 1,1-Dioxide(Piroxicam Impurity H)
CAS
24683-21-4
分子式
C11H11NO5S
分子量
269.27
MOL 文件
24683-21-4.mol
24683-21-4 結(jié)構(gòu)式
基本信息
中文別名
吡羅昔康雜質(zhì)H (EP)吡羅昔康雜質(zhì)H(EP) 標(biāo)準(zhǔn)品
4-羥基-2H-1,2-苯并噻嗪-3-羧酸乙酯1,1-二氧化物
4-羥基-2H-苯并[E][1,2]噻嗪-3-羧酸乙酯1,1-二氧化物
英文別名
Piroxicam Impurity HEthyl 4-Hydroxy-2H-1,2-benzothiazin
4-Hydroxy-2H-1,2-benzothiazine-3-carboxylic Acid
ethyl 4-hydroxy-2H-benzo[e][1,2]thiazine-3-carboxylate 1,1-dioxide
ethyl 4-hydroxy-1,1-dioxo-2H-1lambda6,2-benzothiazin e-3-carboxylate
4-Hydroxy-2H-1,2-benzothiazine-3-carboxylic acid ethyl ester 1,1-dioxide
2H-1,2-Benzothiazine-3-carboxylic acid, 4-hydroxy-, ethyl ester, 1,1-dioxide
Ethyl 4-Hydroxy-2H-1,2-benzothiazine-3-carboxylate 1,1-Dioxide(Piroxicam Impurity H)
Ethyl 4-Hydroxy-2H-1,2-benzothiazine-3-carboxylate 1,1-Dioxide_x000b_(Piroxicam Impurity H)
物理化學(xué)性質(zhì)
熔點(diǎn)140℃ (acetone )
沸點(diǎn)453.0±55.0 °C(Predicted)
密度1.502±0.06 g/cm3(Predicted)
儲(chǔ)存條件Refrigerator, under inert atmosphere
溶解度可溶于氯仿(少許)、甲醇(少許)
酸度系數(shù)(pKa)4.50±1.00(Predicted)
形態(tài)固體
顏色白色至灰白色