65897-46-3
中文名称
吡罗昔康杂质 B
英文名称
Desmethyl Piroxicam (Piroxicam Impurity B)
CAS
65897-46-3
分子式
C14H11N3O4S
分子量
317.32
MOL 文件
65897-46-3.mol
65897-46-3 结构式
基本信息
中文别名
吡罗昔康杂质B(EP) 标准品 英文别名
Desmethyl PiroxicamPiroxicaM IMpurity B
4-Hydroxy-N-(pyridin-2-yl)-2H-1,2-b
Desmethyl Piroxicam (Piroxicam Impurity B)
Piroxicam EP Impurity B (N-Desmethyl Piroxicam)
4-Hydroxy-N-2-pyridinyl-2H-1,2-benzothiazine-3-carboxaMide 1,1-Dioxide
2H-1,2-Benzothiazine-3-carboxamide, 4-hydroxy-N-2-pyridinyl-, 1,1-dioxide
4-hydroxy-N-(pyridin-2-yl)-2H-benzo[e][1,2]thiazine-3-carboxamide 1,1-dioxide
4-hydroxy-1,1-dioxo-N-pyridin-2-yl-2H-1λsup6sup,2-benzothiazine-3-carboxamide
Imp. B (EP):4-Hydroxy-N-(pyridin-2-yl)-2H-1,2-benzothiazine-3-carboxamide1,1-Dioxide
物理化学性质
熔点224℃ (decomposition)
密度1.611±0.06 g/cm3(Predicted)
溶解度DMSO (Slightly), Methanol (Slightly)
酸度系数(pKa)4.50±1.00(Predicted)
形态Solid
颜色Light Yellow to Yellow
主要应用pharmaceutical (small molecules)
InChI1S/C14H11N3O4S/c18-13-9-5-1-2-6-10(9)22(20,21)17-12(13)14(19)16-11-7-3-4-8-15-11/h1-8,17-18H,(H,15,16,19)
InChIKeyXRXYFCIBSPQECM-UHFFFAOYSA-N