N-Methylpyrrolidone diethyl acetal 826-41-5 N-methylpyrrolidone dimethyl acetal 39650-82-3 Chemsrc provides N-Methylpyrrolidone(CAS#:872-50-4) MSDS, density, melting point, boiling point, structure, formula, molecular weight etc. Articles of N-Methylpyrrolidone are included as well.>> amp ver...
【简答题】1-12. n-甲基吡咯bp为81度,而哌啶bp为106度,试解释为何二者沸点相差近25度?四氢吡喃bp为88度,而环戊醇bp为141度,试解释为何二者沸点相差近53度?试解释结构相似时,为何含o异构体沸点比含n异构体的沸点更高?n-methylpyrrolidine has a boiling point of 81°c, and piperidine has a boiling ...
comprises the steps of reacting N-methylpyrrolidone with hydrogen over a copper chromite catalyst at a moderate temperature and a pressure of 1000 psig to 5000 psig and thereafter isolating the N-methylpyrrolidine by extraction with an aliphatic hydrocarbon solvent having a boiling point less than ...
N-Methyl-2-pyrrolidone can be reduced to 1-methyl pyrrolidine with borohydride. Treatment with chlorinating agents results in amide formation,an intermediate which can undergo further substitution, while treatment with amyl nitrate yields the nitrate. Olefins can be added to the 3 position by ...
9.5.1 Methyl Bromide Methyl bromide is a colorless, nonflammable, low boiling point chemical with high vapor pressure (227 kPa at 25°C) and reasonable water solubility (13.4 g/l) (Yates et al., 1996). It is often applied by shank injection as a liquid (from pressurized cylinder), which...
N-Methyl-2-ketopyrrolidine; N-Methyl-γ-butyrolactam; N-Methylbutyrolactam; N-Methylpyrrolidone; NMP; NSC 4594; Pharmasolve; Pyrol M; SL 1332; N-methyl-2-pyrrolidone CAS NO: 872-50-4 Molecular Formula: C5H9NO Molecular Weight: 99.13 Melting Po...
Boiling point218-222 °C(lit.) density0.985 g/mL at 25 °C(lit.) vapor density4.4 (vs air) vapor pressure0.05 mm Hg ( 20 °C) refractive indexn20/D1.500 Fp200 °F storage temp.Store below +30°C. solubility>1000g/l formLiquid ...
MW:: 115.17 Boiling Point: 164.8 °C at 760 mmHg Cas NO.: 99494-01-6 Name: N-Methyl-D-prolinol contact: jessie Purity: 99% Brand Name: coreychem Refractive index: n20/D4.469 MF:: C6H13NO Aliase: (R)-2-Hydroxymethyl-1-methylpyrrolidinePackaging...
(1-ethanoyl-2,2,6,6-pentamethylpiperidin-4-yl)pyrrolidine-2,5-dione 3-Dodecyl-1-(1-ethanoyl-2,2,6,6-tetramethylpiperidin-4-yl)pyrrolidin-2,5-dione Hostavin 3058 LABOTEST-BB LT00159289 N-(1-ACETYL-2,2,6,6-TETRAMETHYL-4-PIPERIDINYL)-2-DODECYLSUCCINIMIDE N-(1-Acetyl-2,2,6,6-...
(the melting point of (S)—N-(3-(6-isopropoxypyridin-3-yl)-1H-indazol-5-yl)-1-(2-(4-(4-(1-methyl-1H-1,2,4-triazol-3-yl)phenyl)-3,6-dihydropyridin-1(2H)-yl)-2-oxoet hyl)-3-(methylthio)pyrrolidine-3-carboxamide hydrate Form 2 is 133° C.) also indicated that (S)—N...