Molecular Formula | C22 H25 N3 O4 |
Molar Mass | 395.45 |
Density | 1.2414 (rough estimate) |
Melting Point | 238.1-239.5° (Tominaga); mp 238.1-239.8° (Shimizu) |
Boling Point | 519.41°C (rough estimate) |
pKa | 2.86(at 25℃) |
Storage Condition | 2-8℃ |
Refractive Index | 1.6500 (estimate) |
Physical and Chemical Properties | Colorless granular crystals from ethanol-chloroform with a melting point of 238.1-239.5 ℃; There are also odorless and tasteless light yellow crystalline powder with a melting point of 238.1-239.8 ℃. UV maximum absorption (methanol, ethanol, chloroform):271nm(ε25100,25200,23000,C = 10 μg/m1). Solubility%(25 ℃): glacial acetic acid 18.68, chloroform 14.19, benzyl alcohol 5.913, N-methyl-2-pyrrolidone 3.407, dimethyl sulfoxide 2.509, sulfolane 1.229, dimethylformamide 1.179, dioxane 0.1653, methanol 0.1151, acetone 0.06389, ethanol 0.04005, water 0.002086. PKa 2.86. |
1mg | 5mg | 10mg | |
---|---|---|---|
1 mM | 2.529 ml | 12.644 ml | 25.288 ml |
5 mM | 0.506 ml | 2.529 ml | 5.058 ml |
10 mM | 0.253 ml | 1.264 ml | 2.529 ml |
5 mM | 0.051 ml | 0.253 ml | 0.506 ml |