protostephanine
|
|
protostephanine 속성
- 녹는점
- 84-86° (Pecherer); mp 75° (Kondo)
- 끓는 점
- 518.5±50.0 °C(Predicted)
- 밀도
- 1.095±0.06 g/cm3(Predicted)
- 산도 계수 (pKa)
- 8.75±0.20(Predicted)
안전
protostephanine C화학적 특성, 용도, 생산
개요
A Stephania alkaloid, this base is found in S. japonica Miers. It forms colourless prisms from MeOH which contain solvent of crystallization, m.p. 75°C. The solvent may be removed under vacuum when the dry alkaloid has a higher melting point of 90-S°C. It is optically inactive and yields crystalline saits, e.g. the hydrochloride, m.p. 150°C (dec.); platinichloride, orange prisms, m.p. 223°C (dec.); methiodide, m.p. 220-loC and the methomethylsulphate, m.p. 235°C after sintering at 227°C. The structure has recently been confirmed by a synthesis which follows a route related to the biosynthetic pathway.참고 문헌
Kondo, Watanabe., J. Pharrn. Soc., Japan, 58,46 (1938)Kondo, Takeda., Chern. Abstr., 49, 1076 (1955)
Synthesis: Battersby et al., Chern. Cornrnun., 20, 1214 (1968)
protostephanine 준비 용품 및 원자재
원자재
준비 용품
protostephanine 공급 업체
글로벌( 0)공급 업체
| 공급자 | 전화 | 이메일 | 국가 | 제품 수 | 이점 |
|---|