半岛bd体育手机客户端 说明
分析说明
Identity (UV/VIS-Spectrum): passes test
Appearance: White to yellowish white powder
Clarity of the alkoholic solution (10?g/l ethanol): passes test
Absorption maximum λmax.(buffer pH 9.8): 551 - 554 nm
Spec. Absorptivity A 1%/1cm (λmax; 0.01?g/l; buffer pH?9.8; calculated on dried substance): 700 - 750
Transition range: pH 8.2 - pH 9.8 almost colorless - red-violet
Transition range (according to ACS): passes test
Transition interval (according Reag. Ph Eur): passes test
Loss on drying (105?°C): ≤ 1 %
基本信息
| 经验(实验)分子式 | C20H14O4 |
| 分子量 | 318.32 |
| MDL编号 | MFCD00005913 |
| EC索引号 | 201-004-7 |
半岛bd体育手机客户端 性质
| 质量水平 | 200 |
| 等级 | ACS reagent |
| agency | reag. Ph. Eur. |
| 蒸汽压 | <0.00001 Pa ( 50 ℃) |
| 缺失 | ≤1% loss on drying, 105℃ |
| visual transition interval | 8.2-9.8, colorless to red-violet |
| mp | 263.7 ℃ |
| 密度 | 1.296 g/cm3at 20 ℃ |
| 堆积密度 | 350?450 kg/m3 |
| 储存温度 | 2-30℃ |
| InChI | 1S/C20H14O4/c21-15-9-5-13(6-10-15)20(14-7-11-16(22)12-8-14)18-4-2-1-3-17(18)19(23)24-20/h1-12,21-22H |
| InChI key | KJFMBFZCATUALV-UHFFFAOYSA-N |
安全信息
| 象形图 |   |
| 警示用语： | Danger |
| 危险声明 | H315 - H341 - H350 - H361f |
| 预防措施声明 | P202 - P264 - P280 - P302 + P352 - P308 + P313 - P332 + P313 |
| 危险分类 | Carc. 1B - Muta. 2 - Repr. 2 - Skin Irrit. 2 |
| 储存分类代码 | 6.1D - Non-combustible, acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects |
| WGK | WGK 3 |
| 闪点(F) | Not applicable |
| 闪点(C) | Not applicable |
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