


| 货号 | 包装规格 | 操作 |
|---|---|---|
| 8.00653.0005 | 5 g | |
| 8.00653.0050 | 50 g | |
| 8.00653.0250 | 250 g | |
| 8.00653.1000 | 1 kg |
(升华)用于合成
Selenium dioxide (SeO2) is mainly used to oxidize the activated carbon-bearing positions (α-methylene carbon atoms), particularly at allylic or propargylic sites. The more substituted end of the double bond undergoes oxidation.PMID 26046320
It can also be used as an oxidizing reagent to synthesize:
Amides by oxidative amidation of aldehydes with amines. Tropone from cycloheptatriene in the presence of potassium dihydrogen phosphate.Acetyltetrahydrobenzofurans by oxidation of conjugated dienones. 9-hydroxy-undec-10-ynoate from methyl undec-10-ynoate.PMID 9358439
含量测定(碘量法):≥ 98.0%
| 英文名称 | Selenium dioxide |
| CAS 号 | 7446-08-4 |
| 线性分子式 | SeO2 |
| 经验分子式 | O2Se |
| 分子量 | 110.96 |
| MDL 号 | MFCD00003562 |
| UNSPSC | 12352303 |
| NACRES | NA.22 |
| 反应适用性 | 试剂类型:氧化剂 |
| pH | 2(20 ℃,10 g/L水溶液) |
| 熔点 | 340 °C |
| 溶解性 | 1353 g/L |
| 密度 | 3.95 g/cm3(20 ° C时) |
| 储存温度 | 2-30°C |
| SMILES字符串 | [Se](=O)=O |
| InChI | 1S/O2Se/c1 - 3 - 2 |
| InChI key | JPJALAQPGMAKDF-UHFFFAOYSA-N |
| 蒸气压 | <1帕(20 °C) |
| 形态 | 晶体 |
| 效价 | 68.1 mg/kg LD50,经口给药(大鼠) |
| 质量等级 | 200 |
| 包装规格(货号 8.00653.0005) | 5 g |
| 包装规格(货号 8.00653.0050) | 50 g |
| 包装规格(货号 8.00653.0250) | 250 g |
| 包装规格(货号 8.00653.1000) | 1 kg |