1-Chloromethyl-4-fluoro-1,4-diazoniabicyclo[2.2.2]octane bis(tetrafluoroborate) or Selectfluor, a trademark of Air Products and Chemicals, is a reagent in chemistry that is used as a fluorine donor. This compound is a derivative of the heterocycle DABCO . This colourless salt was first described in 1992 and has since been commercialized for use in organofluorine chemistry for electrophilic fluorination.

CAS：140681-55-6
中文别名：1-氯甲基-4-氟-1,4-二;1-氯甲基-4-氟-1,4-二叠氮双环[2.2.2]辛烷双四氟硼酸盐;选择氟;1-氯甲基-4-氟-1,4-重氮化二环2.2.2辛烷双(四氟硼酸盐);N-氟-N\'-(氯甲基)三乙二胺双(四氟硼酸盐);1-氯甲基-4-氟-1,4-重氮化双环[2.2.2]辛烷二(四氟硼酸盐);
英文别名：1-Chloromethyl-4-Fluoro-1,4-Diazo;1-(Chloromethyl)-4-fluoro-1,4-diazoniabicyclo[2.2.2]octane Bis(tetrafluoroborate);1-Chloromethyl-4-fluoro-1,4-diazoniabicyclo[2.2.2]octane Bis(tetrafluoroborate);N-Fluoro-N\'-(chloromethyl)triethylenediamine Bis(tetrafluoroborate);1-(chloromethyl)-4-fluoro-1,4-diazoniabicyclo[2.2.2]octane,ditetrafluoroborate;
分子式：C7H14B2ClF9N2
分子量：354.26
精确质量：354.089
Psa：0.0
Logp：3.2456

BRN号：5368649
PubChem号：24867509
MDL号：MFCD00142607
EINECS号：414-380-4

外观与性状：白色粉末
熔点：260°C(lit.)
水溶解性：soluble
储存条件：2-8ºC

安全说明：S26-S36/37/39
WGK Germany：2
危险类别码：R22; R36/37/38; R41
危险品运输编码：UN 3088 4.2/PG 2
海关编码：2933990090
危险类别：8
包装等级：II
危险品标志：Xn
信号词：Danger
危险性描述：H252; H302; H317; H318; H412
危险性防范说明：P235 + P410; P273; P280; P305 + P351 + P338
危险标志：GHS02, GHS05, GHS07