3,3'4,4'-二苯甲酮四羧酸二酐S44973 · CAS 2421-28-5
96%
96%

epoxy value:0.74-0.83
98%
99%
Mw <100,000 ,35 wt. % in water,100-200 cP(25 °C)
促销≥97%
97%

96%

97%
≥95%, contains 150 ppm MEHQ as stabilizer
≥98.0%
96%,250ppm MEHQ 稳定剂
促销98%
促销97%
促销≥95%(GC), contains MEHQ as stabilizer
≥97%(GC), contains 50 ppm 4-tert-butylcatechol as inhibitor
97%

98%
![3,9-双十八烷氧基-2,4,8,10-四氧-3,9-二磷螺环[5.5]十一烷结构图](/assets/reference-structures/3806-34-6.png)
试剂级

98%
98%
98%
≥97%, 含0.1% TBC稳定剂