全部
-
≥97%
≥98%
85%
90%
92%
94%
95%
95% (sum of isomers)
95+%
96.0%(GC)
96%
97.5%
97%
97% (H-NMR)
98.0%(GC)
98%
99%
AldrichCPR
contains 100?ppm tert-butylcatechol as inhibitor, 97%
contains MEHQ as inhibitor, 97%
electronic grade, ≥99% trace metals basis
min. 98%
technical grade, 80%
technical grade, 90%