we have always been on the for 1 3 bis 4 5 dihydro 2 oxazolyl benzene We cordially welcome customers from at home and abroad to join us and cooperate with us to enjoy a better future.
Spiro[isobenzofuran-1(3H),9'-[9H]xanthen]-3-one,6'-(diethylamino)-1',3'-dimethyl- CAS 21934-68-9