Ultraviolet Absorbent UV-3638 CAS 18600-59-4
TNJ Chemical produces super quality 2,2'-(1,4-PHENYLENE)BIS-4H-3,1-BENZOXAZIN-4-ONE CAS 18600-59-4 - 98%MIN assay, GMP SGS certification, USP BP EP FCC standard, Competitive price, online purchase support. To buy Ultraviolet Absorbent UV-3638 CAS 18600-59-4 from China factory supplier manufacturer, please contact sales@tnjchem.com