光学brightener SWN/ER330/CXT/CBS-X/OB/OB-1/

NAMESame Name CAS NO.SpecificationsApplicationFluorescent brightener / Optical brightener / optical brightening agent / fluorescent whitening agentOptical brightener ER - 3301,4-Bis(2-Cyanostyryl )Benzene,Fluorescent brightener ER,Optical brightener ER-330,CAS:13001-39-3 C.I. 199Light yellow liquidActive content:20%Used for polyester and blended fabricOptical brightener EB - 3301-(2-Cyanostyryl)-4-(4-cyanostyryl)benzene ,Fluorescent brightener ER-II;FBA 199:1;CAS:13001-38-2C.I. 199:1Light yellow liquidActive content:20%Used for polyester.Also used in leather, coating industriesOptical brightener SWN ( MS)7-Diethylamino-4-Methyl Coumarin, Coumarin 1, brightener 61,UVITEX SWR SWN,.CAS:91-44-1C.I.140White crystalline powderPurity:>99%(HPLC)Used for wool, cotton, natural silk, nylon and plastic, detergentAnti-Yellowing agent HN-1304,4'-Hexamethylenebis(1,1-dimethylsemicarbazide), 1,6-HEXAMETHYLENEBIS(N,N-DIMETHYLSEMICARBAZIDE),69938-76-7Very fine White powderPurity: 98%Used for polyurethane ( PU /Spandex )spinning process and Leather ProcessingAnti-yellowing agentHN-1501,1,1',1'-TETRAMETHYL-4,4'-(METHYLENEDI-P-PHENYLENE)DISEMICARBAZIDE, Yellow inhibitor HN-150,85095-61-0Very fine White powderPurity: 95%For polyurethane industry,Fiber , synthesized leather, man-made leather.Organic intermediates / Pharmaceutical Intermediates2-CyanobenzaldehydeO-Cyanobenzaldehyde,2-Formylbenzonitrile,Phthalaldehydonitrile7468-67-9Light yellow powderPurity: 98%(GC)Used in organic synthesis, intermediates in drug hydrazine phthalazine,intermediate for production of pharmaceuticals and other fine chemicals3-CyanobenzaldehydeM-Cyanobenzaldehyde,3-Formylbenzonitrile24964-64-5Light yellow powderPurity: 98%(GC)Used in organic synthesis,intermediate for production of pharmaceuticals and other fine chemicals4-CyanobenzaldehydeP-Cyanobenzaldehyde,4-Formylbenzonitrile105-07-7Light yellow powderPurity: 98%(GC)Used as a pharmaceutical intermediate and other fine chemicals4-Methylumbelliferone7-HYDROXY-4-METHYLCOUMARIN , COUMARIN 4, 7-Hydroxy-4-methyl-2H-1-benzopyran-2-one,90-33-5White powderPurity: 97%(HPLC)Used as a pharmaceutical intermediate.Use of the product as a gallbladder drug, anti-allergy cromolyn sodium is the intermediate