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Beijing Prina Chemical Industry Co., Ltd??? ?? ??? ?????.

?? ?:Beijing Prina Chemical Industry Co., Ltd

??:+86-10-67861162, 61267868

???:

??:China

? ?? ?:21

Fluorescent Brightener KS-N		5242-49-9	C29H20N2O2
tert-Butylhydroquinone	2-t-????????	1948-33-0	C10H14O2
4,4-Bis(diethylphosphonomethyl)biphenyl		17919-34-5	C22H32O6P2
Terephthalaldehyde	???? ????	623-27-8	C8H6O2
Optical brightener OB-1	2,2'-(1,2-????-4,1-???)????????	1533-45-5	C28H18N2O2
1,4-Bis(4-cyanostyryl)benzene		13001-40-6	C24H16N2
2,5-Bis(5-tert-butyl-2-benzoxazolyl)thiophene	2,5-??(5-??-??????-2-?)????	7128-64-5	C26H26N2O2S
fluorescent whitening agent SWN			C14H17NO2
4,4'-biphenyldichlorobenzyl ester
4,4'-Bis(chloromethyl)-1,1'-biphenyl	4,4'-??(?????)-1,1'-????	1667-10-3	C14H12Cl2
Disodium 4,4'-bis(2-sulfostyryl)biphenyl	2,2'-((1,1'-???)-4,4'-???-2,1-????)??- ???? ? ???? ?	27344-41-8	C28H23NaO6S2
7-Diethylamino-4-methylcoumarin	??? 1	91-44-1	C14H17NO2
Benzophenone	????	119-61-9	C13H10O
4-Hydroxy-2,2,6,6-tetramethyl-piperidinooxy	4-????-??	2226-96-2	C9H18NO2*
Fluorescent Brightener 367	??????????	5089-22-5	C24H14N2O2
C.I. 482200		38775-22-3	C28H22O6S2
4-Formylbenzoic acid		619-66-9	C8H6O3
Optical Brighter FP127
2,5-Di-tert-butylhydroquinone	2,5-?-t-????????	88-58-4	C14H22O2
2-Formylbenzenesulfonic acid sodium salt	??????-2-??????	1008-72-6	C7H5NaO4S
o-Anisaldehyde	2-?????????	135-02-4	C8H8O2