Dear Sir or Madam,
We have one of the biggest manufacturers of Optical brighteners(fluorescent whitening agent), intermediates and pigments in China. The following products are produced by us for you to choose from:
ItemProduct NameChemical NameC.I. NoCAS RN
1optical brightening agent KCB1.4-bis(2-benzoxazoly)naphthalene3675089-22-5
2optical brightening agent OB2.5-bis[2-(5-tert-butyl-2benzoxazoly)thiophene1847128-64-5
3optical brightening agent OB-12.2-(4.4-diphenolvinyly)dibenzoxazol3931533-45-5
4optical brightening agent FP1.1-biphenyl-4.4-bis-benzoxazole37840470-68-6
5optical brightening agent ER-11.4-bis(2cyanostyryl)benzene19913001-40-6
6optical brightening agent CBS-XStilbene derivative35127344-41-8
7optical brightening agent KSN4.4-bis(5-methyl-2-benzoxoazol)-ethylene3685242-49-9
8pigment Red 1222.9-dimethyl quinacridone73915980-26-7
9pigment Purple 19quinacredone739001047-16-1
104,4'-bis(Chloromethyl)-Diphenyl
114,4'-bis(Diethoxphosphonomethyl)-Dipheyl
122,5-Thiophene Dicarboxylic Acid
132-Amino-4-tert-Butylphenol
14Benzaldehyde-2-Sulfonicid Sodium

Looking forward to hearing from you.
Best Regards,
Yao guohua
Beijing Prina Chemical Industry Co., Ltd. (Zhejiang Branch)
Tel:86-572-6776219
Fax:86-10-87204860
Mobile:13336030762
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