http://www.ec21.com/ec-market/o phthalic acid.html http://weltonchemical.en.ec21.com/4_Amino_o_phthalic_Acid--3343393_3344494.html Mail Address: ruby(at)weltonchem(dot)com; Contacter: Miss.ruby from Changzhou Welton Chemical Co.,Ltd. Specificati20090615 http://liping198713.en.ec21.com/Phthalic_Anhydride--3892111_3904140.html Phthalic anhydride Chemical name: phthalic anhydride Molecular formula: C 8 H 4 O 3 CAS RN.: 64-18-6 Molecula20091107 http://linda20091020.en.ec21.com/Phthalic_Anhydride_linda_pytchg.com--3887839_3887855.html Phthalic anhydride Chemical name phthalic anhydride Molecular formula C 8 H 4 O 3 CAS RN. 64-20091106 http://hy3919083.en.ec21.com/Organic_Chemicals--1326235_1326320.htmlACID 3-HYDROXY BENZOIC ACID 3-METHOXY BENZOIC ACID 4,4-BIS(DIMETHYLAMINO)DIPHENYL 4B ACID 4-CHLORO-1,8-NAPHTHALIC 20091103 http://wangdachemical.en.ec21.com/Mono_pentaerythritol_98--3613564_3823585.html Product Name: Pentaerythritol CAS RN.: 115-77-5 Molecular Formula: C 5 H 12 O 4 Properties: Appearance: white20090916 http://amychemica.en.ec21.com/Active_Pharmaceutical_Ingredients_Intermediates--2263876_2263938.htmlO-Anisidine: Pharmaceutical intermediates, Used as vanillin intermediates in food industry, acidic, ice, solvent an20090622 http://wael2100.en.ec21.com/Short_Oil_Alkyd_Resin_60--3350827_3350860.htmlAcid value ( mgkoh/gm ) Z 6 10-15 Principal properties Color ( Gardner 1933 ) 50 % in xylene max. 5 20090217