1  1, 4, 5, 8-Naphthalenetetracarboxylic Dianhydride CAS Registry Number 81-30-1  Purity:98%
2  3,3',4,4'-Benzophenonetetracarboxylic dianhydride
CAS :2421-28-5  purity 99%
3  4,4'-Oxydiphthalic Anhydride
CAS:1823-58-2  Purity 99.5%
4  4,4'-biphthalic Anhydride CAS 2420-87-3   Purity 99.5%
5  1,2,3,4-cyclobutanetetracarboxylic dianhydride
CAS 4415-87-6  Purity 98%
7  trans-4'-Propyl-(1,1'-bicyclohexyl)-4-carboxylic acid
CAS  65355-32-0 Purity:99.5%
8  trans-4-Pentylcyclohexanecarboxylic acid
CAS Registry Number 38289-29-1 Purity:99.5%
9  trans-4-Butylcyclohexanecarboxylic acid
CAS Registry Number 38289-28-0  Purity:99.5%
10  trans-4-Ethylcyclohexanecarboxylic acid CAS Registry Number 6833-47-2 Purity:99.5%
11  trans-4-Propylcyclohexanecarboxylic acid
CAS Registry Number 38289-27-9  Purity:99.5%
12  1,4-Cyclohexanedicarboxylic acid
CAS Registry Number 1076-97-7  Purity:99%
13  trans-4-Aminocyclohexanol  CAS Registry Number 27489-62-9  Purity:99.5%
14  Trans-4-pentyl-cyclohexylcyclohexanol
purity:99.5%
15  Trans-4-propyl-cyclohexylcyclohexanol purity:99.5%  
16  Trans-4-ethyl-cyclohexylcyclohexanol purity:99.5%
17  Trans-4-butyl-cyclohexylcyclohexanol purity:99.5%
18  trans-1,2-Cyclohexanediol CAS:1460-57-7 purity:99%
21  3,5-dinitrobenzoyl chloride  CAS 99-33-2 Purity 99.2%
22  2,2-Bis[4-(4-aminophenoxy)phenyl]propane
Purity:99.5% CAS13080-86-9
23  4,4'-bis(4-aminophenoxy)biphenyl  CAS 13080-85-8
Purity:99.5%
24  2,2-Bis[4-(4-aminophenoxy)phenyl]hexafluoropropane
CAS:69563-88-8 Purity:99%
25  4,4'-bis(4-aminophenoxy)diphenylsulfoneCAS13080-89-2
Purity:99.9%
26  2,2'-bis(trifluoromethyl)benzidineCAS341-58-2Purity:99%
27  15-Crown-5 CAS Registry Number 33100-27-5
28  2,2-bis(4-hydroxyphenyl)hexafluoropane
Hexafluorobisphenol A CAS 1478-61-1 Purity:99.5%
29  4,4'-bis(4-aminophenoxy)diphenylether
CAS Registry Number 13080-88-1  Purity:99%