Cas No. 7803-58-9 Sulfamide

4 5 DIMETHYL 1 3-DIOXOL 2 One (DMDO)

4-Chloromethyl-5-methyl-1,3-dioxol-2-one is an important reagent in the preparation of angiotensin II receptor antagonist such as Olmesratan Medoxomil (O550000). 4-Chloromethyl-5-methyl-1,3-dioxol-2-o ne is also used in the preparation of prodrugs of ampicillin. 4-Chloromethyl-5-methyl-1,3-dioxol-2-one is used as a pharmaceutical intermediate, olmesartan intermediate, olmesartan medoxoside side chain DMDO-CL.

1 1 Carbonyldiimidazole Cas No. 530-62-1

11 Carbonyldiimidazole is a peptide coupling reagent, it is used in the synthesis of peptides. Reacts readily with carboxylic acids to form acyl imidazoles subsequent reaction with amines to form amides goes smoothly.

N N Dicyclohexylcarbodiimide DCC Cas No. 538-75-0

Dicydohexyl carbodiimide is used in peptide chemistry as a coupling reagent. It is both an irritant and a sensitizer, and caused contact dermatitis in pharmacists and chemists.N N-Dicyclohexylcarbodiimide is a carbodiimide used to couple amino acids during peptide synthesis. N N Dicyclohexylcarbodiimide is used as a dehydrating agent for the preparation of amides, ketones , nitriles as well as in the inversion and esterification of secondary alcohols.