CDI (CAS 530-62-1) in Pharmaceutical Intermediates and API Synthesis
From carbamate linkers to urea-based kinase inhibitors, 1,1′-Carbonyldiimidazole drives some of the most important bond-forming steps in modern API synthesis.
A safer phosgene alternative for API synthesis
1,1′-Carbonyldiimidazole (CDI, CAS 530-62-1) delivers a single carbonyl group between two nucleophiles, making it ideal for constructing carbamate (–OC(O)N–), urea (–NHC(O)NH–), amide, and active-ester functionalities found across modern drug substances.
Unlike phosgene, triphosgene, or carbonyl chlorides, CDI is a free-flowing crystalline solid that can be handled safely on plant scale — reducing capital cost, regulatory burden, and operator exposure risk.
Common API motifs built with CDI
CDI is the reagent of choice for installing high-value functional groups present in oncology, CNS, antiviral, and cardiovascular drug candidates.
- Ureas in kinase inhibitors (sorafenib-class scaffolds)
- Carbamate prodrugs and protecting groups (Boc, Cbz analogs)
- Imidazolide intermediates for macrocyclization
- Acyl-CoA mimetics and activated esters for biocatalysis
- Heterocycle formation: oxazolidinones, hydantoins, cyclic ureas
Why CDMOs and API plants standardize on CDI
CDI offers predictable kinetics, low metal contamination, and impurity profiles that translate directly into ICH-compliant filings. Its by-products (imidazole and CO₂) wash out easily during aqueous workup, improving yield and reducing genotoxic impurity risk.
MT Chemtech ships pharmaceutical-grade CDI globally with full COA, MSDS, and regulatory documentation supporting DMF and CEP submissions.
Need bulk 1,1′-Carbonyldiimidazole (CDI), Cas No. 530-62-1?
MT Chemtech is a leading CDI manufacturer shipping pharmaceutical-grade material worldwide. Download our MSDS & COA or request a quote.
Related articles
The Importance of CDI (CAS 530-62-1) in Peptide Synthesis
CDI has become an indispensable coupling reagent in modern peptide chemistry — offering a safe, mild, and racemization-free route to activate carboxylic acids for amide bond formation.
AgrochemicalsThe Role of CDI (CAS 530-62-1) in Agrochemical Manufacturing
Sulfonylurea herbicides, carbamate insecticides, and modern fungicides increasingly depend on CDI as a safe, scalable carbonyl source for urea and carbamate bond formation.