Cbz-l-glutamine

Cbz-l-glutamine is the N‑benzyloxycarbonyl protected form of the L‑isomer of glutamine, offered as a dry crystalline powder. The product carries the CAS identifier 1155-62-0 and is manufactured to pharmaceutical‑grade specifications. Shipments are delivered in 25 kg fiber drums, which is the standard bulk packaging used by the supplier.

The protected amino acid is widely employed in peptide coupling reactions where the Cbz group safeguards the side‑chain amide during synthesis and can be removed by catalytic hydrogenation. Typical commercial purity is reported at ≥ 97 % by HPLC, and the molecular weight is roughly 340.38 g mol‑1. It dissolves well in polar aprotic solvents such as DMF and DMSO, with moderate solubility in methanol, and should be kept in a dry environment to maintain stability.

Customers are generally academic research groups, contract development organisations and pharmaceutical firms that need a consistent supply of protected glutamine for drug‑discovery programmes. The listing mentions FOB and CIF pricing options but does not state minimum order quantities or exact lead times, so these details must be clarified with the supplier. Importers should obtain the Certificate of Analysis, confirm the pharmaceutical‑grade claim and agree on Incoterms and payment terms before finalising the purchase.

Ningbo Create Biological Project Co., Ltd operates from the Guisi Industry Zone in Ningbo, Zhejiang Province, China, with its address listed as Genyu Rd., postal code 315206. The company is registered as an imported‑tier supplier and carries a harbour‑level trust tier, indicating it has passed the platform’s basic verification checks.

The supplier’s profile records a response rate of 0.00 and no average response time, suggesting that communication may be delayed. The listing specifies that the chemicals are produced to pharmaceutical‑grade standards and are packed in 25 kg fiber drums, but no further operational metrics such as production capacity are disclosed.