Pharmaceutical intermediates are important raw materials in drug synthesis. The following intermediates have a wide range of applications in the pharmaceutical field.

7-Dehydrocholesterol is a precursor of vitamin D3 and can be converted to vitamin D3 through ultraviolet radiation. Vitamin D3 plays an important role in regulating calcium and phosphorus metabolism and contributes to bone health.

25-Hydroxyvitamin D3, calcifediol, anhydrocalcifediol, and calcitriol are all vitamin D derivatives that play a key role in regulating calcium and phosphorus metabolism, promoting bone formation, and maintaining bone health. They are important intermediates in the synthesis of drugs for treating diseases such as osteoporosis.

Nitrocefin and ceftriaxone hydrochloride are important intermediates in the synthesis of cephalosporin antibiotics. Cephalosporins have broad antimicrobial spectrum and strong bactericidal properties and are widely used in clinical treatment of various bacterial infections.

BOC-D-pyroglutamate ethyl ester is an important amino acid derivative intermediate with important applications in the synthesis of peptide drugs and antibiotics.

Aromatic organic acid derivatives such as 2-iodo-5-methylbenzoic acid and 2-amino-4-bromo-3-fluorobenzoic acid are often used as key intermediates in pharmaceutical synthesis to synthesize compounds with specific pharmacological activities.

Sodium polyanetholesulfonate can be used in the pharmaceutical field as a solubilizer and emulsifier, helping to improve the solubility and stability of drugs.

1-Methyl-1-ethylpyrrolidine bromide is a heterocyclic compound intermediate that plays an important role in the synthesis of certain neurological drugs and anti-infective drugs.