SHEET /m/cefdinir · PubChem CID 6915944 · CAS 91832-40-5 · REV 2026.07

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Cefdinir

from source

C14H13N5O5S2 · 395.4 g/mol

Omnicef · Cefzon · CFDN

What is Cefdinir?

A third-generation cephalosporin antibiotic taken by mouth, used for ear, sinus and chest infections. from source

CategoryPrescription medicine

Chemical familyCarboxylic Acids Amines Amides

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Fig. 1 · 2D structure RDKit

SMILESC=CC1=C(N2[C@@H]([C@@H](C2=O)NC(=O)/C(=N\O)/C3=CSC(=N3)N)SC1)C(=O)O

Where you'll find it

Dispensed on prescription, not sold on a shelf. See the rest of the prescription medicine group.

Toxicity & hazards

DangerIrritantHealth hazardH315, H317, H319, H334, H335from source

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Where Cefdinir leads

Relatedcomputed

Ceftriaxone51% similarBoth carry a carboxylic acid, an amide and an amine group.Cefalexin36% similarBoth carry a carboxylic acid, an amide and an amine group.

Sources & methodology

PubChem CID: 6915944
Wikidata: Q1453445
Structure: PubChem → RDKit
Similar molecules: MoleculeFinder fingerprint similarity
Data refreshed: September 13, 2026

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