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Antibiotics and anti-infectives

Cefdinir

Also known as Omnicef, Cefzon, CFDN

CAS 91832-40-5Formula C14H13N5O5S2Molar mass 395.42 g/molEC 643-088-1
GHS signal word: Danger. Pictograms: Harmful or irritant, Serious health hazard 71 suppliers listed Drug substance
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Cefdinir chemical structure, C14H13N5O5S2, CAS 91832-40-5
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
91832-40-5
Formula
C14H13N5O5S2
Molar mass
395.42 g/mol
EC number
643-088-1
HS code
294190
Category
Antibiotics and anti-infectives

What is Cefdinir?

Plain description, key identifiers and synonyms

Cefdinir is a cephalosporin compound having 7beta-2-(2-amino-thiazol-4-yl)-2-[(Z)-hydroxyimino]-acetylamino- and 3-vinyl side groups. It has a role as an antibacterial drug. It is a cephalosporin and a ketoxime.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
(6R,7R)-7-[[(2Z)-2-(2-amino-1,3-thiazol-4-yl)-2-hydroxyiminoacetyl]amino]-3-ethenyl-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid
CAS number
91832-40-5 CAS number cross-checked
EC number
643-088-1
Molecular formula
C14H13N5O5S2
UNII
CI0FAO63WC
MDL number
MFCD00865030
InChIKey
RTXOFQZKPXMALH-GHXIOONMSA-N
InChI
InChI=1S/C14H13N5O5S2/c1-2-5-3-25-12-8(11(21)19(12)9(5)13(22)23)17-10(20)7(18-24)6-4-26-14(15)16-6/h2,4,8,12,24H,1,3H2,(H2,15,16)(H,17,20)(H,22,23)/b18-7-/t8-,12-/m1/s1
Canonical SMILES
C=CC1=C(C(=O)O)N2C(=O)C(NC(=O)C(=NO)c3csc(N)n3)C2SC1
Isomeric SMILES
C=CC1=C(N2[C@@H]([C@@H](C2=O)NC(=O)/C(=N\O)/C3=CSC(=N3)N)SC1)C(=O)O

Synonyms

  • Omnicef
  • Cefzon
  • CFDN
  • Cefdinirum
  • FK 482
  • Cefdinir anhydrous
  • (6R,7R)-7-[(2Z)-2-(2-amino-1,3-thiazol-4-yl)-2-(N-hydroxyimino)acetamido]-3-ethenyl-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid
  • 5-Thia-1-azabicyclo(4.2.0)oct-2-ene-2-carboxylic acid, 7-(((2-amino-4-thiazolyl)(hydroxyiminoacetyl)amino)-3-ethenyl-8-oxo-, (6R-(6-alpha,7-beta(Z)))-
  • (6R,7R)-7-{2-(2-Amino-thiazol-4-yl)-2-[(Z)-hydroxyimino]-acetylamino}-8-oxo-3-vinyl-5-thia-1-aza-bicyclo[4.2.0]oct-2-ene-2-carboxylic acid
  • (6R,7R,Z)-7-(2-(2-aminothiazol-4-yl)-2-(hydroxyimino)acetamido)-8-oxo-3-vinyl-5-thia-1-aza-bicyclo[4.2.0]oct-2-ene-2-carboxylic acid
  • (6R,7R)-7-((2Z)-2-(2-amino-1,3-thiazol-4-yl)-2-(N-hydroxyimino)acetamido)-3-ethenyl-8-oxo-5-thia-1-azabicyclo(4.2.0)oct-2-ene-2-carboxylic acid
  • (6R,7R)-7-(2-(2-Amino-thiazol-4-yl)-2-((Z)-hydroxyimino)-acetylamino)-8-oxo-3-vinyl-5-thia-1-aza-bicyclo(4.2.0)oct-2-ene-2-carboxylic acid
  • (6R,7R,Z)-7-(2-(2-aminothiazol-4-yl)-2-(hydroxyimino)acetamido)-8-oxo-3-vinyl-5-thia-1-aza-bicyclo(4.2.0)oct-2-ene-2-carboxylic acid
  • 5-Thia-1-azabicyclo(4.2.0)oct-2-ene-2-carboxylic acid, 7-(((2Z)-2-(2-amino-4-thiazolyl)-2-(hydroxyimino)-1-oxoethyl)amino)-3-ethenyl-8-oxo-, (6R,7R)-
  • (6R,7R)-7-((Z)-2-(2-Aminothiazol-4-yl)-(2-hydroxyimino)acetylamino)-8-oxo-3-vinyl-5-thia-1-azabicyclo(4.2.0)oct-2-ene-2-carboxylic acid
  • (6R,7R)-7-[[(2Z)-2-(2-amino-1,3-thiazol-4-yl)-2-hydroxyiminoacetyl]amino]-3-ethenyl-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid
  • Cefdinyl
  • Cefdinir-15N2,13C
  • (6R,7R)-7-((Z)-2-(2-aminothiazol-4-yl)-2-(hydroxyimino)acetamido)-8-oxo-3-vinyl-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid
  • Cefdirnir
  • (6R,7R)-7-{[(2Z)-2-(2-amino-1,3-thiazol-4-yl)-2-(hydroxyimino)acetyl]amino}-3-ethenyl-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid
  • Ceftinex
  • BMY 28488
  • CI 983
  • Omnicef (TN)
Show all 30 synonyms
  • Cefzon (TN)
  • 5-Thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid,7-[[(2Z)-(2-amino-4-thiazolyl)(hydroxyimino)acetyl]amino]-3-ethenyl-8-oxo-, (6R,7R)-
  • Cefdinir (Standard)
  • Cefdinir, 97%
  • (-)-(6R,7R)-7-(2-(2-Amino-4-thiazolyl)glyoxylamido)-8-oxo-3-vinyl-5-thia-1-azabicyclo(4.2.0)oct-2-ene-2-carboxylic acid, 7(sup 2)-(Z)-oxime

Physical and chemical properties

Measured values and descriptors computed from the structure

Physical and chemical properties

Measured values, check the supplier specification for your grade

No measured properties are recorded for this substance yet. Ask suppliers for a technical data sheet.

Values vary by grade. Ask suppliers for the COA or TDS of the batch you buy.

Computed descriptors

Calculated from the structure, useful for screening and formulation

Molecular weight
395.42 g/molcalc.
Exact mass
395.0358 Dacalc.
LogP (octanol/water)
-0.17calc.
Topological polar surface area
158.2 Ųcalc.
Hydrogen bond donors
4calc.
Hydrogen bond acceptors
9calc.
Rotatable bonds
5calc.
Heavy atoms
26calc.
Rings
3calc.
Aromatic rings
1calc.
Fraction sp3 carbons
0.21calc.
Formal charge
0calc.
Stereocentres
2calc.
Lipinski rule of five
Passes (0 violations)calc.

Calculated for screening. Confirm critical figures with the supplier.

Murcko scaffold

The ring system that remains when every side chain is removed

Murcko scaffold of this chemical, N=C(C(=O)NC1C(=O)N2C=CCSC12)c1cscn1

N=C(C(=O)NC1C(=O)N2C=CCSC12)c1cscn1

3 rings, 19 atoms.

96 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Danger
GHS07: Harmful or irritant
Harmful or irritant
GHS08: Serious health hazard
Serious health hazard

Hazard statements

  • H315Causes skin irritation.
  • H317May cause an allergic skin reaction.
  • H319Causes serious eye irritation.
  • H334May cause allergy or asthma symptoms or breathing difficulties if inhaled.
  • H335May cause respiratory irritation.
Precautionary statements (23)
  • P233Keep container tightly closed.
  • P260Do not breathe dust, fume, gas, mist, vapours or spray.
  • P261Avoid breathing dust, fume, gas, mist, vapours or spray.
  • P264Wash skin thoroughly after handling.
  • P264 + P265Wash skin thoroughly after handling. Do not touch eyes.
  • P271Use only outdoors or in a well-ventilated area.
  • P272Contaminated work clothing should not be allowed out of the workplace.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P284In case of inadequate ventilation wear respiratory protection.
  • P302 + P352If on skin: Wash with plenty of water.
  • P304 + P340If inhaled: Remove person to fresh air and keep comfortable for breathing.
  • P305 + P351 + P338If in eyes: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
  • P319Get medical help if you feel unwell.
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P332 + P317If skin irritation occurs: Get medical help.
  • P333 + P317If skin irritation or rash occurs: Get medical help.
  • P337 + P317If eye irritation persists: Get medical help.
  • P342 + P316If experiencing respiratory symptoms: Get emergency medical help immediately.
  • P362 + P364Take off contaminated clothing. And wash it before reuse.
  • P403Store in a well-ventilated place.
  • P403 + P233Store in a well-ventilated place. Keep container tightly closed.
  • P405Store locked up.
  • P501Dispose of contents and container in accordance with local regulations.

GHS classification summary, not a safety data sheet (SDS). Classifications can differ by supplier, grade and concentration. Always check the supplier's SDS.

Full safety data and first aid

Cefdinir suppliers

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Where suppliers are based

71 suppliers in 16 countries

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Cefdinir price

Indicative price range per kg from live supplier offers

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Uses and applications

What the substance is used for, by industry and function

Pharmacological actions

  • Third Generation Cephalosporins

Roles

  • antibacterial agent
  • antibacterial drug
  • antiinfective agent
  • antimicrobial agent
  • antimicrobial drug
  • pharmaceutical

Pharmacology

Cefdinir is a Cephalosporin Antibacterial.

Regulatory status

Inventories, regulations and trade controls that list this substance

Health and food

  • Active ingredient in FDA approved drug labels

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code Cefdinir is traded under.

HS 2941.90Indicative HS code

Antibiotics, other

World exports in 2024
$6.39B
+2.3% vs 2023, imports $6.97B
2019 to 2024
Top exporters
  1. China39.7%
  2. United States11.3%
  3. Switzerland * partner reported10.9%
Top importers
  1. Italy15.0%
  2. India * partner reported12.0%
  3. China8.7%

* Partner reported figures, a lower bound.

Reported customs values in USD, not prices.Full trade data

The HS code shown for Cefdinir is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about Cefdinir, based on the data on this page

What is Cefdinir?

Cefdinir is a cephalosporin compound having 7beta-2-(2-amino-thiazol-4-yl)-2-[(Z)-hydroxyimino]-acetylamino- and 3-vinyl side groups. It has a role as an antibacterial drug. It is a cephalosporin and a ketoxime.

What is the CAS number of Cefdinir?

The CAS registry number of Cefdinir is 91832-40-5.

What is the molecular formula and weight of Cefdinir?

The molecular formula of Cefdinir is C14H13N5O5S2 and its molar mass is 395.42 g/mol.

What is Cefdinir used for?

Known uses and roles of Cefdinir include antibacterials and antibiotics in pharmaceuticals, antibacterial agent, antibacterial drug, antiinfective agent, antimicrobial agent and 3 more.

Is Cefdinir hazardous?

Cefdinir carries the GHS signal word "Danger". Main hazards: causes skin irritation, may cause an allergic skin reaction, causes serious eye irritation. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Cefdinir?

Cefdinir is usually classified under HS code 294190 (Antibiotics, other). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Cefdinir?

CompoundList lists 71 suppliers of Cefdinir in China, United States, India, United Kingdom and 12 more. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

Where can I buy Cefdinir in India?

10 suppliers in India list Cefdinir on CompoundList. Filter the suppliers list by country and send a request to compare prices, grades and delivery times.

What is the price of Cefdinir?

Suppliers quote Cefdinir on request because prices depend on grade, purity, quantity and destination. A free request on CompoundList gets you several quotes to compare.

Guides for buyers

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Data last updated 7 Oct 2026. Details may have changed, please confirm them with the supplier. Report an error on this page
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