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Impurities and reference standards

Cefdinir, (E)-

Also known as Cefdinir, E-, 5-Thia-1-azabicyclo(4.2.0)oct-2-ene-2-carboxylic acid, 7-(((2-amino-4-thiazolyl)(hydroxyimino)acetyl)amino)-3-ethenyl-8-oxo-, (6r-(6alpha,7beta(E)))-, 5-Thia-1-azabicyclo(4.2.0)oct-2-ene-2-carboxylic acid, 7-(((2E)-2-(2-amino-4-thiazolyl)-2-(hydroxyimino)acetyl)amino)-3-ethenyl-8-oxo-, (6R,7R)-

CAS 178601-88-2Formula C14H13N5O5S2Molar mass 395.42 g/mol
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Cefdinir, (E)- chemical structure, C14H13N5O5S2, CAS 178601-88-2
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
178601-88-2
Formula
C14H13N5O5S2
Molar mass
395.42 g/mol
HS code
294190
Category
Impurities and reference standards

What is Cefdinir, (E)-?

Plain description, key identifiers and synonyms

(6R,7R)-7-[[2-(2-amino-4-thiazolyl)-2-hydroxyimino-1-oxoethyl]amino]-3-ethenyl-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid is a cephalosporin, a ketoxime and a member of 1,3-thiazoles.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
(6R,7R)-7-[[(2E)-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
178601-88-2
Molecular formula
C14H13N5O5S2
UNII
61G2M33IGF
InChIKey
RTXOFQZKPXMALH-RWFJUVPESA-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

  • Cefdinir, E-
  • 5-Thia-1-azabicyclo(4.2.0)oct-2-ene-2-carboxylic acid, 7-(((2-amino-4-thiazolyl)(hydroxyimino)acetyl)amino)-3-ethenyl-8-oxo-, (6r-(6alpha,7beta(E)))-
  • 5-Thia-1-azabicyclo(4.2.0)oct-2-ene-2-carboxylic acid, 7-(((2E)-2-(2-amino-4-thiazolyl)-2-(hydroxyimino)acetyl)amino)-3-ethenyl-8-oxo-, (6R,7R)-
  • 5-Thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid, 7-[[(2E)-2-(2-amino-4-thiazolyl)-2-(hydroxyimino)acetyl]amino]-3-ethenyl-8-oxo-, (6R,7R)-
  • (6R,7R)-7-((E)-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
  • Cefdinir impurity g
  • (E)-Cefdinir
  • E-Cefdinir
  • Cefdinir Impurity Z
  • (6R,7R)-7-[[(2E)-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
  • (6R,7R)-7-((E)-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
  • (6R,7R)-7-[[(2Z)-2-(2-Amino-4-thiazolyl)-2-(hydroxyimino)acetyl]amino]-3-ethenyl-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid
  • FK-482, CI-983
  • Cefdinir CP Impurity R
  • 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)-
  • (6r ,7r )-7-((E)-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
  • (6R,7R)-7-[[(2E)-(2-Amino-4-thiazolyl)(hydroxyimino)acetyl]amino]-3-ethenyl-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic Acid, Cefdinir EP Impurity R
  • (6R,7R)-7-[[(2E)-2-(2-aminothiazol-4-yl)-2-hydroxyimino-acetyl]amino]-8-oxo-3-vinyl-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid
  • (z)-7beta-[2-(2-amino-4-thiazolyl)-2-(hydroxyimino)acetamido]-3-vinyl-3-cephem-4-carboxylic acid
  • 7beta-[(Z)-2-(2-AMINO-4-THIAZOLYL)-2-HYDROXYIMINO ACETAMIDO]-3-VINYL-3-CEPHEM-4-CARBOXYLIC ACID
  • 7beta-[2-(2-amino-4-thiazolyl)-2-(z-hydroxyimino)acetamido]-3-vinyl-3-cephem-4-carboxylic acid

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

No GHS hazard classification is recorded for this substance yet. That does not mean it is harmless.

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

Cefdinir, (E)- suppliers

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Cefdinir, (E)- price

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Uses and applications

What the substance is used for, by industry and function

Applications are not documented for this substance yet. Suppliers often describe uses on their product pages, linked in the suppliers list above.

Regulatory status

Inventories, regulations and trade controls that list this substance

No regulatory list memberships are recorded for this substance yet. Always check the rules of the importing and exporting country before trade.

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code Cefdinir, (E)- 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, (E)- is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about Cefdinir, (E)-, based on the data on this page

What is Cefdinir, (E)-?

(6R,7R)-7-[[2-(2-amino-4-thiazolyl)-2-hydroxyimino-1-oxoethyl]amino]-3-ethenyl-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid is a cephalosporin, a ketoxime and a member of 1,3-thiazoles.

What is the CAS number of Cefdinir, (E)-?

The CAS registry number of Cefdinir, (E)- is 178601-88-2.

What is the molecular formula and weight of Cefdinir, (E)-?

The molecular formula of Cefdinir, (E)- is C14H13N5O5S2 and its molar mass is 395.42 g/mol.

Is Cefdinir, (E)- hazardous?

No GHS hazard classification for Cefdinir, (E)- is recorded on CompoundList yet. That does not prove it is safe. Always read the supplier safety data sheet.

What is the HS code of Cefdinir, (E)-?

Cefdinir, (E)- 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, (E)-?

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What is the price of Cefdinir, (E)-?

Suppliers quote Cefdinir, (E)- 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

Practical guides that help when you source, ship or handle Cefdinir, (E)-

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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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