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Screening compounds

Cefclidin

Also known as Cefaclidine, Cefclidine, Cefclidina

CAS 105239-91-6Formula C21H26N8O6S2Molar mass 550.62 g/mol
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Cefclidin chemical structure, C21H26N8O6S2, CAS 105239-91-6
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
105239-91-6
Formula
C21H26N8O6S2
Molar mass
550.62 g/mol
HS code
294190
Category
Screening compounds

What is Cefclidin?

Plain description, key identifiers and synonyms

Cefclidin is a fourth-generation cephalosporin antibiotic having (4-carbamoyl-1-azoniabicyclo[2.2.2]octan-1-yl)methyl and [(2Z)-2-(2-amino-1,3-thiazol-4-yl)-2-(methoxyimino)acetyl]amino side groups located at positions 3 and 7 respectively. It is a cephalosporin and a member of thiadiazoles.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
(6R,7R)-7-[[(2Z)-2-(5-amino-1,2,4-thiadiazol-3-yl)-2-methoxyiminoacetyl]amino]-3-[(4-carbamoyl-1-azoniabicyclo[2.2.2]octan-1-yl)methyl]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate
CAS number
105239-91-6 CAS number cross-checkedOther or deprecated CAS: 114013-51-3
Molecular formula
C21H26N8O6S2
UNII
78963CJ0OG
InChIKey
JUVHVMCKLDZLGN-TVNFHGJBSA-N
InChI
InChI=1S/C21H26N8O6S2/c1-35-26-11(14-25-20(23)37-27-14)15(30)24-12-16(31)28-13(18(32)33)10(9-36-17(12)28)8-29-5-2-21(3-6-29,4-7-29)19(22)34/h12,17H,2-9H2,1H3,(H5-,22,23,24,25,27,30,32,33,34)/b26-11-/t12-,17-,21?,29?/m1/s1
Canonical SMILES
CON=C(C(=O)NC1C(=O)N2C(C(=O)[O-])=C(C[N+]34CCC(C(N)=O)(CC3)CC4)CSC12)c1nsc(N)n1
Isomeric SMILES
CO/N=C(/C1=NSC(=N1)N)\C(=O)N[C@H]2[C@@H]3N(C2=O)C(=C(CS3)C[N+]45CCC(CC4)(CC5)C(=O)N)C(=O)[O-]

Synonyms

  • Cefaclidine
  • Cefclidine
  • Cefclidina
  • Cefclidinum
  • 3-((4-Carbamoyl-1-quinuclidinio)methyl)-7-(2-(5-amino-1,2,4-thiadiazol-3-yl)-2-methoxyiminoacetamido)-8-oxo-5-thia-1-azabicyclo(4,2,0)oct-2-ene-2-carboxylate
  • Antibiotic E 1040
  • E 1040 (Antibiotic)
  • Antibiotic E 1040, Cefclidin, Cefclidine
  • 7-{[(2Z)-2-(2-amino-1,3-thiazol-4-yl)-2-(methoxyimino)acetyl]amino}-3-[(4-carbamoyl-1-azoniabicyclo[2.2.2]octan-1-yl)methyl]-3,4-didehydrocepham-4-carboxylate

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
550.62 g/molcalc.
Exact mass
550.1417 Dacalc.
LogP (octanol/water)
-2.64calc.
Topological polar surface area
206 Ųcalc.
Hydrogen bond donors
3calc.
Hydrogen bond acceptors
12calc.
Rotatable bonds
8calc.
Heavy atoms
37calc.
Rings
6calc.
Aromatic rings
1calc.
Fraction sp3 carbons
0.57calc.
Formal charge
0calc.
Stereocentres
2calc.
Lipinski rule of five
Fails (2 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=C(C[N+]34CCC(CC3)CC4)CSC12)c1ncsn1

N=C(C(=O)NC1C(=O)N2C=C(C[N+]34CCC(CC3)CC4)CSC12)c1ncsn1

6 rings, 28 atoms.

No other chemical in our database has 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.

Cefclidin suppliers

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Cefclidin 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

Pharmacology

Cefclidin is a fourth-generation, parenteral cephalosporin with strong activity against glucose non-fermentative bacillus bacteria, but is ineffective against gram-positive cocci.

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 Cefclidin 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 Cefclidin is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

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

What is Cefclidin?

Cefclidin is a fourth-generation cephalosporin antibiotic having (4-carbamoyl-1-azoniabicyclo[2.2.2]octan-1-yl)methyl and [(2Z)-2-(2-amino-1,3-thiazol-4-yl)-2-(methoxyimino)acetyl]amino side groups located at positions 3 and 7 respectively. It is a cephalosporin and a member of thiadiazoles.

What is the CAS number of Cefclidin?

The CAS registry number of Cefclidin is 105239-91-6. Other or deprecated CAS numbers: 114013-51-3.

What is the molecular formula and weight of Cefclidin?

The molecular formula of Cefclidin is C21H26N8O6S2 and its molar mass is 550.62 g/mol.

What is Cefclidin used for?

Known uses and roles of Cefclidin include building blocks in research and laboratory and screening compounds in research and laboratory.

Is Cefclidin hazardous?

No GHS hazard classification for Cefclidin 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 Cefclidin?

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

Where can I buy Cefclidin?

Post a free request on CompoundList and suppliers of Cefclidin will send you quotes. Your contact details stay private until you accept a quote.

What is the price of Cefclidin?

Suppliers quote Cefclidin 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 Cefclidin

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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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