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Screening compounds

Cefaclor monohydrate

Also known as Cefaclor (monohydrate), (6R,7R)-7-((R)-2-amino-2-phenylacetamido)-3-chloro-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid hydrate, 3-Chloro-7-D-(2-phenylglycinamido)-3-cephem-4-carboxylic acid monohydrate

CAS 70356-03-5Formula C15H16ClN3O5SMolar mass 385.83 g/molEC 641-991-5
GHS signal word: Warning. Pictograms: Harmful or irritant 15 suppliers listed
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Cefaclor monohydrate chemical structure, C15H16ClN3O5S, CAS 70356-03-5
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
70356-03-5
Formula
C15H16ClN3O5S
Molar mass
385.83 g/mol
EC number
641-991-5
HS code
294190
Category
Screening compounds

What is Cefaclor monohydrate?

Plain description, key identifiers and synonyms

Cefaclor monohydrate is a chemical substance with the molecular formula C15H16ClN3O5S and a molar mass of 385.83 g/mol. Its CAS registry number is 70356-03-5. The IUPAC name is (6R,7R)-7-[[(2R)-2-amino-2-phenylacetyl]amino]-3-chloro-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid, hydrate.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
(6R,7R)-7-[[(2R)-2-amino-2-phenylacetyl]amino]-3-chloro-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid, hydrate
CAS number
70356-03-5 CAS number cross-checked
EC number
641-991-5
Molecular formula
C15H16ClN3O5S
UNII
69K7K19H4L
MDL number
MFCD00071999
InChIKey
WKJGTOYAEQDNIA-IOOZKYRYSA-N
InChI
InChI=1S/C15H14ClN3O4S.H2O/c16-8-6-24-14-10(13(21)19(14)11(8)15(22)23)18-12(20)9(17)7-4-2-1-3-5-7;/h1-5,9-10,14H,6,17H2,(H,18,20)(H,22,23);1H2/t9-,10-,14-;/m1./s1
Canonical SMILES
NC(C(=O)NC1C(=O)N2C(C(=O)O)=C(Cl)CSC12)c1ccccc1.O
Isomeric SMILES
C1C(=C(N2[C@H](S1)[C@@H](C2=O)NC(=O)[C@@H](C3=CC=CC=C3)N)C(=O)O)Cl.O

Synonyms

  • Cefaclor (monohydrate)
  • (6R,7R)-7-((R)-2-amino-2-phenylacetamido)-3-chloro-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid hydrate
  • 3-Chloro-7-D-(2-phenylglycinamido)-3-cephem-4-carboxylic acid monohydrate
  • Alfatil
  • Kefolor
  • Panacef
  • Alfatil Kapseln
  • Muco Panoral
  • Kefolor Suspension
  • (6R,7R)-7-((R)-2-Amino-2-phenylacetamido)-3-chloro-8-oxo-5-thia-1-azabicyclo(4.2.0)oct-2-ene-2-carboxylic acid monohydrate
  • Lilly 99638 hydrate
  • (6R,7R)-7-[[(2R)-2-amino-2-phenylacetyl]amino]-3-chloro-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid, hydrate
  • C15H16ClN3O5S
  • Compo
  • Di staclor
  • 70356-03-5 (hydrate)
  • Cefaclor (USP)
  • (6R,7R)-7-[(R)-2-Amino-2-phenylacetamido]-3-chloro-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid monohydrate
  • (6R,7R)-7-[[(2R)-2-Amino-2-phenylacetyl]amino]-3-chloro-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid monohydrate
  • Ceclor (TN)
  • Cefaclor
  • (6R,7R)-7-[(2-Amino-2-phenylacetyl)amino]-3-chloro-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic Acid Monohydrate
  • (6R,7R)-7-[(2R)-2-amino-2-phenylacetamido]-3-chloro-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid hydrate
  • (6R,7R)-7-[[(2R)-2-amino-2-phenyl-acetyl]amino]-3-chloro-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid, hydrate
  • (6R,7R)-7-{[(2R)-2-Amino-1-hydroxy-2-phenylethylidene]amino}-3-chloro-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid--water (1/1)
Show all 26 synonyms
  • 5-Thia-1-azabicyclo(4.2.0)oct-2-ene-2-carboxylic acid, 7-((aminophenylacetyl)amino)-3-chloro-8-oxo-, monohydrate, (6r-(6alpha,7beta(r*)))-

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
385.83 g/molcalc.
Exact mass
385.0499 Dacalc.
LogP (octanol/water)
-0.2calc.
Topological polar surface area
144.2 Ųcalc.
Hydrogen bond donors
3calc.
Hydrogen bond acceptors
5calc.
Rotatable bonds
4calc.
Heavy atoms
25calc.
Rings
3calc.
Aromatic rings
1calc.
Fraction sp3 carbons
0.27calc.
Formal charge
0calc.
Stereocentres
3calc.
Components
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, O=C(Cc1ccccc1)NC1C(=O)N2C=CCSC12

O=C(Cc1ccccc1)NC1C(=O)N2C=CCSC12

3 rings, 19 atoms.

98 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Warning
GHS07: Harmful or irritant
Harmful or irritant

Hazard statements

  • H319Causes serious eye irritation.
Precautionary statements (4)
  • P264 + P265Wash skin thoroughly after handling. Do not touch eyes.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P305 + P351 + P338If in eyes: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
  • P337 + P317If eye irritation persists: Get medical help.

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

Cefaclor monohydrate suppliers

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Where suppliers are based

15 suppliers in 6 countries

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Cefaclor monohydrate price

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Uses and applications

What the substance is used for, by industry and function

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

Frequently asked questions

Quick answers about Cefaclor monohydrate, based on the data on this page

What is Cefaclor monohydrate?

Cefaclor monohydrate is a chemical substance with the molecular formula C15H16ClN3O5S and a molar mass of 385.83 g/mol. Its CAS registry number is 70356-03-5. The IUPAC name is (6R,7R)-7-[[(2R)-2-amino-2-phenylacetyl]amino]-3-chloro-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid, hydrate.

What is the CAS number of Cefaclor monohydrate?

The CAS registry number of Cefaclor monohydrate is 70356-03-5.

What is the molecular formula and weight of Cefaclor monohydrate?

The molecular formula of Cefaclor monohydrate is C15H16ClN3O5S and its molar mass is 385.83 g/mol.

What is Cefaclor monohydrate used for?

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

Is Cefaclor monohydrate hazardous?

Cefaclor monohydrate carries the GHS signal word "Warning". Main hazards: causes serious eye irritation. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Cefaclor monohydrate?

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

Where can I buy Cefaclor monohydrate?

CompoundList lists 15 suppliers of Cefaclor monohydrate in China, United States, Bangladesh, Italy and 2 more. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

What is the price of Cefaclor monohydrate?

Suppliers quote Cefaclor monohydrate 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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