Molekula
Cefaclor
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 1999 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
Cefaclor is a second-generation cephalosporin antibiotic used to treat bacterial infections, including respiratory, urinary, and skin infections. It works by inhibiting bacterial cell wall synthesis, making it effective against a broad spectrum of Gram-positive and Gram-negative bacteria. This chemical has a CAS number of 53994-73-3, a molecular formula of C15H14ClN3O4S, and a molecular weight of 367.81 g/mol. It must be stored between 2 to 8°C and is classified with a signal word of "Danger." Molekula supplies Cefaclor from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
Pack sizes & pricing
Pricing on request — packs available from research to bulk quantities.
Need a different quantity or pack?
Tell us how much you need and when — drums, IBCs, sacks or a one-off bulk lot. We'll manufacture or source it and come back with a price.
Prices exclude VAT/sales tax and shipping.
Specifications
| Property | Value |
|---|---|
| Appearance | white to slightly yellow powder or crystalline powder |
| Water | 3.0 - 6.5% |
| Identification | Conforms to reference |
| pH | 3.0 - 4.5 (25 mg/ml) |
| Individual impurity | ≤ 0.5% |
| Total Impurities | ≤ 2.0% |
| Residual Solvents: Methanol | ≤ 0.3% |
| Assay (Anhydrous) | ≥ 95.0% |
| Residual Solvents: Acetone | ≤ 0.5% |
| Residual Solvents: DMF | ≤ 0.088% |
| Residual solvents: Methylene chloride | ≤ 0.06% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | 2 to 8 °C |
| Acidity | Acid |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Melting Point | 327 °C |
Source: PubChem CID 51039 (DrugBank)
Identification
| Property | Value |
|---|---|
| SKU | 90038065 |
| CAS Number | 53994-73-3 |
| 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 |
| EC Number | 258-909-5 |
| Molecular Formula | C15H14ClN3O4S |
| Molecular Weight | 367.81 |
| Exact Mass | 367.0394 |
| SMILES | C1C(=C(N2[C@H](S1)[C@@H](C2=O)NC(=O)[C@@H](C3=CC=CC=C3)N)C(=O)O)Cl |
| InChIKey | QYIYFLOTGYLRGG-GPCCPHFNSA-N |
| InChI | InChI=1S/C15H14ClN3O4S/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)/t9-,10-,14-/m1/s1 |
| PubChem CID | 51039 |
| REACH Code | Y110 |
| HTS Code | 29419000 |
| Tariff Code | 2941900000 |
Safety & GHS
-
Serious Health Hazard
GHS08
Hazard statements
- H317 May cause an allergic skin reaction
- H334 May cause allergy or asthma symptoms or breathing difficulties if inhaled
Precautionary statements
- P260 Do not breathe dust/fume/gas/mist/vapours/spray
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P302+352 IF ON SKIN: Wash with soap and water
- P304+340 IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing
- P308+313 IF exposed or concerned: Get medical advice/attention
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, Spanish.
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Synonyms
- 3-Chloro-7-D-(2-phenylglycinamido)-3-cephem-4-carboxylic acid
- Ceclor
- Ceclor CD
- Cefaclor anhydrous
- Cefaclorum
- Cephaclor
- Keftid
- Lilly 99638
- Raniclor
- S 6472
Frequently asked questions
What is cefaclor used for?
Cefaclor is a second-generation cephalosporin antibiotic used to treat bacterial infections such as bronchitis, pneumonia, and urinary tract infections.
What is the chemical formula and molecular weight of cefaclor?
The chemical formula is **C₁₅H₁₄ClN₃O₄S** and the molecular weight is **367.81 g/mol**.
How should cefaclor be stored?
Store cefaclor at **2–8°C** in a dry, well-ventilated area, protected from light and moisture.
What grades or purity levels of cefaclor does Molekula supply?
Molekula supplies **pharmaceutical-grade (USP/EP/BP compliant) cefaclor** for research, development, and manufacturing applications.
Can Molekula supply cefaclor in bulk quantities?
Yes, Molekula can provide cefaclor in bulk, with quantities tailored to your project requirements—contact us for pricing and availability.
What documentation comes with a cefaclor order?
Each order includes a **Certificate of Analysis (CoA)**, **Material Safety Data Sheet (MSDS)**, and **batch-specific documentation** for traceability.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.