Molekula
Cephalexin hydrate
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 2000 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
Cephalexin hydrate is a semi-synthetic cephalosporin antibiotic used to treat bacterial infections. It is effective against a range of Gram-positive and some Gram-negative bacteria. Available with CAS number 15686-71-2, molecular formula C16H17N3O4S · xH2O, and molecular weight 347.39 g/mol. Store at 2 to 8 °C. Signal word: Danger. Molekula supplies Cephalexin hydrate 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
These pack sizes aren't a limit. Molekula manufactures, sources and repacks to order — if you need 500 kg and only see 1 kg listed, . We quote from grams to multi-tonne.
Need a different size? Add the nearest pack and change the size in your basket — we price it at the same rate per unit.
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5 g — $129.60 per pack
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 | A white or almost white crystalline powder |
| Water | 4 - 8% |
| Impurity B | ≤1.0% |
| Identification | Conforms to reference |
| pH | 4.0 - 5.5 |
| Solubility | Sparingly soluble in water, practically insoluble in ethanol (96%) |
| Assay | 95.0% to 103.0% |
| Sulphated Ash | ≤0.2% |
| Specific optical rotation | 149 - 158 |
| N,N-dimethylaniline | ≤20ppm |
| Total Impurities | ≤3.0% |
| Any other impurity | ≤1.0% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | 2 to 8 °C |
| Acidity | Neutral |
Identification
| Property | Value |
|---|---|
| SKU | 21740976 |
| CAS Number | 15686-71-2 |
| Molecular Formula | C16H17N3O4S · xH2O |
| Molecular Weight | 347.39 |
| SMILES | O=C(O)C1=C(C)CSC2N1C(=O)C2NC(=O)C(N)C=3C=CC=CC3 |
| REACH Code | Y110 |
| HTS Code | 29419030 |
| Tariff Code | 2941900000 |
Safety & GHS
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Health Hazard
GHS07
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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
- P261 Avoid breathing 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
- P333+313 IF skin irritation or a rash occurs: Get medical advice/attention
- P337+313 If eye irritation persists 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
No alternate names recorded for this product.
Frequently asked questions
What is cephalexin hydrate used for?
Cephalexin hydrate is a first-generation cephalosporin antibiotic used to treat bacterial infections such as respiratory tract infections, skin infections, and urinary tract infections.
What is the chemical formula and molecular weight of cephalexin hydrate?
The formula is C16H17N3O4S · xH2O with a molecular weight of 347.39 g/mol.
How should cephalexin hydrate be stored?
Store at 2 to 8 °C in a dry, dark place to maintain stability and prevent degradation.
What grade of cephalexin hydrate does Molekula supply?
Molekula supplies cephalexin hydrate in research grade, suitable for laboratory use.
Can Molekula supply cephalexin hydrate in bulk?
Yes, Molekula can supply cephalexin hydrate in bulk quantities—please contact us for pricing and availability.
What documentation comes with a cephalexin hydrate order?
Each order includes a Certificate of Analysis (CoA) and Safety Data Sheet (SDS) with the shipment.
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.