Molekula
Cycloheximide
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
Cycloheximide is an antibiotic and protein synthesis inhibitor that acts on eukaryotic (80S) ribosomes, used in molecular biology, microbiology, and cell culture research to study protein translation, for example in cycloheximide chase assays to measure protein half-lives, and as a selective agent in microbiological media to suppress fungal growth so that bacteria can be isolated. It is also employed in plant pathology and veterinary applications. This chemical has a CAS number of 66-81-9, molecular formula C15H23NO4, and a molecular weight of 281.3474 g/mol. Store at 2 to 8°C. The signal word is Danger, indicating hazardous properties requiring careful handling. Molekula supplies Cycloheximide 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.
Often bought together
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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1 g — £38.90 per pack ex VAT · £46.68 inc. VAT
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5 g — £171.30 per pack ex VAT · £205.56 inc. VAT
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 or off-white crystalline powder |
| Melting Point | 116 - 121 °C |
| Water | ≤0.3% |
| Impurity | ≤2.00% |
| Identification | Conforms to reference |
| Solubility | Dissolves in chloroform, methanol and ethanol |
| Assay | ≥98% |
| Residue on Ignition | ≤0.2% |
| Specific optical rotation | -26 to -32°C (1% in ChCL3 @20°C) |
| Potency | ≥980ug/mg |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | 2 to 8 °C |
| Transport Class | 6.1 |
| Packing Group | I |
| Acidity | Neutral |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Appearance | Crystals |
| Melting Point | 119.5-121 °C |
| Water Solubility | 0.00021 mg/L at 25 °C |
| Vapour Pressure | 0.006 mmHg at 25 °C |
| log P (octanol/water) | 0.55 |
Source: PubChem CID 6197 (HSDB, ICSC, PAC Chemical Database)
Identification
| Property | Value |
|---|---|
| SKU | 15065373 |
| CAS Number | 66-81-9 |
| IUPAC Name | 4-[(2R)-2-[(1S,3S,5S)-3,5-dimethyl-2-oxocyclohexyl]-2-hydroxyethyl]piperidine-2,6-dione |
| EC Number | 200-636-0 |
| Molecular Formula | C15H23NO4 |
| Molecular Weight | 281.3474 |
| Exact Mass | 281.1627 |
| SMILES | C[C@H]1C[C@@H](C(=O)[C@@H](C1)[C@@H](CC2CC(=O)NC(=O)C2)O)C |
| InChIKey | YPHMISFOHDHNIV-FSZOTQKASA-N |
| InChI | InChI=1S/C15H23NO4/c1-8-3-9(2)15(20)11(4-8)12(17)5-10-6-13(18)16-14(19)7-10/h8-12,17H,3-7H2,1-2H3,(H,16,18,19)/t8-,9-,11-,12+/m0/s1 |
| PubChem CID | 6197 |
| UN Number | UN2811 |
| REACH Code | Y110 |
| HTS Code | 29419010 |
| Tariff Code | 2941900000 |
Safety & GHS
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Toxic
GHS06
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Serious Health Hazard
GHS08
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Hazardous to the Environment
GHS09
Hazard statements
- H300 Fatal if swallowed
- H341 Suspected of causing genetic defects
- H360D May harm the unborn child
- H411 Toxic to aquatic life with long lasting effects
Precautionary statements
- P260 Do not breathe dust/fume/gas/mist/vapours/spray
- P263 Avoid contact during pregnancy/while nursing
- P273 Avoid release to the environment
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P301+310 IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician
- 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
- Acti-Aid
- Actidion
- ACTIDIONE
- Actidone
- Cicloheximide
- Hizarocin
- Kaken
- Naramycin
- NARAMYCIN A
- Neocycloheximide
Frequently asked questions
What is cycloheximide commonly used for?
Cycloheximide is primarily used as a research tool to inhibit protein synthesis in eukaryotic cells, often in cell culture and molecular biology studies.
What is the chemical formula and molecular weight of cycloheximide?
The chemical formula is C15H23NO4 and the molecular weight is 281.3474 g/mol.
How should cycloheximide be stored?
Store cycloheximide at 2 to 8°C in a tightly sealed container, protected from light and moisture.
What grades of cycloheximide does Molekula supply?
Molekula supplies cycloheximide in analytical and biochemical research grades, suitable for laboratory applications.
Can Molekula supply cycloheximide in bulk quantities?
Yes, Molekula can provide cycloheximide in bulk, subject to availability and order requirements—please contact us for pricing and lead times.
What documentation comes with a cycloheximide 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.