Molekula
Ondansetron
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
Ondansetron is a serotonin 5-HT3 receptor antagonist used primarily to prevent nausea and vomiting caused by chemotherapy, radiation therapy, or surgery. It is available as a white to off-white powder. CAS: 99614-02-5, Molecular Formula: C18H19N3O, Molecular Weight: 293.36 g/mol, Storage: Ambient, Signal Word: Danger. Molekula supplies Ondansetron 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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1 g — £62.10 per pack ex VAT · £74.52 inc. VAT
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5 g — £245.70 per pack ex VAT · £294.84 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 to off-white powder |
| Melting Point | 225 - 229 ℃ |
| Heavy metals | ≤10ppm |
| Single Impurity | ≤0.20% |
| Loss on Drying | ≤0.5% |
| Assay | ≥99.0% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Transport Class | 6.1 |
| Packing Group | III |
| Acidity | Neutral |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Melting Point | 231-232 °C |
| Water Solubility | Sparingly soluble in water |
| Solubility (other solvents) | Very soluble in acid solutions |
Source: PubChem CID 4595 (HSDB)
Identification
| Property | Value |
|---|---|
| SKU | 23738305 |
| CAS Number | 99614-02-5 |
| IUPAC Name | 9-methyl-3-[(2-methylimidazol-1-yl)methyl]-2,3-dihydro-1H-carbazol-4-one |
| Molecular Formula | C18H19N3O |
| Molecular Weight | 293.36 |
| Exact Mass | 293.1528 |
| SMILES | CC1=NC=CN1CC2CCC3=C(C2=O)C4=CC=CC=C4N3C |
| InChIKey | FELGMEQIXOGIFQ-UHFFFAOYSA-N |
| InChI | InChI=1S/C18H19N3O/c1-12-19-9-10-21(12)11-13-7-8-16-17(18(13)22)14-5-3-4-6-15(14)20(16)2/h3-6,9-10,13H,7-8,11H2,1-2H3 |
| PubChem CID | 4595 |
| UN Number | UN2811 |
| REACH Code | Y110 |
| HTS Code | 29332990 |
| Tariff Code | 2933299090 |
Safety & GHS
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Corrosive
GHS05
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Toxic
GHS06
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Health Hazard
GHS07
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Serious Health Hazard
GHS08
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Hazardous to the Environment
GHS09
Hazard statements
- H301 Toxic if swallowed
- H315 Causes skin irritation
- H318 Causes serious eye damage
- H362 May cause harm to breast-fed children
- H400 Very toxic to aquatic life
- H410 Very toxic to aquatic life with long lasting effects
Precautionary statements
- P263 Avoid contact during pregnancy/while nursing
- P270 Do not eat, drink or smoke when using this product
- P273 Avoid release to the environment
- P301+310 IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician
- P302+352 IF ON SKIN: Wash with soap and water
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
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
- 9-methyl-3-[(2-methylimidazol-1-yl)methyl]-2,3-dihydro-1H-carbazol-4-one
- Monohydrochloride Dihydrate, Ondansetron
- Monohydrochloride, Ondansetron
- Odansetron (common misspelling of ondansetron)
- Ondansetron ODT
- ondansetronum
- ondasetron
- Zofran ODT
- Zudan
- Zuplenz
Frequently asked questions
What is Ondansetron used for?
Ondansetron is primarily used to prevent nausea and vomiting caused by chemotherapy, radiation therapy, or surgery.
What is the chemical formula and molecular weight of Ondansetron?
The chemical formula is C18H19N3O with a molecular weight of 293.36 g/mol.
How should Ondansetron be stored?
Ondansetron should be stored at ambient temperature, away from moisture and light.
What grade of Ondansetron does Molekula supply?
Molekula supplies Ondansetron in research grade.
Can Molekula supply Ondansetron in bulk quantities?
Yes, Molekula can supply Ondansetron in bulk quantities—please contact our sales team for pricing and availability.
What documentation comes with an order of Ondansetron?
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.