Molekula
Clozapine
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
Clozapine is an antipsychotic medication used primarily in the treatment of schizophrenia, particularly in cases resistant to other therapies. It is a dibenzodiazepine derivative with a high affinity for multiple neurotransmitter receptors. Available in powder form, it has a molecular formula of C18H19ClN4, a molecular weight of 326.82 g/mol, and must be stored at 2 to 8 °C. The substance is classified as dangerous. Molekula supplies Clozapine 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.
-
25 mg — £86.80 per pack ex VAT · £104.16 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 | Yellow crystalline powder |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | 2 to 8 °C |
| Flash Point | 19 °C |
| Transport Class | 6.1 |
| Packing Group | III |
| Acidity | Neutral |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Melting Point | 183-184 °C |
| pKa | pKa = 7.5 |
| log P (octanol/water) | 3.23 |
Source: PubChem CID 135398737 (HSDB, DrugBank)
Identification
| Property | Value |
|---|---|
| SKU | 66826682 |
| CAS Number | 5786-21-0 |
| IUPAC Name | 3-chloro-6-(4-methylpiperazin-1-yl)-11H-benzo[b][1,4]benzodiazepine |
| EC Number | 227-313-7 |
| Molecular Formula | C18H19ClN4 |
| Molecular Weight | 326.82 |
| Exact Mass | 326.1298 |
| SMILES | CN1CCN(CC1)C2=NC3=C(C=CC(=C3)Cl)NC4=CC=CC=C42 |
| InChIKey | QZUDBNBUXVUHMW-UHFFFAOYSA-N |
| InChI | InChI=1S/C18H19ClN4/c1-22-8-10-23(11-9-22)18-14-4-2-3-5-15(14)20-16-7-6-13(19)12-17(16)21-18/h2-7,12,20H,8-11H2,1H3 |
| PubChem CID | 135398737 |
| UN Number | UN2811 |
| REACH Code | Y110 |
| HTS Code | 29335995 |
| Tariff Code | 2933599590 |
Safety & GHS
-
Toxic
GHS06
-
Serious Health Hazard
GHS08
-
Hazardous to the Environment
GHS09
Hazard statements
- H301 Toxic if swallowed
- H341 Suspected of causing genetic defects
- H361 Suspected of damaging fertility or the unborn child
- H372 Causes damage to organs through prolonged or repeated exposure
- H411 Toxic to aquatic life with long lasting effects
Precautionary statements
- P201 Obtain special instructions before use
- 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
- P501 Dispose of contents/container to an approved waste disposal plant
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, Portuguese, 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
- 8-Chloro-11-(4-methyl-1-piperazinyl)-5H-dibenzo[b,e][1,4]diazepine
- Clorazil
- Clozapin
- Clozapina
- Clozapinum
- CLOZARIL
- Fazaclo
- Fazaclo ODT
- HF 1854
- Leponex
Frequently asked questions
What is clozapine used for?
Clozapine is an antipsychotic medication primarily used to treat schizophrenia, especially in cases that do not respond to other treatments.
What is the chemical formula and molecular weight of clozapine?
The chemical formula of clozapine is C18H19ClN4, and its molecular weight is 326.82 g/mol.
How should clozapine be stored?
Clozapine should be stored at 2 to 8 °C and protected from light and moisture.
What grade of clozapine does Molekula supply?
Molekula supplies clozapine in research-grade quality for laboratory use.
Can Molekula supply clozapine in bulk quantities?
Yes, Molekula can supply clozapine in bulk quantities—please contact our sales team for pricing and availability.
What documentation comes with a clozapine order?
Each order includes a Certificate of Analysis (CoA) and Safety Data Sheet (SDS); additional documentation can be provided upon request.
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.