Molekula
Tamoxifen
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
Tamoxifen is a selective estrogen receptor modulator used in the treatment and prevention of hormone receptor-positive breast cancer. It is also used in research for studying estrogen signaling. Available with CAS number 10540-29-1, molecular formula C26H29NO, and molecular weight 371.51 g/mol. Store at -15 to -20 °C. Hazard classification includes signal word Danger. Molekula supplies Tamoxifen 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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100 mg — £54.00 per pack ex VAT · £64.80 inc. VAT
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1 g — £155.40 per pack ex VAT · £186.48 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 / off white powder |
| Melting Point | 97.0 - 99.0°C |
| Heavy metals | ≤0.01% |
| Loss on Drying | ≤0.5% |
| Assay (HPLC) | ≥99.0% |
| Iron (Fe) | ≤0.01% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | -15 to -20 °C |
| Transport Class | 9 |
| Packing Group | III |
| Acidity | Base |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Melting Point | 97 °C |
| pKa | pKa = 8.48 |
Source: PubChem CID 2733526 (DrugBank, ChEMBL)
Identification
| Property | Value |
|---|---|
| SKU | 15067214 |
| CAS Number | 10540-29-1 |
| IUPAC Name | 2-[4-[(Z)-1,2-diphenylbut-1-enyl]phenoxy]-N,N-dimethylethanamine |
| EC Number | 234-118-0 |
| Molecular Formula | C6H5C(C2H5)=C(C6H5)C6H4OCH2CH2N(CH3)2 |
| Molecular Weight | 371.51 |
| Exact Mass | 371.2249 |
| SMILES | CC/C(=C(\C1=CC=CC=C1)/C2=CC=C(C=C2)OCCN(C)C)/C3=CC=CC=C3 |
| InChIKey | NKANXQFJJICGDU-QPLCGJKRSA-N |
| InChI | InChI=1S/C26H29NO/c1-4-25(21-11-7-5-8-12-21)26(22-13-9-6-10-14-22)23-15-17-24(18-16-23)28-20-19-27(2)3/h5-18H,4,19-20H2,1-3H3/b26-25- |
| PubChem CID | 2733526 |
| UN Number | UN3077 |
| REACH Code | Y110 |
| HTS Code | 2922199619 |
| Tariff Code | 2922190090 |
Safety & GHS
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Health Hazard
GHS07
-
Serious Health Hazard
GHS08
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Hazardous to the Environment
GHS09
Hazard statements
- H302 Harmful if swallowed
- H341 Suspected of causing genetic defects
- H350 May cause cancer
- H360FD May damage fertility. May damage the unborn child.
- H362 May cause harm to breast-fed children
- H410 Very 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, 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
- Citofen
- Crisafeno
- Diemon
- Istubol
- Oncomox
- Retaxim
- Tamizam
- Tamoxifene
- Tamoxifeno
- trans-Tamoxifen
Frequently asked questions
What is Tamoxifen used for?
Tamoxifen is primarily used in the treatment and prevention of estrogen receptor-positive breast cancer. It is also used in research for studying estrogen receptor activity.
What is the chemical formula and molecular weight of Tamoxifen?
The formula is C26H29NO and the molecular weight is 371.51 g/mol.
How should Tamoxifen be stored?
Tamoxifen should be stored at temperatures between -15 and -20 °C to maintain stability and prevent degradation.
What grade of Tamoxifen does Molekula supply?
Molekula supplies Tamoxifen in research-grade purity, suitable for laboratory use.
Can Molekula supply Tamoxifen in bulk quantities?
Yes, Molekula can supply Tamoxifen in bulk quantities—please contact our sales team for pricing and availability.
What documentation comes with a Tamoxifen 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.