Molekula
Fidaxomicin
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
Fidaxomicin is a macrocyclic antibiotic used primarily in the treatment of Clostridioides difficile infection. It functions by inhibiting bacterial RNA polymerase, offering targeted activity with reduced disruption to gut microbiota. Available with CAS number 873857-62-6, its molecular formula is C52H74Cl2O18 and molecular weight is 1058.04 g/mol. Store at 2 to 8 °C. Signal word: Warning. Molekula supplies Fidaxomicin 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 — £93.50 per pack ex VAT · £112.20 inc. VAT
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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
Specifications available on request — see Documents below or contact our sales team.
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | 2 to 8 °C |
| Transport Class | Not regulated |
| Acidity | Neutral |
Identification
| Property | Value |
|---|---|
| SKU | 90018462 |
| CAS Number | 873857-62-6 |
| IUPAC Name | [(2R,3S,4S,5S,6R)-6-[[(3E,5E,8S,9E,11S,12R,13E,15E,18S)-12-[(2R,3S,4R,5S)-3,4-dihydroxy-6,6-dimethyl-5-(2-methylpropanoyloxy)oxan-2-yl]oxy-11-ethyl-8-hydroxy-18-[(1R)-1-hydroxyethyl]-9,13,15-trimethyl-2-oxo-1-oxacyclooctadeca-3,5,9,13,15-pentaen-3-yl]methoxy]-4-hydroxy-5-methoxy-2-methyloxan-3-yl] 3,5-dichloro-2-ethyl-4,6-dihydroxybenzoate |
| EC Number | 692-555-6 |
| Molecular Formula | C52H74Cl2O18 |
| Molecular Weight | 1058.04 |
| Exact Mass | 1056.4252 |
| SMILES | CC[C@H]1/C=C(/[C@H](C/C=C/C=C(/C(=O)O[C@@H](C/C=C(/C=C(/[C@@H]1O[C@H]2[C@H]([C@H]([C@@H](C(O2)(C)C)OC(=O)C(C)C)O)O)\C)\C)[C@@H](C)O)\CO[C@H]3[C@H]([C@H]([C@@H]([C@H](O3)C)OC(=O)C4=C(C(=C(C(=C4O)Cl)O)Cl)CC)O)OC)O)\C |
| InChIKey | ZVGNESXIJDCBKN-UUEYKCAUSA-N |
| InChI | InChI=1S/C52H74Cl2O18/c1-13-30-22-26(6)33(56)18-16-15-17-31(23-66-51-45(65-12)42(61)44(29(9)67-51)69-49(64)35-32(14-2)36(53)39(58)37(54)38(35)57)48(63)68-34(28(8)55)20-19-25(5)21-27(7)43(30)70-50-41(60)40(59)46(52(10,11)72-50)71-47(62)24(3)4/h15-17,19,21-22,24,28-30,33-34,40-46,50-51,55-61H,13-14,18,20,23H2,1-12H3/b16-15+,25-19+,26-22+,27-21+,31-17+/t28-,29-,30+,33+,34+,40-,41+,42+,43+,44-,45+,46+,50-,51-/m1/s1 |
| PubChem CID | 10034073 |
| UN Number | UN1 |
| HTS Code | 2941.90.5090 |
| Tariff Code | 2941900000 |
Safety & GHS
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Health Hazard
GHS07
Hazard statements
- H302 Harmful if swallowed
Precautionary statements
- P264 Wash thoroughly after handling
- P270 Do not eat, drink or smoke when using this product
- P301+P312 IF SWALLOWED: Call a POISON CENTER or doctor/physician if you feel unwell
- P330 Rinse mouth
- P501 Dispose of contents/container to an approved waste disposal plant
Documents
Safety Data Sheets (SDS)
Available in English, German, Spanish, French, Italian, Portuguese, Arabic, Dutch.
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
- Dificid
- Dificlir
- Difimicin
- Fidaxomicina
- fidaxomicine
- Lipiarmicin
- Lipiarmycin A3
- OPT 80
- PAR 101
- Tiacumicin B
Frequently asked questions
What is fidaxomicin used for?
Fidaxomicin is an antibiotic used primarily to treat Clostridioides difficile infections, particularly in cases of recurrent or severe diarrhea.
What is the chemical formula and molecular weight of fidaxomicin?
The chemical formula of fidaxomicin is C52H74Cl2O18, with a molecular weight of 1058.04 g/mol.
How should fidaxomicin be stored?
Fidaxomicin should be stored at 2 to 8 °C and protected from light and moisture.
What grade of fidaxomicin is available?
Fidaxomicin is available in research-grade purity suitable for laboratory use.
Can Molekula supply fidaxomicin in bulk?
Yes, Molekula can supply fidaxomicin in bulk quantities—please contact our sales team for pricing and availability.
What documentation comes with a fidaxomicin order?
Each order includes a Certificate of Analysis (CoA) and safety data sheet (SDS); additional documentation is available 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.