Molekula
Roxithromycin
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
Roxithromycin is a semi-synthetic macrolide antibiotic used to treat bacterial infections, including respiratory and skin infections. It functions by inhibiting bacterial protein synthesis. Available in powder form with a molecular weight of 837.05 g/mol, CAS number 80214-83-1, and molecular formula C41H76N2O15. Store at ambient temperature. Hazard classification includes signal word Danger. Molekula supplies Roxithromycin 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 — £40.10 per pack ex VAT · £48.12 inc. VAT
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5 g — £122.70 per pack ex VAT · £147.24 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 crystalline powder |
| Water | <3.0% |
| Heavy metals | <10ppm |
| Identification | Conforms to reference |
| pH | 8 - 10.5 |
| Assay | >95% |
| Related Substances | A) <1.0% B) <5% |
| Specific optical rotation | -84 to -94 |
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 |
|---|---|
| pKa | pKa = 9.27 |
Source: PubChem CID 6915744 (ChEMBL)
Identification
| Property | Value |
|---|---|
| SKU | 24994173 |
| CAS Number | 80214-83-1 |
| IUPAC Name | (3R,4S,5S,6R,7R,9R,10E,11S,12R,13S,14R)-6-[(2S,3R,4S,6R)-4-(dimethylamino)-3-hydroxy-6-methyloxan-2-yl]oxy-14-ethyl-7,12,13-trihydroxy-4-[(2R,4R,5S,6S)-5-hydroxy-4-methoxy-4,6-dimethyloxan-2-yl]oxy-10-(2-methoxyethoxymethoxyimino)-3,5,7,9,11,13-hexamethyl-oxacyclotetradecan-2-one |
| Molecular Formula | C41H76N2O15 |
| Molecular Weight | 837.05 |
| Exact Mass | 836.5246 |
| SMILES | CC[C@@H]1[C@@]([C@@H]([C@H](/C(=N/OCOCCOC)/[C@@H](C[C@@]([C@@H]([C@H]([C@@H]([C@H](C(=O)O1)C)O[C@H]2C[C@@]([C@H]([C@@H](O2)C)O)(C)OC)C)O[C@H]3[C@@H]([C@H](C[C@H](O3)C)N(C)C)O)(C)O)C)C)O)(C)O |
| InChIKey | RXZBMPWDPOLZGW-XMRMVWPWSA-N |
| InChI | InChI=1S/C41H76N2O15/c1-15-29-41(10,49)34(45)24(4)31(42-53-21-52-17-16-50-13)22(2)19-39(8,48)36(58-38-32(44)28(43(11)12)18-23(3)54-38)25(5)33(26(6)37(47)56-29)57-30-20-40(9,51-14)35(46)27(7)55-30/h22-30,32-36,38,44-46,48-49H,15-21H2,1-14H3/b42-31+/t22-,23-,24+,25+,26-,27+,28+,29-,30+,32-,33+,34-,35+,36-,38+,39-,40-,41-/m1/s1 |
| PubChem CID | 6915744 |
| UN Number | UN2811 |
| REACH Code | Y110 |
| HTS Code | 29419050 |
| Tariff Code | 2941900000 |
Safety & GHS
-
Toxic
GHS06
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Serious Health Hazard
GHS08
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Hazardous to the Environment
GHS09
Hazard statements
- H301 Toxic if swallowed
- H361 Suspected of damaging fertility or the unborn child
- H362 May cause harm to breast-fed children
- H372 Causes damage to organs through prolonged or repeated exposure
- H400 Very toxic to aquatic life
- 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
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
- 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
- (9E)-erythromycin 9-(O-((2-methoxyethoxy)methyl)oxime)
- Erythromycin, 9-(O-((2-methoxyethoxy)methyl)oxime), (9E)-
- Infectoroxit
- Roxi-paed 1A Pharma
- Roxitromycin
- Roxitromycine
- RU 28965
- RU 965
- Rulid
- Rulide
Frequently asked questions
What is Roxithromycin used for?
Roxithromycin is a macrolide antibiotic used to treat bacterial infections such as respiratory tract infections, skin infections, and sexually transmitted infections.
What is the chemical formula and molecular weight of Roxithromycin?
The chemical formula is C41H76N2O15 and the molecular weight is 837.05 g/mol.
How should Roxithromycin be stored?
Roxithromycin should be stored at ambient temperature, protected from moisture and light.
What grade of Roxithromycin is available?
Roxithromycin is available in pharmaceutical grade for research and development use.
Can Molekula supply Roxithromycin in bulk?
Yes, Molekula can supply Roxithromycin in bulk quantities—please contact our sales team for pricing and availability.
What documentation comes with a purchase of Roxithromycin?
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.