Rifamycin S
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- $49 - $1208.7
- Product name: Rifamycin S
- CAS: 13553-79-2
- MF: C37H45NO12
- MW: 695.75
- EINECS:236-938-4
- MDL Number:MFCD06198807
- Synonyms:1,4-dideoxy-1,4-dihydro-1,4-dioxo-rifamycin;2,7-(epoxypentadeca(1,11,13)trienimino)naphtho(2,1-b)furan-1,6,9,11(2h)-tetron ;4-dideoxy-1,4-dihydro-1,4-dioxo-rifamycin ;RIFAMPICIN S;RIFAMYCIN S;5,17,19,21-tetrahydroxy-23-methoxy-2,4,12,16,18,20,22-heptamethyl-21-aceta ;nci144-130 ;rifomycins
30 prices
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Brand
- AvaChem
- Biorbyt Ltd
- Cayman Chemical
- ChemScene
- DC Chemicals
- Labseeker
- Matrix Scientific
- Medical Isotopes, Inc.
- Sigma-Aldrich
- TCI Chemical
- TRC
Package
- 50mg
- 500mg
- r0950000
- 25g
- 50g
- 100g
- 100 mg
- 10mg
- 100mg
- 1g
- 10g
- 250mg
- 5g
- 1mlx10mM(inDMSO)
- ManufacturerAvaChem
- Product number2016
- Product descriptionRifamycin S
- Packaging10mg
- Price$49
- Updated2021-12-16
- Buy
- ManufacturerAvaChem
- Product number2016
- Product descriptionRifamycin S
- Packaging100mg
- Price$95
- Updated2021-12-16
- Buy
- ManufacturerAvaChem
- Product number2016
- Product descriptionRifamycin S
- Packaging1g
- Price$149
- Updated2021-12-16
- Buy
- ManufacturerAvaChem
- Product number2016
- Product descriptionRifamycin S
- Packaging10g
- Price$690
- Updated2021-12-16
- Buy
- ManufacturerBiorbyt Ltd
- Product numberorb134751
- Product descriptionrifomycins >99%
- Packaging1g
- Price$1208.7
- Updated2021-12-16
- Buy
- ManufacturerBiorbyt Ltd
- Product numberorb134751
- Product descriptionrifomycins >99%
- Packaging250mg
- Price$615.4
- Updated2021-12-16
- Buy
- ManufacturerBiorbyt Ltd
- Product numberorb134751
- Product descriptionrifomycins >99%
- Packaging100mg
- Price$414.8
- Updated2021-12-16
- Buy
- ManufacturerBiorbyt Ltd
- Product numberorb1299013
- Product descriptionRifamycin S 98.76%(Mayvarybetweenbatches)
- Packaging1g
- Price$110
- Updated2026-05-06
- Buy
- ManufacturerBiorbyt Ltd
- Product numberorb1299013
- Product descriptionRifamycin S 98.76%(Mayvarybetweenbatches)
- Packaging5g
- Price$210
- Updated2026-05-06
- Buy
- ManufacturerBiorbyt Ltd
- Product numberorb1299013
- Product descriptionRifamycin S 98.76%(Mayvarybetweenbatches)
- Packaging1mlx10mM(inDMSO)
- Price$70
- Updated2026-05-06
- Buy
- ManufacturerBiorbyt Ltd
- Product numberorb1299013
- Product descriptionRifamycin S 98.76%(Mayvarybetweenbatches)
- Packaging500mg
- Price$80
- Updated2026-05-06
- Buy
- ManufacturerCayman Chemical
- Product number42178
- Product descriptionRifamycin S ≥95%
- Packaging100mg
- Price$87
- Updated2026-04-30
- Buy
- ManufacturerCayman Chemical
- Product number42178
- Product descriptionRifamycin S ≥95%
- Packaging250mg
- Price$141
- Updated2026-04-30
- Buy
- ManufacturerCayman Chemical
- Product number42178
- Product descriptionRifamycin S ≥95%
- Packaging1g
- Price$435
- Updated2026-04-30
- Buy
- ManufacturerCayman Chemical
- Product number42178
- Product descriptionRifamycin S ≥95%
- Packaging500mg
- Price$239
- Updated2026-04-30
- Buy
- ManufacturerChemScene
- Product numberCS-0090973
- Product descriptionRifamycin S 99.22%
- Packaging100mg
- Price$150
- Updated2021-12-16
- Buy
| Manufacturer | Product number | Product description | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|
| AvaChem | 2016 | Rifamycin S | 10mg | $49 | 2021-12-16 | Buy |
| AvaChem | 2016 | Rifamycin S | 100mg | $95 | 2021-12-16 | Buy |
| AvaChem | 2016 | Rifamycin S | 1g | $149 | 2021-12-16 | Buy |
| AvaChem | 2016 | Rifamycin S | 10g | $690 | 2021-12-16 | Buy |
| Biorbyt Ltd | orb134751 | rifomycins >99% | 1g | $1208.7 | 2021-12-16 | Buy |
| Biorbyt Ltd | orb134751 | rifomycins >99% | 250mg | $615.4 | 2021-12-16 | Buy |
| Biorbyt Ltd | orb134751 | rifomycins >99% | 100mg | $414.8 | 2021-12-16 | Buy |
| Biorbyt Ltd | orb1299013 | Rifamycin S 98.76%(Mayvarybetweenbatches) | 1g | $110 | 2026-05-06 | Buy |
| Biorbyt Ltd | orb1299013 | Rifamycin S 98.76%(Mayvarybetweenbatches) | 5g | $210 | 2026-05-06 | Buy |
| Biorbyt Ltd | orb1299013 | Rifamycin S 98.76%(Mayvarybetweenbatches) | 1mlx10mM(inDMSO) | $70 | 2026-05-06 | Buy |
| Biorbyt Ltd | orb1299013 | Rifamycin S 98.76%(Mayvarybetweenbatches) | 500mg | $80 | 2026-05-06 | Buy |
| Cayman Chemical | 42178 | Rifamycin S ≥95% | 100mg | $87 | 2026-04-30 | Buy |
| Cayman Chemical | 42178 | Rifamycin S ≥95% | 250mg | $141 | 2026-04-30 | Buy |
| Cayman Chemical | 42178 | Rifamycin S ≥95% | 1g | $435 | 2026-04-30 | Buy |
| Cayman Chemical | 42178 | Rifamycin S ≥95% | 500mg | $239 | 2026-04-30 | Buy |
| ChemScene | CS-0090973 | Rifamycin S 99.22% | 100mg | $150 | 2021-12-16 | Buy |
Properties
Melting point :179-181°C (dec.)
alpha :D20 +476° (c = 0.1 in methanol)
Boiling point :700.89°C (rough estimate)
Density :1.2387 (rough estimate)
refractive index :1.6630 (estimate)
storage temp. :-20°C Freezer
solubility :Benzene (Slightly), Chloroform (Slightly), Methanol (Slightly)
form :Solid
pka :3.85±0.70(Predicted)
color :Orange to Dark Orange
λmax :390nm(MeOH)(lit.)
Merck :14,8217
InChIKey :BTVYFIMKUHNOBZ-ODRIEIDWSA-N
SMILES :C1[C@H](C)[C@H](O)[C@@H](C)[C@H](O)[C@H](C)[C@H](C(=O)OC)[C@@H](C)[C@H](OC)C=CO[C@]2(C)C(=O)C3C4C(=O)C=C(NC(=O)C(C)=CC=1)C(=O)C=4C(O)=C(C)C=3O2 |c:38,t:21,40|
alpha :D20 +476° (c = 0.1 in methanol)
Boiling point :700.89°C (rough estimate)
Density :1.2387 (rough estimate)
refractive index :1.6630 (estimate)
storage temp. :-20°C Freezer
solubility :Benzene (Slightly), Chloroform (Slightly), Methanol (Slightly)
form :Solid
pka :3.85±0.70(Predicted)
color :Orange to Dark Orange
λmax :390nm(MeOH)(lit.)
Merck :14,8217
InChIKey :BTVYFIMKUHNOBZ-ODRIEIDWSA-N
SMILES :C1[C@H](C)[C@H](O)[C@@H](C)[C@H](O)[C@H](C)[C@H](C(=O)OC)[C@@H](C)[C@H](OC)C=CO[C@]2(C)C(=O)C3C4C(=O)C=C(NC(=O)C(C)=CC=1)C(=O)C=4C(O)=C(C)C=3O2 |c:38,t:21,40|
Safety Information
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| Signal word: | Warning | ||||||||||||||
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Description
Rifamycin S (Rifaximin EP Impurity E) is a semi-synthetic antibiotic.Related product price
- Rifamycin sodium salt
$12-453 - Rifamycin O
$19-1593.9 - 13929-35-6
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