Rifamycin S
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- $21 - $1694
- Product name: Rifamycin S
- CAS: 13553-79-2
- MF: C37H45NO12
- MW: 695.75
- EINECS:236-938-4
- MDL Number:MFCD06198807
- Synonyms: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 ;5,17,19,21-Tetrahydroxy-23-Methoxy-2,4,12,16,18,20,22-heptaMethyl-2,7-(epoxypentadeca[1,11,13]trieniMino)naphtho[2,1-b]furan-1,6,9,11(2H)-tetrone 21-Acetate
68 prices
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Brand
- aablocks
- ACHEMBLOCK
- AK Scientific
- Arctom
- AvaChem
- Biorbyt Ltd
- Biosynth
- Cayman Chemical
- Chem-Impex
- ChemScene
- DC Chemicals
- Labseeker
- Matrix Scientific
- Medical Isotopes, Inc.
- Sigma-Aldrich
- TCI Chemical
- TRC
Package
- 25mg
- 100mg
- 250mg
- 1mlx10mM(inDMSO)
- 50mg
- r0950000
- 10mg
- 500mg
- 1G
- 2g
- 5G
- 10g
- 25g
- 50g
- 100g
- 500g
- 100 mg
- Manufactureraablocks
- Product numberAA0035HS
- Product descriptionRifamycin, 1,4-dideoxy-1,4-dihydro-1,4-dioxo- 98%
- Packaging100mg
- Price$32
- Updated2026-05-28
- Buy
- Manufactureraablocks
- Product numberAA0035HS
- Product descriptionRifamycin, 1,4-dideoxy-1,4-dihydro-1,4-dioxo- 97%
- Packaging25g
- Price$41
- Updated2026-05-28
- Buy
- Manufactureraablocks
- Product numberAA0035HS
- Product descriptionRifamycin, 1,4-dideoxy-1,4-dihydro-1,4-dioxo- 97%
- Packaging100g
- Price$109
- Updated2026-05-28
- Buy
- ManufacturerACHEMBLOCK
- Product numberO32538
- Product descriptionRifampicin S 98%
- Packaging1G
- Price$150
- Updated2026-05-25
- Buy
- ManufacturerACHEMBLOCK
- Product numberO32538
- Product descriptionRifampicin S 98%
- Packaging1G
- Price$150
- Updated2026-05-27
- Buy
- ManufacturerACHEMBLOCK
- Product numberO32538
- Product descriptionRifampicin S 98%
- Packaging5G
- Price$450
- Updated2026-05-25
- Buy
- ManufacturerACHEMBLOCK
- Product numberO32538
- Product descriptionRifampicin S 98%
- Packaging5G
- Price$450
- Updated2026-05-27
- Buy
- ManufacturerACHEMBLOCK
- Product numberO32538
- Product descriptionRifampicin S 98%
- Packaging100MG
- Price$45
- Updated2026-05-25
- Buy
- ManufacturerACHEMBLOCK
- Product numberO32538
- Product descriptionRifampicin S 98%
- Packaging100MG
- Price$45
- Updated2026-05-27
- Buy
- ManufacturerAK Scientific
- Product numberJ50015
- Product descriptionRifampicin S 95%
- Packaging100mg
- Price$21
- Updated2026-06-04
- Buy
- ManufacturerAK Scientific
- Product numberH730
- Product descriptionRifampicin S 98%
- Packaging100mg
- Price$28
- Updated2026-06-04
- Buy
- ManufacturerAK Scientific
- Product numberJ50015
- Product descriptionRifampicin S 95%
- Packaging1g
- Price$54
- Updated2026-06-04
- Buy
- ManufacturerAK Scientific
- Product numberH730
- Product descriptionRifampicin S 98%
- Packaging1g
- Price$73
- Updated2026-06-04
- Buy
- ManufacturerAK Scientific
- Product numberH730
- Product descriptionRifampicin S 98%
- Packaging5g
- Price$216
- Updated2026-06-04
- Buy
- ManufacturerAK Scientific
- Product numberJ50015
- Product descriptionRifampicin S 95%
- Packaging5g
- Price$158
- Updated2026-06-04
- Buy
- ManufacturerArctom
- Product numberSLK-S4425
- Product descriptionRifamycin S 99.41%
- Packaging25mg
- Price$140
- Updated2026-05-26
- Buy
| Manufacturer | Product number | Product description | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|
| aablocks | AA0035HS | Rifamycin, 1,4-dideoxy-1,4-dihydro-1,4-dioxo- 98% | 100mg | $32 | 2026-05-28 | Buy |
| aablocks | AA0035HS | Rifamycin, 1,4-dideoxy-1,4-dihydro-1,4-dioxo- 97% | 25g | $41 | 2026-05-28 | Buy |
| aablocks | AA0035HS | Rifamycin, 1,4-dideoxy-1,4-dihydro-1,4-dioxo- 97% | 100g | $109 | 2026-05-28 | Buy |
| ACHEMBLOCK | O32538 | Rifampicin S 98% | 1G | $150 | 2026-05-25 | Buy |
| ACHEMBLOCK | O32538 | Rifampicin S 98% | 1G | $150 | 2026-05-27 | Buy |
| ACHEMBLOCK | O32538 | Rifampicin S 98% | 5G | $450 | 2026-05-25 | Buy |
| ACHEMBLOCK | O32538 | Rifampicin S 98% | 5G | $450 | 2026-05-27 | Buy |
| ACHEMBLOCK | O32538 | Rifampicin S 98% | 100MG | $45 | 2026-05-25 | Buy |
| ACHEMBLOCK | O32538 | Rifampicin S 98% | 100MG | $45 | 2026-05-27 | Buy |
| AK Scientific | J50015 | Rifampicin S 95% | 100mg | $21 | 2026-06-04 | Buy |
| AK Scientific | H730 | Rifampicin S 98% | 100mg | $28 | 2026-06-04 | Buy |
| AK Scientific | J50015 | Rifampicin S 95% | 1g | $54 | 2026-06-04 | Buy |
| AK Scientific | H730 | Rifampicin S 98% | 1g | $73 | 2026-06-04 | Buy |
| AK Scientific | H730 | Rifampicin S 98% | 5g | $216 | 2026-06-04 | Buy |
| AK Scientific | J50015 | Rifampicin S 95% | 5g | $158 | 2026-06-04 | Buy |
| Arctom | SLK-S4425 | Rifamycin S 99.41% | 25mg | $140 | 2026-05-26 | 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
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Rifamycin O
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13929-35-6
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