A0643350
RifamycinS , 97% , 13553-79-2
Synonym(s):
1,4-Dideoxy-1,4-dihydro-1,4-dioxorifamycin
CAS NO.：13553-79-2
Empirical Formula: C37H45NO12
Molecular Weight: 695.75
MDL number: MFCD06198807
EINECS: 236-938-4
| Pack Size | Price | Stock | Quantity |
| 250mg | RMB239.20 | In Stock |
|
| 1g | RMB421.60 | In Stock |
|
| 5g | RMB1975.20 | In Stock |
|
| 25g | RMB7903.20 | In Stock |
|
| others | Enquire |
Update time: 2022-07-08
PRODUCT 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 |
Description and Uses
Rifamycin S (Rifaximin EP Impurity E) is a semi-synthetic antibiotic.
Safety
| Symbol(GHS) |  GHS08 |
| Signal word | Warning |
| Hazard statements | H371 |
| Precautionary statements | P501-P260-P270-P264-P308+P311-P405 |
| RTECS | KD1925000 |
| HS Code | 2941.90.1050 |
| Toxicity | LD50 in mice (mg/kg): 122 i.v.; 258 i.p.; 3000 orally (Sensi, 1964) |
![(2S,12Z,14E,16S,17S,18R,19R,20R,21S,22R,23S,24E)-21-(Acetyloxy)-5,6,9,17,19-pentahydroxy-23-methoxy-2,4,12,16,18,20,22-heptamethyl-2,7-(epoxypentadeca[1,11,13]trienimino)naphtho[2,1-b]furan-1,11(2H)-dione](https://img.chemicalbook.com/CAS/GIF/6998-60-3.gif)
