Name | Rifamycin O |
Synonyms | ctone NSC 182391 Rifamycin O Rifomycin O Rifaximin impurity F (EP) Rifaximin Impurity 6 (Rifaximin EP Impurity F) 4-O-(CARBOXYMETHYL)-1-DEOXY-1,4-diHYDRO-4-HYDROXY-1-OXO-G-LACTONE 4-O-Carboxymethyl-1-deoxy-1,4-dihydro-4-hydroxy-1-oxorifamycin γ-lactone spiro(1,3-dioxolane-2,9'(6'h)-(2,7)(epoxypentadeca(1,11,13)trienimino)naphtho( |
CAS | 14487-05-9 |
EINECS | 238-493-1 |
InChI | InChI:1S/C39H47NO14/c1-17-11-10-12-18(2)37(48)40-24-15-39(51-16-26(42)53-39)29-27(33(24)46)32(45)22(6)35-28(29)36(47)38(8,54-35)50-14-13-25(49-9)19(3)34(52-23(7)41)21(5)31(44)20(4)30(17)43/h10-15,17,19-21,25,30-31,34,43-45H,16H2,1-9H3,(H,40,48)/b11-10-,14-13-,18-12- |
Molecular Formula | C39H47NO14 |
Molar Mass | 753.79 |
Density | 1.2421 (rough estimate) |
Melting Point | 171°C (dec.) |
Boling Point | 730.16°C (rough estimate) |
Specific Rotation(α) | D20 +71.5° (c = 1 in dioxane) |
pKa | 4.61±0.70(Predicted) |
Storage Condition | -20°C Freezer, Under Inert Atmosphere |
Refractive Index | 1.5350 (estimate) |