Rifaximin EP Impurity H
[CAS# 1210022-90-4]

Identification

• Name: Rifaximin EP Impurity H
• Synonyms: 16-Desmethyl-16-(hydroxymethyl)rifaximin;[(7S,9E,11S,12R,13S,14R,15R,16R,17S,18S,19E,21Z)-2,15,17,36-tetrahydroxy-22-(hydroxymethyl)-11-methoxy-3,7,12,14,16,18,30-heptamethyl-6,23-dioxo-8,37-dioxa-24,27,33-triazahexacyclo[23.10.1.14,7.05,35.026,34.027,32]heptatriaconta-1(35),2,4,9,19,21,25(36),26(34),28,30,32-undecaen-13-yl] acetate
• Molecular Formula: C₄₃H₅₁N₃O₁₂
• Molecular Weight: 801.88
• CAS Registry Number: 1210022-90-4
• SMILES: C[C@H]1/C=C/C=C(C(=O)NC2=C(C3=C(C4=C(C(=C3O)C)O[C@@](C4=O)(O/C=C/[C@@H]([C@H]([C@H]([C@@H]([C@@H]([C@@H]([C@H]1O)C)O)C)OC(=O)C)C)OC)C)C5=C2N6C=CC(=CC6=N5)C)O)/CO

Properties

• Density: 1.4±0.1 g/cm³, Calc.^*
• Index of Refraction: 1.641, Calc.^*

^* Calculated using Advanced Chemistry Development (ACD/Labs) Software.