| Catalogue Number: | R-0451 | 
| Compound Name: | Ribavirin Impurity 42 | 
| Synonyms: | |
| CAS#: | |
| Alternate CAS#: | |
| Molecular Formula: | C9H11N5O4 | 
| Molecular Weight: | 253.22 | 
Ribavirin Impurity 56-13C-15N4 (Aminoguanidine-13C-15N4)
CAS No. 478189-68-3
13CH615N4. 0.5H2SO4
M.W. 79.05 0.5*98.07