1,1'-((1,3-Propanediylidene)dinitrilo)diguanidine 1945-62-6 BRN 1879066 Guanidine, 1,1'-((1,3-propanediylidene)dinitrilo)di- Hydrazinecarboximidamide, 2,2'-(1,3-propanediylidene)bis- Malonaldehyde-bis-guanylhydrazone