1271-24-5 Bis(.eta.5-cyclopentadienyl) chromium Bis(cyclopentadiene)chromium Bis(cyclopentadiene)chromium(II) Bis(cyclopentadienyl)chromium Bis(cyclopentadienyl)chromium(II) Bis(eta5-cyclopenta-2,4-dien-1-yl)chromium CCRIS 5974 Chromium, dicyclopentadienyl- Chromocene Di((eta-5)-cyclopentadienyl)chromium Dicyclopentadienylchromium EINECS 215-036-4