Jss. Damste et al., CYCLIZATION AND AROMATIZATION OF CAROTENOIDS DURING SEDIMENT DIAGENESIS, Journal of the Chemical Society, Chemical Communications, (2), 1995, pp. 187-188
A novel diaryl isoprenoid with an additional aromatic ring (C40H58), f
ormed from the diaromatic carotenoid isorenieratene by cyclisation and
aromatisation during sediment diagenesis, is identified in carbonaceo
us sedimentary rocks.