33902-83-9Relevant articles and documents
IDENTIFICATION OF A NOVEL C33 DPEP PETROPORPHYRIN FROM BOSCAN CRUDE OIL: EVIDENCE FOR GEOCHEMICAL REDUCTION OF CARBOXYLIC ACIDS.
Verne-Mismer, J.,Ocampo, R.,Callot, H. J.,Albrecht, P.
, p. 5257 - 5260 (1986)
The isolation and structural determination (n.m.r., n.O.e., synthesis) of a C33 member of the DPEP series from Boscan crude oil indicates that total reduction of the propionic side-chain of a precursor chlorophyll may occur during the processes leading to oil formation.