Nomenclature
CAS number: 53092-91-4
C
32H
30O
14; mol wt 638.57.
C 60.19%, H 4.74%, O 35.08%.
Description and references
Yellow pigment from ergot. Diastereoisomer
of secalonic acids.
Properties
Pale yellow needles from chloroform, mp 268-270°; pale yellow plates from
glacial acetic acid, mp 250-257°. [α]D20 3 to +34° (c = 1.11 in pyridine). uv max (glacial acetic acid): 335 nm (log ε 4.57). One part sol
in 1000 parts boiling chloroform; in 800-1000 parts boiling glacial
acetic acid.Status
This monograph has been retired and is no longer subject
to revision or update.