| Title:  Nornidulin CAS Registry Number:  33403-37-1 CAS Name:  2,4,7-Trichloro-3,8-dihydroxy-1,9-dimethyl-6-(1-methyl-1-propenyl)-11H-dibenzo[b,e][1,4]dioxepin-11-one Trademarks:  Ustin Molecular Formula:  C19H15Cl3O5 Molecular Weight:  429.68 Percent Composition:  C 53.11%, H 3.52%, Cl 24.75%, O 18.62% Literature References:  Antibiotic substance produced by Aspergillus ustus:  Kurung, Science 102, 11 (1945); Hogeboom, Craig, J. Biol. Chem. 162, 363 (1946); Doering et al., J. Am. Chem. Soc. 68, 725 (1946).  Structure:  Dean et al., J. Chem. Soc. 1960, 4829; Bycroft et al., ibid. 1963, 5148. Properties:  Crystals from ether + cyclohexane, mp 185-187°.  uv max:  266 nm (e 8120). Melting point:  mp 185-187° Absorption maximum:  uv max:  266 nm (e 8120)     Status:  This monograph has been retired and is no longer subject to revision or update.  |