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Responses of the L5178Y tk + /tk − mouse lymphoma cell forward mutation assay ii: 18 coded chemicals
Author(s) -
McGregor Douglas B.,
Brown Alison,
Cattanach Pamela,
Edwards Ian,
McBride Douglas,
Caspary William J.
Publication year - 1988
Publication title -
environmental and molecular mutagenesis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1
H-Index - 87
eISSN - 1098-2280
pISSN - 0893-6692
DOI - 10.1002/em.2850110110
Subject(s) - butylated hydroxytoluene , chemistry , nuclear chemistry , dimethyl sulfoxide , biochemistry , organic chemistry , medicinal chemistry , antioxidant
Eighteen chemicals were tested for their mutagenic potential in the L5178Y tk + / − mouse lymphoma cell forward mutation assay by the use of procedures based upon those described by Clive and Spector [Mutat Res 44:269–278, 1975] and Clive et al [Mutat Res 59:61–108, 1979]. Cultures were exposed to the chemicals for 4 hr, then cultured for 2 days before plating in soft agar with or without trifluorothymidine (TFT), 3 μg/ml. The chemicals were tested at least twice. Significant responses were obtained with benzofuran, benzyl chloride, bromodi‐chloromethane, butylated hydroxytoluene, chlorendic acid, o ‐chlorobenzalmalo‐nitrile, 1,2,3,4‐diepoxybutane, dimethyl formamide, dimethyl hydrogen phosphite, furfural, glutaraldehyde, hydroquinone, 8‐hydroxyquinoline, and resorcinol. Apart from bromodichloromethane, butylated hydroxytoluene and dimethyl hydrogen phosphite, rat liver S9 mix was not a requirement for the activity of any of these compounds. Chemicals not identified as mutagens were water, tert ‐butyl alcohol, pyridine, and witch hazel.