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Table 1 Participantes and test substances in the collaborative study

From: Weight of evidence approach using a TK gene mutation assay with human TK6 cells for follow-up of positive results in Ames tests: a collaborative study by MMS/JEMS

No. Participating Laboratories Investigators Test Substances CAS No. Manufacturer, Lot# Solvent
1 Ina Research Inc. Tadashi Imamura 4-(Chloroacetyl)acetanilide 140-49-8 FUJIFILM Wako Pure Chemical Corporation, Lot#KPJ1678 DMSO
2 Japan Tobacco Inc. Tsuneo Hashizume, Haruna Yamamoto, Kaori Shibuya 2-(Chloromethyl) pyridine HCl 6959-47-3 Tokyo Chemical Industry Co., Ltd., Lot#7BOQI-IC DMSO
3 Yakult Central Institute Kazunori Narumi, Yohei Fujiishi, Emiko Okada 2,6-Diaminotoluene 823-40-5 Tokyo Chemical Industry Co., Ltd., Lot#IUL6B DMSO
4 Chemicals Evaluation and Research Institute, Japan Saori Fujishima 2,5-Diaminotoluene 95-70-5 Tokyo Chemical Industry Co., Ltd., Lot#QFIJE DMSO
5 Astellas Pharma Inc. Mika Yamamoto, Naoko Otani HC Blue No.2 33229-34-4 SIGMA-ALDRICH, Lot#STBF9635V DMSO
6 BoZo Research Center Inc. Takayuki Fukuda, Maki Nakamura, Ryoichi Nishimura, Shuichi Hamada 8-Hydroxyquinoline 148-24-3 Tokyo Chemical Industry Co., Ltd., Lot#5PDSI-RB DMSO
7 BioSafety Research Center Inc. Maya Ueda Iodoform 75-47-8 FUJIFILM Wako Pure Chemical Corporation, Lot#PDH1055 DMSO
8 Chugai Pharmaceutical Co., Ltd Masayuki Mishima, Kaori Matsuzaki, Akira Takeiri, Kenji Tanaka 4-Nitroanthranilic acid 619-17-0 Tokyo Chemical Industry Co., Ltd., Lot#AGM01-AGMQ DMSO
9 TEIJIN PHARMA LIMITED Yuki Okada, Takafumi Kimoto 1-Nitronaphthalene 86-57-7 Tokyo Chemical Industry Co., Ltd., Lot#BGF8A-MD Ethanol
10 LSI Medience Corporation Munehiro Nakagawa, Akihiko Kajiwara 4-Nitro-o-phenylenediamine 99-56-9 Tokyo Chemical Industry Co., Ltd., Lot#NMEDH DMSO
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