Trans-2,3b,4,5,7,8b,9,10-octahydronaphthol[1,2-c:5,6.C']dipyrazole, a new orally active antiallergic compound

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• Hubei Danao Pharmaceutical Co.,Ltd.

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• Tianjin Jiuri New Materials Co., Ltd.

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• RongCheng Tianyu Technology Co.,Ltd.

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• Sichuan WeiKeqi Biological Technology Co., Ltd.

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