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4,5-Diamino-1-(2-hydroxy)ethylpyrazole sulfate (13)CAS RN:155601-30-2
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Guangzhou HeKe chemical co., LTDTelephone:+86-20-86431362，+86-20-86431323
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Orchid Chemical Supplies LtdTelephone:+86-571-85395792 +13867466880
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