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1 kg (MOQ)$35.00

Xi'an Henrikang Biotech Co., Ltd.High Purity 99% Nutrition Pharmaceutical Intermediate Theophylline Anhydrous Powder CAS 58-55-9

1 kg (MOQ)$50.00

Xi'an Homey Technology Co., Ltd.Pharmaceutical Intermediate 58-55-9 Theophylline Anhydrous Powder Theophylline