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| specifications︰ | CAS No.51-52-5 Molecular Formula: C7H10N2OS Molecular Weight: 170.2 Appearance: white crystalline powder M.P.218-221℃ Loss on drying: 0.5%max Ignition residue 0.1%max Heavy metal: 20ppm max Assay: 98-100.5% Identification: Positive |
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