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Recommended products : Sodium thiosulfate，Ammonium Thiosulphate，Vat red F3B
1. Product name: Vat red F3B (C.I. Vat Red 31) 2. Molecular formula: C30H16N4O5 3. CAS NO.:1227-47-3 4. Strength: 100% 5. Packing: 25kg iron drum
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