Sulfachloropyrazine Sodium Monohydrate ( SPZ) Synonyms: Sulfaclozinum; Sulfaclozine; Sodium; Esbes( CibaCo.) ; Esbetre( Ciba Co.) ; Sulfatyf Sodium Chemical name: Sodium Monohydrate of 4-Amino-N-( 5-Chloro-3-Pyrazinyl) Benzensulfonamide Molecular formula: C10H8CLN4NaO2S· H2O Molecular weight: 325.7 CAS.No: 102-65-8 Chemical structure: Specification: CPV2005 Assay: 99.0% Package: 25KG/ DRUM Storage: Stored in a well-closed container, protected from light