70466-79-4

Basic information

• Product Name: Sulfamide, (3-nitrophenyl)- (9CI)
• Synonyms: Sulfamide, (3-nitrophenyl)- (9CI)
• CAS NO: 70466-79-4
• Molecular Formula: C6H7N3O4S
• Molecular Weight: 217.20248
• Product Categories: SULFONAMIDE
• Mol File: 70466-79-4.mol
• Article Data: 1

Chemical Properties

• Appearance: /
• CAS DataBase Reference: Sulfamide, (3-nitrophenyl)- (9CI)(CAS DataBase Reference)
• NIST Chemistry Reference: Sulfamide, (3-nitrophenyl)- (9CI)(70466-79-4)
• EPA Substance Registry System: Sulfamide, (3-nitrophenyl)- (9CI)(70466-79-4)

Safety Data

• Hazardous Substances Data: 70466-79-4(Hazardous Substances Data)

Upstream product

• 99-09-2 3-nitro-aniline 

Relevant articles and documents

Basicity of Nitrogen-Sulphur(VI) Compounds. Part 6. Ionization of NN'-Di- and N-Mono-substituted Sulphamides and Dihydro-2,1,3-benzothiadiazoline and Benzothiadiazine 2,2-Dioxides (Cyclic Sulphamides)

36 Di- and mono- and two tri-substituted sulphamides have been synthesised and their ionization equilibria in base (Schemes 1-3) have been studied.Many of the sulphamides are new materials.The pKa values obtained for each series have been correlated in Hammett and Taft plots.The Hammett ? values obtained for the ionization of the proximate hydrogen are ca. 2.3.The Taft ?* value obtained for ionization of the 'remoter' hydrogen is 1.68.The six-membered cyclic sulphamides are more acidic than their acyclic analogues by ca. 2.5 pKa units and the five-membered cyclic sulphamides are ca. 4 pKa units more acidic than model open-chain counterparts.Sulphur d-orbital involvement and ring-strain are suggested as possible sources of this 'acid-strengthening' effect.