Formamidinesulfinic acid

• Catalog No.: A11885
• CAS Number: 1758-73-2
• M. F.: CH4N2O2S
• M. W.: 108.11966
• Purity: 98%

SYNONYMS

• Title: 甲脒亚磺酸
• IUPAC name: carbamimidoylsulfinic acid
• IUPAC Traditional name: thiourea dioxide
• Synonyms: Thiourea dioxide; Aminoiminomethanesulfinic acid

DATABASE IDS

• Beilstein Number: 506653
• CAS Number: 1758-73-2
• MDL Number: MFCD00002397
• EC Number: 217-157-8

PROPERTIES

• Purity: 98%
• Density: 1.68
• Melting Point: ca 126°C dec.
• GHS Hazard statements: H301-H315-H319-H335-H252
• European Hazard Symbols: X
• GHS Precautionary statements: P261-P301+P310-P305+P351+P338-P302+P352-P405-P501A
• Risk Statements: 5-22-36/37/38
• RTECS: PB0372500
• Safety Statements: 26-36/37
• Storage Warning: Moisture Sensitive
• TSCA Listed: 是
• Hazard Class: 4.2
• UN Number: UN3341
• Packing Group: III

REFERENCES

• Disulfides and N-tosylsulfimines are reduced, under phase-transfer conditions, to thiols and sulfides respectively: Synthesis, 529 (1975). In the presence of iodine as a catalyst, sulfoxides are reduced to sulfides in high yield: Synthesis, 542 (1978).
• For use in the reductive cyclization of nitro ketones to pyrroles, see 2-Benzylidenecyclohexanone, L13434 and 3-Penten-2-one, L13031.
• Has been used to reduce ketones to secondary alcohols: Tetrahedron Lett., 343 (1972), and aldehydes to primary alcohols: J. Chin. Chem. Soc., 21, 235 (1973).