465529-94-6 Usage
General Description
5-Nitropyridine-2-sulfonic acid is a chemical compound with the molecular formula C5H4N2O6S. It is a yellow crystalline solid, soluble in water and alcohol, and is mainly used as an intermediate in the production of dyes, pigments, and pharmaceuticals. 5-NITROPYRIDINE-2-SULFONIC ACID is also used as a reagent in various chemical reactions and as a precursor in the synthesis of other organic compounds. Its structure consists of a pyridine ring with a nitro group and a sulfonic acid group attached at different positions, giving it unique chemical properties and reactivity. However, 5-Nitropyridine-2-sulfonic acid is toxic by inhalation, ingestion, and skin contact and should be handled and disposed of with proper safety protocols.
Check Digit Verification of cas no
The CAS Registry Mumber 465529-94-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,6,5,5,2 and 9 respectively; the second part has 2 digits, 9 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 465529-94:
(8*4)+(7*6)+(6*5)+(5*5)+(4*2)+(3*9)+(2*9)+(1*4)=186
186 % 10 = 6
So 465529-94-6 is a valid CAS Registry Number.
InChI:InChI=1/C5H4N2O5S/c8-7(9)4-1-2-5(6-3-4)13(10,11)12/h1-3H,(H,10,11,12)
465529-94-6Relevant articles and documents
Substitution reactions of 5-nitropyridine-2-sulfonic acid. A new pathway to 2,5-disubstituted pyridines
Bakke, Jan M.,Sletvold, Ingrid
, p. 2710 - 2715 (2007/10/03)
We have investigated reactions of 5-nitropyridine-2-sulfonic acid and its potassium salt in which substitution of the sulfonate group by oxygen, nitrogen and halogen nucleophiles has been attempted. By this approach, 2-methoxy-(95% yield), 2-ethoxy- (97%), 2-isopropoxy- (65%), 2-amino- (92%), 2- butylamino- (76%), 2-diethylamino- (62%), 2-ethylamino- (32%), 2-benzylamino- (77%), 2-(R-1-phenylethylamino)- (71%) and 2-chloro-5-nitropyridine (87%) have been obtained. No reactions were observed with phenols or anilines. With t-BuOH, 2-hydroxy-5-nitropyridine was formed together with 2-methylpropene.
