87655-41-2 Usage
General Description
2,6-Dimethylpyridine-3-sulfonic acid is a chemical compound with the molecular formula C8H11NO4S. It is a sulfonic acid derivative of 2,6-dimethylpyridine, and is commonly used as a reagent in organic synthesis. It is a white to light yellow crystalline solid that is soluble in water and other polar solvents. 2,6-Dimethylpyridine-3-sulfonic acid is often used as a catalyst in various chemical reactions, including the synthesis of pharmaceuticals, dyes, and other organic compounds. Additionally, it has applications in the production of agrochemicals, polymers, and other industrial processes. Due to its versatile reactivity and solubility, 2,6-dimethylpyridine-3-sulfonic acid is a valuable tool in the field of organic chemistry and chemical research.
Check Digit Verification of cas no
The CAS Registry Mumber 87655-41-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,7,6,5 and 5 respectively; the second part has 2 digits, 4 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 87655-41:
(7*8)+(6*7)+(5*6)+(4*5)+(3*5)+(2*4)+(1*1)=172
172 % 10 = 2
So 87655-41-2 is a valid CAS Registry Number.
87655-41-2Relevant articles and documents
Kinetic and Equilibrium Studies of the Copper(II) Promoted Hydrolysis of Salicyl Phosphate. A Rate Acceleration of 1E8 for the Hydrolysis of a Phosphate Monoester Dianion
Hay, Robert W.,Basak, Arup K.,Pujari, Mahesh P.,Perotti, Angelo
, p. 2029 - 2034 (2007/10/02)
The dissociation constants of salicyl phosphate (H3L) at 10 deg C and I= 0.1 mol dm-3 have been determined (pKa values 1.84, 3.57, and 6.18).At a 1:1 ligand to metal ratio the interaction of copper(II) with salicyl phosphate can be described by the equilibria given below. The pKa values for the ionisation processes CuHL - + H+ and - 2- + H+ are 5.1 and 5.9 respectively.Kinetic studies establish that in the copper(II) promoted hydrolysis, the complex - is the active species with kCuL- = 6 * 1E-4 s-1 at 25 deg C and I = 0.1 mol dm-3.Copper(II) ions promote the hydrolysis of the dianion of the phosphate monoester by a factor of ca. 1E8.Previous work in this area had indicated only a small rate acceleration (ca. 10 fold) as comparisons were made between the metal-ion promoted reaction and the intramolecular general acid catalysed hydrolysis of the phosphate monoester dianion.
