1131-20-0 Usage
General Description
3-Ethyl-6-methyl-4-nitro-6H-pyridine 1-oxide is a chemical compound with the molecular formula C8H10N2O3. It is a nitroso compound, and its structure contains a six-membered pyridine ring with an ethyl group at the 3-position, a methyl group at the 6-position, and a nitroso group at the 4-position. 3-ethyl-6-methyl-4-nitro-6H-pyridine 1-oxide is widely used in the synthesis of various pharmaceuticals, agrochemicals, and organic compounds. It is also known for its ability to act as a radical scavenger and an antioxidant, making it useful in the formulation of cosmetics and other personal care products. Additionally, its structural and electronic properties make it a valuable tool for the investigation of chemical reactions and mechanisms in organic chemistry.
Check Digit Verification of cas no
The CAS Registry Mumber 1131-20-0 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,1,3 and 1 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1131-20:
(6*1)+(5*1)+(4*3)+(3*1)+(2*2)+(1*0)=30
30 % 10 = 0
So 1131-20-0 is a valid CAS Registry Number.
InChI:InChI=1/C8H11N2O3/c1-3-7-5-9(11)6(2)4-8(7)10(12)13/h4-6H,3H2,1-2H3/q+1
1131-20-0Relevant articles and documents
Improved Synthesis of N1-Pyridylthiamine Pyrophosphate, a Coenzymatically Active Analog of Thiamine Pyrophosphate
Neef, Holger,Golbik, Ralph,Fahlbusch, Baerbel,Schellenberger, Alfred
, p. 913 - 916 (2007/10/02)
Our previously published synthesis of the N1-pyridyl analog 1b of thiamine pyrophosphate is improved resulting in a remarkably higher yield.Key reaction of this new synthetic pathway is the oxidative degradation of 5-acetylpyridine 8 to the 5-carboxylic acid 11 via the pyridinium compound 10.Improved preparations of other intermediates are also described.The N1-pyridylthiamine pyrophosphate analog 1b has been separated and purified by ion exchange chromatography on Sephadex A-25.
