40155-28-0 Usage
General Description
2-Chloro-3-methoxypyrazine is a chemical compound with the formula C6H6ClN3O. It is a heterocyclic organic compound that is commonly used as a flavoring agent in food and beverages due to its earthy, green, and pepper-like aroma. It is found naturally in foods such as roasted coffee, black tea, and cooked beef. The compound is also used in the production of herbicides and insecticides. It is a colorless or pale yellow liquid with a strong odor. Due to its distinctive odor, it is also used in the manufacture of perfumes and fragrances. However,
Check Digit Verification of cas no
The CAS Registry Mumber 40155-28-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,0,1,5 and 5 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 40155-28:
(7*4)+(6*0)+(5*1)+(4*5)+(3*5)+(2*2)+(1*8)=80
80 % 10 = 0
So 40155-28-0 is a valid CAS Registry Number.
InChI:InChI=1/C5H5ClN2O/c1-9-5-4(6)7-2-3-8-5/h2-3H,1H3
40155-28-0Relevant articles and documents
Studies on Pyrazines. 29. High Regioselective Synthesis of Chloropyrazines from 3-Substituted Pyrazine 1-Oxides
Sato, Nobuhiro,Fujii, Megumi
, p. 1177 - 1180 (2007/10/02)
Reaction of 3-methoxy- or 3-chloropyrazine 1-oxides with refluxing phosphoryl chloride in the presence of amine led to a high regioselective formation of 3-substituted 2-chloropyrazines.In contrast, the use of chloroacetyl chloride instead of phosphoryl chloride enabled different regioselectivity to yield 6-substituted 2-chloropyrazines, particularly 3-methoxycarbonylpyrazine 1-oxide was almost exclusively converted into methyl 6-chloropyrazinecarboxylate under conditions without the amine.
