89407-42-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 89407-42-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,9,4,0 and 7 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 89407-42:
(7*8)+(6*9)+(5*4)+(4*0)+(3*7)+(2*4)+(1*2)=161
161 % 10 = 1
So 89407-42-1 is a valid CAS Registry Number.
89407-42-1Relevant articles and documents
Some Studies on syn-Elimination Reactions
Crich, David,Lin, Linda B. L.
, p. 2928 - 2941 (2007/10/02)
On heating to 220 deg C the 2-alkylthiopyridine N-oxide (6) was found to undergo syn-elimination giving ethyl acrylate.Sulphoxide (15) was more prone to syn-elimination than sulphoxide (16) demonstrating the importance of β-hydrogen acidity in the rate of sulphoxide syn-eliminations.