122509-57-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 122509-57-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,2,5,0 and 9 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 122509-57:
(8*1)+(7*2)+(6*2)+(5*5)+(4*0)+(3*9)+(2*5)+(1*7)=103
103 % 10 = 3
So 122509-57-3 is a valid CAS Registry Number.
122509-57-3Relevant articles and documents
TANDEM -CYCLOADDITION -SIGMATROPIC REARRANGEMENT REACTION OF ALLENYL SULFOXIDES WITH NITRONES
Padwa, Albert,Norman, Bryan H.,Perumattam, John
, p. 663 - 666 (1989)
The cycloaddition reaction of 2,4-dinitrophenylsulfinylpropadiene with several nitrones has been investigated.The initial 3+2-cycloadduct readily undergoes a subsequent 2,3-sigmatropic rearrangement.
