131497-51-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 131497-51-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,1,4,9 and 7 respectively; the second part has 2 digits, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 131497-51:
(8*1)+(7*3)+(6*1)+(5*4)+(4*9)+(3*7)+(2*5)+(1*1)=123
123 % 10 = 3
So 131497-51-3 is a valid CAS Registry Number.
131497-51-3Relevant articles and documents
α-ACYL-SULFINES BY REACTION OF ACETYLENES WITH N-SULFINYL-AMIDES
Himbert, Gerhard,Pfeifer, Klaus-Peter,Finkele, Christoph E.
, p. 125 - 128 (2007/10/02)
Ynamines, ynethers and phenylacetylene react with N-sulfinyl-carboxamides to give 1,4,3-oxathiazines, which tend to devide by a retro Diels-Alder reaction into nitriles and 2-sulfinyl-amides, 2-sulfinyl-esters and sulfinylacetophenone, resp.
