499776-31-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 499776-31-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,9,9,7,7 and 6 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 499776-31:
(8*4)+(7*9)+(6*9)+(5*7)+(4*7)+(3*6)+(2*3)+(1*1)=237
237 % 10 = 7
So 499776-31-7 is a valid CAS Registry Number.
499776-31-7Relevant academic research and scientific papers
Sulfur mediated ritter reactions: The synthesis of cyclic amides
Eastgate, Martin D.,Fox, David J.,Morley, Thomas J.,Warren, Stuart
, p. 2124 - 2128 (2007/10/03)
Simple β-hydroxy-γ-phenylsulfanyl nitriles undergo a selective Ritter reaction, onto a thiiranium (episulfonium) ion, to yield 15-membered triamides. This selective trimerisation allows the rapid synthesis of these macrocylic triamides.
