127956-05-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 127956-05-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,7,9,5 and 6 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 127956-05:
(8*1)+(7*2)+(6*7)+(5*9)+(4*5)+(3*6)+(2*0)+(1*5)=152
152 % 10 = 2
So 127956-05-2 is a valid CAS Registry Number.
127956-05-2Relevant articles and documents
Free Radical Ring-Expansion Leading to Novel Six- and Seven-Membered Heterocycles
Dowd, Paul,Choi, Soo-Chang
, p. 4847 - 4860 (2007/10/02)
Free radical promoted ring-expansion of nitrogen-, oxygen- and sulfur-containing heterocyclic β-keto esters is described.Treatment of the derived phenylselenomethyl derivatives with tri-n-butyltin hydride leads to smooth one-carbon ring expansion.
