25124-91-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 25124-91-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,5,1,2 and 4 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 25124-91:
(7*2)+(6*5)+(5*1)+(4*2)+(3*4)+(2*9)+(1*1)=88
88 % 10 = 8
So 25124-91-8 is a valid CAS Registry Number.
25124-91-8Relevant articles and documents
Expedient acylations of primary and secondary alkyl cyanides to α-substituted β-ketonitriles
Katritzky, Alan R.,Abdel-Fattah, Ashraf A. A.,Wang, Mingyi
, p. 4932 - 4934 (2003)
Primary and secondary cyanides are efficiently acylated with N-acylbenzotriazoles 3a-f (derived from a variety of acids) to afford the corresponding α-substituted β-ketonitriles 5a-r in 67-96% yields.
