134950-49-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 134950-49-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,4,9,5 and 0 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 134950-49:
(8*1)+(7*3)+(6*4)+(5*9)+(4*5)+(3*0)+(2*4)+(1*9)=135
135 % 10 = 5
So 134950-49-5 is a valid CAS Registry Number.
134950-49-5Relevant academic research and scientific papers
Lee,Oh
, p. 279 - 284 (1991)
Various α-hetero atom substituted β-keto and enamine phosphonates are prepared by the nucleophilic addition of α-lithioanion of diethyl methylphosphonate to nitriles followed by subsequent addition of electrophiles.
