577776-39-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 577776-39-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,7,7,7,7 and 6 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 577776-39:
(8*5)+(7*7)+(6*7)+(5*7)+(4*7)+(3*6)+(2*3)+(1*9)=227
227 % 10 = 7
So 577776-39-7 is a valid CAS Registry Number.
577776-39-7Relevant articles and documents
Synthesis of aryl β-ketoesters by opening of aryl epoxides with ethyl diazoacetate catalyzed by BF3OEt2
Rao, D. Chandra,Reddy, D. Kumar,Shekhar,Chinababu,Rao, Ch. Bhujanga,Venkateswarlu
, p. 356 - 358 (2014/05/06)
A facile synthesis of 4-aryl substituted β-ketoesters from the reaction aryl epoxides with ethyl diazoacetate, in presence of BF 3OEt2 has been described with excellent yields.
