134809-70-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 134809-70-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,4,8,0 and 9 respectively; the second part has 2 digits, 7 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 134809-70:
(8*1)+(7*3)+(6*4)+(5*8)+(4*0)+(3*9)+(2*7)+(1*0)=134
134 % 10 = 4
So 134809-70-4 is a valid CAS Registry Number.
134809-70-4Relevant articles and documents
An efficient synthesis of ketone enol ethers mediated by N-(1-alkoxyalkyl)benzotriazoles
Katritzky,Bayyuk,Rachwal
, p. 279 - 283 (2007/10/02)
A new general method for the transformation of ketones into their enol ethers in good yield is developed via elimination of benzotriazole from N-(1-alkoxyalkyl)benzotriazole intermediates.
