428517-57-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 428517-57-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,2,8,5,1 and 7 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 428517-57:
(8*4)+(7*2)+(6*8)+(5*5)+(4*1)+(3*7)+(2*5)+(1*7)=161
161 % 10 = 1
So 428517-57-1 is a valid CAS Registry Number.
428517-57-1Relevant articles and documents
A convenient one-step synthesis of fluoroethylidene derivatives
Chevrie,Lequeux,Demoute,Pazenok
, p. 8127 - 8130 (2003)
A convenient one-step synthesis of gem-monofluoroalkylolefins starting from aldehydes or ketones was developed. This method comprises the utilisation of 2-(1-fluoroethyl)sulfonyl-1,3-benzothiazole according to Julia's procedure and opens a new opportunity
