140654-23-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 140654-23-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,0,6,5 and 4 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 140654-23:
(8*1)+(7*4)+(6*0)+(5*6)+(4*5)+(3*4)+(2*2)+(1*3)=105
105 % 10 = 5
So 140654-23-5 is a valid CAS Registry Number.
140654-23-5Relevant articles and documents
A novel synthesis of α-(perfluoroalkyl) ketones
Hu, Chang-Ming,Tang, Xiao-Qing,Qing, Feng-Ling
, p. 405 - 407 (1992)
Reaction of sodium perhalofluoroalkyl sulfinates with alkenes under UV irradiation and oxygen atmosphere provides α-perhalofluoroalkyl ketones in good yields.
