172908-33-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 172908-33-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,2,9,0 and 8 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 172908-33:
(8*1)+(7*7)+(6*2)+(5*9)+(4*0)+(3*8)+(2*3)+(1*3)=147
147 % 10 = 7
So 172908-33-7 is a valid CAS Registry Number.
172908-33-7Relevant articles and documents
Ring Opening of Cyclopropylketones Induced by Photochemical Electron Transfer
Cossy, Janine,Furet, Nathalie,BouzBouz, Samir
, p. 11751 - 11764 (2007/10/02)
Depending on the substitution pattern of cyclopropylketones, the photochemically induced electron transfer of tertiary amines to cyclopropylketones leads either to the formation of 3-substituted cycloalkanones or to ring expanded products.
