169167-69-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 169167-69-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,9,1,6 and 7 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 169167-69:
(8*1)+(7*6)+(6*9)+(5*1)+(4*6)+(3*7)+(2*6)+(1*9)=175
175 % 10 = 5
So 169167-69-5 is a valid CAS Registry Number.
169167-69-5Relevant articles and documents
New thermal rearrangements of vinylogous ketoketenes and related intermediates
Cartwright, Gary A.,Gould, Robert O.,McNab, Hamish
, p. 1293 - 1294 (1997)
2-Oxopyran-5-carbaldehydes (e.g. 3) containing a trapping group in the 5-position rearrange thermally by a sequence involving electrocyclic ring opening, E/Z isomerisation and ring closure; a similar strategy has enabled the first cases of thermal interco
