81751-07-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 81751-07-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,7,5 and 1 respectively; the second part has 2 digits, 0 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 81751-07:
(7*8)+(6*1)+(5*7)+(4*5)+(3*1)+(2*0)+(1*7)=127
127 % 10 = 7
So 81751-07-7 is a valid CAS Registry Number.
81751-07-7Relevant articles and documents
THE SYNTHESIS OF DEHYDROPERLOLINE
Prager, Rolf,Duong, Thach,Clarke, Stuart
, p. 237 - 239 (2007/10/02)
Fluorenone and 3-aza-4-oxo-3,4-dihydrofluorenone react with 3,4-dimethoxyphenyllithium to form the corresponding fluorenols, which react with hydrazoic acid to form the phenanthridine.The N-oxides photolyse smoothly to yield dehydroperloline and its analo
