92958-43-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 92958-43-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,2,9,5 and 8 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 92958-43:
(7*9)+(6*2)+(5*9)+(4*5)+(3*8)+(2*4)+(1*3)=175
175 % 10 = 5
So 92958-43-5 is a valid CAS Registry Number.
92958-43-5Relevant articles and documents
4,4'-Methylenebis(benzyne) Equivalent
Nakayama, Juzo,Sakai, Atsuhiro,Hoshino, Masamatsu
, p. 5084 - 5087 (1984)
The aprotic diazotization of 5,5'-methylenebis(anthranilic acid) (4) by isoamyl nitrite in refluxing 1,2-dichloroethane functions as a 4,4'-methylenebis(benzyne) (5) equivalent. 5 undergoes Diels-Alder reaction with tetraphenylcyclopentadienone, anthracen