28918-23-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 28918-23-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,8,9,1 and 8 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 28918-23:
(7*2)+(6*8)+(5*9)+(4*1)+(3*8)+(2*2)+(1*3)=142
142 % 10 = 2
So 28918-23-2 is a valid CAS Registry Number.
28918-23-2Relevant articles and documents
Heterocyclic spirocyclohexadienones, II
Mohrle,Schake
, p. 695 - 700 (2007/10/02)
Hofmann-Martius rearrangement of differently substituted aniline derivatives is investigated and the synthesis of spirocyclohexadienones 5 and 25 is performed. In comparison with 9, a N-aliphatic spiro compound, 5 and 25 give partially different reactions, the cause of which is discussed.