274691-34-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 274691-34-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,7,4,6,9 and 1 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 274691-34:
(8*2)+(7*7)+(6*4)+(5*6)+(4*9)+(3*1)+(2*3)+(1*4)=168
168 % 10 = 8
So 274691-34-8 is a valid CAS Registry Number.
274691-34-8Relevant articles and documents
Synthesis and reactions of pyrido[3,2,1-jk]carbazole-4,6-diones
Stadlbauer, Wolfgang,Van Dang, Hoai,Knobloch, Bernd
experimental part, p. 1039 - 1049 (2011/11/06)
Pyrido[3,2,1-jk]carbazoles 1, synthesized from carbazoles and alkyl- or arylmalonates, gave regioselective electrophilic substitution reactions at position 5 such as chlorination to 5-chloro derivatives 2, nitration to 5-nitro compounds 3, or hydroxylatio
