902772-64-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 902772-64-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,0,2,7,7 and 2 respectively; the second part has 2 digits, 6 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 902772-64:
(8*9)+(7*0)+(6*2)+(5*7)+(4*7)+(3*2)+(2*6)+(1*4)=169
169 % 10 = 9
So 902772-64-9 is a valid CAS Registry Number.
902772-64-9Relevant academic research and scientific papers
Synthesis of pyrrolo[3,2,1-hi]indazoles from indole-7-ketoximes
Wahyuningsih, Tutik Dwi,Pchalek, Karin,Kumar, Naresh,Black, David StC.
, p. 6343 - 6348 (2007/10/03)
Treatment of the 2,4-dinitrophenyl ethers of some indole-7-ketoximes with base results in a cyclisation reaction to yield pyrrolo[3,2,1-hi]indazoles.
