84820-01-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 84820-01-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,4,8,2 and 0 respectively; the second part has 2 digits, 0 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 84820-01:
(7*8)+(6*4)+(5*8)+(4*2)+(3*0)+(2*0)+(1*1)=129
129 % 10 = 9
So 84820-01-9 is a valid CAS Registry Number.
84820-01-9Relevant academic research and scientific papers
REDUCTIVE TRANSFORMATIONS 2. CIS- AND TRANS-1,2-ADDITION OF ELECTROPHILES TO DIANIONIC ?-SYSTEMS
Huber, W.,Irmen, W.,Lex, J.,Muellen, K.
, p. 3889 - 3892 (2007/10/02)
The dianion salt of a polycyclic ?-system is selectively alkylated to yield annulenes with trans- or cis-configuration of the bridging group.The products are suitable models for spectroscopic and structural considerations.
