20524-92-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 20524-92-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,5,2 and 4 respectively; the second part has 2 digits, 9 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 20524-92:
(7*2)+(6*0)+(5*5)+(4*2)+(3*4)+(2*9)+(1*2)=79
79 % 10 = 9
So 20524-92-9 is a valid CAS Registry Number.
20524-92-9Relevant academic research and scientific papers
PREPARATION OF E-1-SUBSTITUTED-2-METHOXYBUTADIENES FROM METHOXYALLENE
Kucerovy, Andrew,Neuenschwander, Kent,Weinreb, Steven M.
, p. 875 - 880 (2007/10/02)
The title dienes have been efficiently prepared by a two-step sequence involving initial alkylation of the carbanion derived from methoxyallene followed by isomerization to the 1,3-diene with pyridinium p-toluenesulfonate.
