104049-40-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 104049-40-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,4,0,4 and 9 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 104049-40:
(8*1)+(7*0)+(6*4)+(5*0)+(4*4)+(3*9)+(2*4)+(1*0)=83
83 % 10 = 3
So 104049-40-3 is a valid CAS Registry Number.
104049-40-3Relevant academic research and scientific papers
Rearrangement of Freelingyne with Base
Abell, Andrew D.,Massy-Westropp, Ralph A.,Reynolds, Geoffrey D.
, p. 1129 - 1131 (2007/10/02)
Treatment of freelingyne (1) with sodium hydroxide in aqueous methanol gives the rearranged acid (2a).
