131073-87-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 131073-87-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,1,0,7 and 3 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 131073-87:
(8*1)+(7*3)+(6*1)+(5*0)+(4*7)+(3*3)+(2*8)+(1*7)=95
95 % 10 = 5
So 131073-87-5 is a valid CAS Registry Number.
131073-87-5Relevant academic research and scientific papers
Optically active dihydropyrans and 3-methylenetetrahydrofurans from cyclopropenylethanol derivatives
Al-Dulayymi, Juma'a R.,Baird, Mark S.
, p. 5703 - 5714 (2007/10/02)
Reaction of a number of 2-(cycloprop-1-en-1-yl)ethanol derivatives with bromine, acid or silver ion leads to ring expansion, either to 5,6-dihydro 2H-pyrans or to 3-methylenetetrahydrofurans.
