104971-15-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 104971-15-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,4,9,7 and 1 respectively; the second part has 2 digits, 1 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 104971-15:
(8*1)+(7*0)+(6*4)+(5*9)+(4*7)+(3*1)+(2*1)+(1*5)=115
115 % 10 = 5
So 104971-15-5 is a valid CAS Registry Number.
104971-15-5Relevant articles and documents
A Versatile Two-Stage Synthesis of 2-Substituted Benzofurans from (2-Methoxyphenyl)ethynes
Buckle, Derek, R.,Rockell, Caroline J. M.
, p. 2443 - 2446 (2007/10/02)
(2-Methoxyphenyl)ethynes react with aryl or alkyl halides to give disubstituted alkynes which are converted into the corresponding 2-substituted benzofurans on treatment with lithium iodide in 2,4,6-trimethylpyridine.
