940876-99-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 940876-99-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,4,0,8,7 and 6 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 940876-99:
(8*9)+(7*4)+(6*0)+(5*8)+(4*7)+(3*6)+(2*9)+(1*9)=213
213 % 10 = 3
So 940876-99-3 is a valid CAS Registry Number.
940876-99-3Relevant articles and documents
A new construction of 2-alkoxypyrans by an acylation-reductive cyclization sequence
Heumann, Lars V.,Keck, Gary E.
, p. 1951 - 1954 (2008/02/02)
A new convergent synthetic approach to a pyran motif common to many naturally occurring structures is described. In this approach, two fragments are joined by esterification, and a subsequent intramolecular reductive cyclization affords the 2-hydroxypyran.
