1421617-68-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1421617-68-6 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,2,1,6,1 and 7 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 1421617-68:
(9*1)+(8*4)+(7*2)+(6*1)+(5*6)+(4*1)+(3*7)+(2*6)+(1*8)=136
136 % 10 = 6
So 1421617-68-6 is a valid CAS Registry Number.
1421617-68-6Relevant articles and documents
A convenient synthesis of 2-substituted benzofurans from salicylaldehydes
Reddy, Swetha,Thadkapally, Srinivas,Mamidyala, Mounika,Nanubolu, Jagadeesh Babu,Menon, Rajeev S.
, p. 8199 - 8204 (2015)
Base-mediated cyclocondensation of 2-hydroxybenzaldehydes with 3-bromo-1-(arylsulfonyl)propenes and 4-bromocrotonates afforded (E)-2-(2-sulfonylvinyl)benzofurans and (E)-2-benzofuranyl-3-acrylates respectively.