1002158-12-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1002158-12-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,0,2,1,5 and 8 respectively; the second part has 2 digits, 1 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1002158-12:
(9*1)+(8*0)+(7*0)+(6*2)+(5*1)+(4*5)+(3*8)+(2*1)+(1*2)=74
74 % 10 = 4
So 1002158-12-4 is a valid CAS Registry Number.
1002158-12-4Relevant articles and documents
Double annulations of dihydroxy- and diacetoxy-dialkynylbenzenes. An efficient construction of benzodifurans
Liang, Zhiqiang,Ma, Shengming,Yu, Jihong,Xu, Ruren
, p. 12877 - 12882 (2008/03/28)
An efficient synthetic route to construct disubstituted benzodifurans from dihydroxy- or diacetoxy-dialkynylbenzenes utilizing Cs2CO3 or Pd(OAc)2/Cs2CO3 promoted double annulations is described. The s
