1357172-38-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1357172-38-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,5,7,1,7 and 2 respectively; the second part has 2 digits, 3 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 1357172-38:
(9*1)+(8*3)+(7*5)+(6*7)+(5*1)+(4*7)+(3*2)+(2*3)+(1*8)=163
163 % 10 = 3
So 1357172-38-3 is a valid CAS Registry Number.
1357172-38-3Relevant articles and documents
Synthesis of 2,6-disubstituted-7,8-dihydro-6H-pyrano[2,3-6]pyrazines
Li, Jian-Cheng,Munchhof, Michael,Warmus, Joseph S.,Bonin, Paul D.,McClure, Kim F.
, p. 852 - 853 (2012/03/08)
A straightforward synthesis of a 2,6-disubstituted-7,8-dihydro-6H-pyrano[2, 3-6]pyrazine is described. The synthesis relies on a versatile dichloropyrazine-aldehyde intermediate and an olefination partner.
