131451-71-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 131451-71-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,1,4,5 and 1 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 131451-71:
(8*1)+(7*3)+(6*1)+(5*4)+(4*5)+(3*1)+(2*7)+(1*1)=93
93 % 10 = 3
So 131451-71-3 is a valid CAS Registry Number.
131451-71-3Relevant articles and documents
Synthesis of the bottom half of chlorothricolide
Hirsenkorn, Rolf,Haag-Zeino, Brigitte,Schmidt, Richard R.
, p. 4433 - 4436 (2007/10/02)
Diels-Alder reaction of 1-acetoxy-pentadienol derivative 5 with cyclohexenone afforded cycloadduct 6 which gave with base the transoctahydronaphthalene skeleton 4. Diastereoselective reduction of the keto group and then Claisen-Ireland rearrangement furni