31538-47-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 31538-47-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,1,5,3 and 8 respectively; the second part has 2 digits, 4 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 31538-47:
(7*3)+(6*1)+(5*5)+(4*3)+(3*8)+(2*4)+(1*7)=103
103 % 10 = 3
So 31538-47-3 is a valid CAS Registry Number.
31538-47-3Relevant articles and documents
A versatile synthesis of butenolides: Total synthesis of (+/-)-mintlactone
Cory,Ritchie,Shrier
, p. 6789 - 6792 (1990)
The butenolide monoterpenes, mintlactone and isomintlactone, have been synthesized by a new method for the preparation of butenolides from α,β-unsaturated esters by deconjugation, epoxidation and rearrangement.
