1449521-91-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1449521-91-8 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,4,9,5,2 and 1 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1449521-91:
(9*1)+(8*4)+(7*4)+(6*9)+(5*5)+(4*2)+(3*1)+(2*9)+(1*1)=178
178 % 10 = 8
So 1449521-91-8 is a valid CAS Registry Number.
1449521-91-8Relevant articles and documents
Synthetic studies towards tragoponol: Preparation of a highly functionalized resorcylate
Miyatake-Ondozabal, Hideki,Barrett, Anthony G.M.
, p. 4817 - 4820 (2013/09/02)
Studies on the synthesis of racemic tragoponol are described. The western resorcylate unit of tragoponol was efficiently constructed from appropriate diketo-dioxinone and secondary alcohol intermediates using a ketene generation-trapping and aromatization