85570-69-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 85570-69-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,5,5,7 and 0 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 85570-69:
(7*8)+(6*5)+(5*5)+(4*7)+(3*0)+(2*6)+(1*9)=160
160 % 10 = 0
So 85570-69-0 is a valid CAS Registry Number.
85570-69-0Relevant academic research and scientific papers
TOTAL SYNTHESIS OF CATALPALACTONE
Marx, John N.,Dobrowolski, Paul J.
, p. 4457 - 4460 (2007/10/02)
The first synthesis of catalpalactone (1) is reported.The key steps are the coupling of the selenenylated lactone 8 with bromophthalide (9) and the selenoxide elimination of 14 to give catalpalactone with very high regioselectivity.
