236427-73-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 236427-73-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,3,6,4,2 and 7 respectively; the second part has 2 digits, 7 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 236427-73:
(8*2)+(7*3)+(6*6)+(5*4)+(4*2)+(3*7)+(2*7)+(1*3)=139
139 % 10 = 9
So 236427-73-9 is a valid CAS Registry Number.
236427-73-9Relevant articles and documents
Synthesis of the B,C,D,E,F-ring fragment of pinnatoxins
Sugimoto, Tetsuya,Ishihara, Jun,Murai, Akio
, p. 541 - 544 (2007/10/03)
Construction of the B,C,D,E,F-ring of pinnatoxins is disclosed. Julia coupling reaction between the E,F-ring fragment (C26-C31) as the sulfone and the B,C,D-ring fragment (C10-C25) as the aldehyde proceeded smoo
