208581-47-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 208581-47-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,8,5,8 and 1 respectively; the second part has 2 digits, 4 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 208581-47:
(8*2)+(7*0)+(6*8)+(5*5)+(4*8)+(3*1)+(2*4)+(1*7)=139
139 % 10 = 9
So 208581-47-9 is a valid CAS Registry Number.
208581-47-9Relevant articles and documents
A short enantioselective synthesis of a component of cryptophycin A and arenastatin A
Furuyama, Masaaki,Shimizu, Isao
, p. 1351 - 1357 (2007/10/03)
Synthesis of 1, a component of cryptophycin A 2 and arenastatin A 3, was achieved by applying palladium-catalyzed reductive ring opening of optically active alkenyl oxirane 13 for the construction of the vicinal stereogenic centers.
