928209-81-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 928209-81-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,2,8,2,0 and 9 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 928209-81:
(8*9)+(7*2)+(6*8)+(5*2)+(4*0)+(3*9)+(2*8)+(1*1)=188
188 % 10 = 8
So 928209-81-8 is a valid CAS Registry Number.
928209-81-8Relevant articles and documents
Stereogenic evolution of clasto-lactacystin β-lactone from L-serine
Yoon, Cheol H.,Flanigan, David L.,Yoo, Kyung S.,Jung, Kyung W.
, p. 37 - 39 (2007/10/03)
Reported herein is a novel synthesis of clasto-lactacystin β-lactone. The γ-lactam core was selectively prepared by an intramolecular C-H insertion to establish the stereocenter, C(6). The ensuing construction of the quaternary C(5) and carbinol C(9) cent
