436143-81-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 436143-81-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,3,6,1,4 and 3 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 436143-81:
(8*4)+(7*3)+(6*6)+(5*1)+(4*4)+(3*3)+(2*8)+(1*1)=136
136 % 10 = 6
So 436143-81-6 is a valid CAS Registry Number.
436143-81-6Relevant articles and documents
Stereospecific synthesis of cryptophycin 1
Li, Lian-Hai,Tius, Marcus A.
, p. 1637 - 1640 (2007/10/03)
Matrix presented A brief stereospecific synthesis of cryptophycin 1 is described in which (R)-mandelic acid serves as the sole source of asymmetry for unit A. The key step is a hetero-Diels-Alder cycloaddition.
