745818-77-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 745818-77-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 7,4,5,8,1 and 8 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 745818-77:
(8*7)+(7*4)+(6*5)+(5*8)+(4*1)+(3*8)+(2*7)+(1*7)=203
203 % 10 = 3
So 745818-77-3 is a valid CAS Registry Number.
745818-77-3Relevant articles and documents
Stereoselective synthesis of the C9-C19 lactone-dipropionate fragment of calyculin C
Karisalmi, Kaisa,Koskinen, Ari M.P.
, p. 8245 - 8248 (2007/10/03)
A highly diastereoselective synthesis of the title fragment of calyculin C has been developed based on an internal asymmetric induction between a chiral aldehyde and Z-crotyl trifluorosilane.