1242140-77-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1242140-77-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,4,2,1,4 and 0 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1242140-77:
(9*1)+(8*2)+(7*4)+(6*2)+(5*1)+(4*4)+(3*0)+(2*7)+(1*7)=107
107 % 10 = 7
So 1242140-77-7 is a valid CAS Registry Number.
1242140-77-7Relevant articles and documents
Total synthesis and structural revision of biyouyanagin B
Nicolaou,Sanchini, Silvano,Wu, T. Robert,Sarlah, David
supporting information; experimental part, p. 7678 - 7682 (2010/09/05)
Figure Presented An intriguing chase of the newly reported biyouyanagin B leads to its total synthesis and structural revision from 1' to 1.
