107668-57-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 107668-57-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,7,6,6 and 8 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 107668-57:
(8*1)+(7*0)+(6*7)+(5*6)+(4*6)+(3*8)+(2*5)+(1*7)=145
145 % 10 = 5
So 107668-57-5 is a valid CAS Registry Number.
107668-57-5Relevant articles and documents
2-SELENACEPHEMS AND 1-DETHIA-1-SELENAPENEMS
Alpegiani, Marco,Bedeschi, Angelo,Perrone, Ettore,Franceschi, Giovanni
, p. 3041 - 3044 (2007/10/02)
The first selena nuclear analogues of β-lactam antibiotics have been synthesized and compared with their sulphur counterparts.