80902-57-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 80902-57-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,0,9,0 and 2 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 80902-57:
(7*8)+(6*0)+(5*9)+(4*0)+(3*2)+(2*5)+(1*7)=124
124 % 10 = 4
So 80902-57-4 is a valid CAS Registry Number.
80902-57-4Relevant academic research and scientific papers
A NOVEL SYNTHESIS OF THE CARBAPEN-2-EM DERIVATIVES
Hatanaka, Minoru,Yamamoto, Yu-ichi,Nitta, Hajime,Ishimaru, Toshiyasu
, p. 3883 - 3886 (2007/10/02)
A new synthesis of the carbapen-2-em ring system, the basic nucleus of thienamycin and its relatives, is described.
