80903-51-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 80903-51-1 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 3 respectively; the second part has 2 digits, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 80903-51:
(7*8)+(6*0)+(5*9)+(4*0)+(3*3)+(2*5)+(1*1)=121
121 % 10 = 1
So 80903-51-1 is a valid CAS Registry Number.
80903-51-1Relevant academic research and scientific papers
VERSATILE CHEMICAL MODIFICATION OF THE C-2 SIDE CHAIN OF CARBAPENEM ANTIBIOTICS
Yamamoto, Ken-ichi,Yoshioka, Takeo,Kato, Yasuyuki,Isshiki, Kunio,Nishino, Masayoshi,et al.
, p. 897 - 900 (2007/10/02)
Substitution of the C-2 side chain of carbapenem antibiotics with various types of sulfenyl groups was effected via carbapenem S-oxides by two ways.
