740059-56-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 740059-56-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 7,4,0,0,5 and 9 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 740059-56:
(8*7)+(7*4)+(6*0)+(5*0)+(4*5)+(3*9)+(2*5)+(1*6)=147
147 % 10 = 7
So 740059-56-7 is a valid CAS Registry Number.
740059-56-7Relevant articles and documents
Synthesis of C2-symmetric HIV-protease inhibitors with sulfur-containing central units
Spaltenstein,Leban,Furfine
, p. 1457 - 1460 (2007/10/02)
Sulfide-, sulfoxide-, and sulfone- containing C2-symmetric peptide analogs were obtained stereospecifically starting from phenylalanine. The compounds were evaluated as potential HIV-protease inhibitors and found to be inactive within the limit