81659-74-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 81659-74-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,6,5 and 9 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 81659-74:
(7*8)+(6*1)+(5*6)+(4*5)+(3*9)+(2*7)+(1*4)=157
157 % 10 = 7
So 81659-74-7 is a valid CAS Registry Number.
81659-74-7Relevant academic research and scientific papers
Noguchi, Noriyoshi,Kuroda, Tsuyoshi,Hatanaka, Minoru,Ishimaru, Toshiyasu
, p. 633 - 634 (1982)
The title compounds have been synthesized from N-protected L-aspartic acid via Curtis rearrangement.