137298-90-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 137298-90-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,7,2,9 and 8 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 137298-90:
(8*1)+(7*3)+(6*7)+(5*2)+(4*9)+(3*8)+(2*9)+(1*0)=159
159 % 10 = 9
So 137298-90-9 is a valid CAS Registry Number.
137298-90-9Relevant academic research and scientific papers
Synthetic studies towards the immunosuppressant FK-506 synthesis of the C10-C34 fragment
Wang, Zhaoyin
, p. 4631 - 4634 (2007/10/02)
The synthesis of the cyclohexyl moiety of FK-506 and its coupling reaction with the C10-C26 fragment to provide an advanced synthetic intermediate(C10-C34) are described.
