188404-13-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 188404-13-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,8,4,0 and 4 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 188404-13:
(8*1)+(7*8)+(6*8)+(5*4)+(4*0)+(3*4)+(2*1)+(1*3)=149
149 % 10 = 9
So 188404-13-9 is a valid CAS Registry Number.
188404-13-9Relevant academic research and scientific papers
Synthesis of Edatrexate (2-13C-glutamate)
DeGraw, Joseph I.,Colwell, William T.,Jue, Thomas
, p. 99 - 103 (2007/10/03)
The experimental antitumor drug Edatrexate, labeled with 99% 13C at the 2-position of the glutamate acid group was required for 13C-magnetic resonance spectroscopy studies in biological media. Coupling of 2,4-diamino-4-deoxy-10-ethyl
