138890-25-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 138890-25-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,8,8,9 and 0 respectively; the second part has 2 digits, 2 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 138890-25:
(8*1)+(7*3)+(6*8)+(5*8)+(4*9)+(3*0)+(2*2)+(1*5)=162
162 % 10 = 2
So 138890-25-2 is a valid CAS Registry Number.
138890-25-2Relevant academic research and scientific papers
Total Synthesis of (+)-Monomorine I via Nitrone Cycloaddition Route
Ito, Masayuki,Kibayashi, Chihiro
, p. 9329 - 9350 (2007/10/02)
An enantioselective total synthesis of (+)-monomorine I (1) is described.The key feature of the synthesis is the asymmetric 1,3-dipolar cycloaddition of the prochiral nitrone 9 with the chiral (S)-allylic ether 8 as a dipolarophile, which provides stereos
