659749-65-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 659749-65-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,5,9,7,4 and 9 respectively; the second part has 2 digits, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 659749-65:
(8*6)+(7*5)+(6*9)+(5*7)+(4*4)+(3*9)+(2*6)+(1*5)=232
232 % 10 = 2
So 659749-65-2 is a valid CAS Registry Number.
659749-65-2Relevant academic research and scientific papers
Convenient synthesis of optically active α-hydroxyphosphinic acids
Cai, Juexiao,Zhou, Zhenghong,Zhao, Guofeng,Tang, Chuchi
, p. 312 - 315 (2007/10/03)
The reaction of O-menthyl phenylphosphonite 1 with aromatic aldehydes in the presence of Me3SiCl provided the O-menthyl α-hydroxy-phosphinates 2. Acidic hydrolysis of 2 gave the corresponding α-hydroxyphosphinic acids 3. The (+)-enantiomer of 3
