157331-12-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 157331-12-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,7,3,3 and 1 respectively; the second part has 2 digits, 1 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 157331-12:
(8*1)+(7*5)+(6*7)+(5*3)+(4*3)+(3*1)+(2*1)+(1*2)=119
119 % 10 = 9
So 157331-12-9 is a valid CAS Registry Number.
157331-12-9Relevant academic research and scientific papers
Calix Salophen Crown Ethers as Receptors for Neutral Molecules
Reichwein, Arjen M.,Verboom, Willem,Harkema, Sybolt,Spek, Anthony L.,Reinhoudt, David N.
, p. 1167 - 1172 (2007/10/02)
The calixarene based salophen crown ethers 7 and 8 were synthesized as lipophilic carriers for neutral molecules.The X-ray structures of the H2O, CH3OH and (CH3)2SO complexes of 8a have been determined.
