157662-75-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 157662-75-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,7,6,6 and 2 respectively; the second part has 2 digits, 7 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 157662-75:
(8*1)+(7*5)+(6*7)+(5*6)+(4*6)+(3*2)+(2*7)+(1*5)=164
164 % 10 = 4
So 157662-75-4 is a valid CAS Registry Number.
157662-75-4Relevant academic research and scientific papers
The first examples of S(N)Ar-based macrocyclisation: Synthesis of model carboxylate-binding pockets of vancomycin
Beugelmans,Zhu,Husson,Bois-Choussy,Singh
, p. 439 - 440 (2007/10/02)
Model carboxylate-binding pocket C-O-D rings of vancomycin and related glycopeptides were efficiently synthesized by intramolecular S(N)Ar reaction.
