87506-02-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 87506-02-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,7,5,0 and 6 respectively; the second part has 2 digits, 0 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 87506-02:
(7*8)+(6*7)+(5*5)+(4*0)+(3*6)+(2*0)+(1*2)=143
143 % 10 = 3
So 87506-02-3 is a valid CAS Registry Number.
87506-02-3Relevant articles and documents
Ring Expansion of Succinoin Derivatives. New Synthetic Routes to Cyclopentenones
Nakamura, Eiichi,Shimada, Jun-ichi,Kuwajima, Isao
, p. 498 - 499 (2007/10/02)
Acid-catalysed ring expansion reactions of cyclobutane derivatives bearing a vicinal substituted-diol group give α-aryl and α-vinyl substituted cyclopentenones in good yields.
