88239-78-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 88239-78-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,8,2,3 and 9 respectively; the second part has 2 digits, 7 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 88239-78:
(7*8)+(6*8)+(5*2)+(4*3)+(3*9)+(2*7)+(1*8)=175
175 % 10 = 5
So 88239-78-5 is a valid CAS Registry Number.
88239-78-5Relevant articles and documents
SYNTHESIS OF 1,2,3,4-TETRAHYDRO-1-BENZAZOCIN-5(6H)-ONES BY DIECKMANN CONDENSATION
Nomura, Keiichi,Suda, Shinji,Takeuchi, Makoto,Adachi, Jun,Masuda, Katsutada
, p. 2051 - 2054 (2007/10/02)
Tetrahydro-1-benzazocin-5(6H)-ones (5,6,8-10) have been conveniently prepared by the Dieckmann condensation of the diester 1 and 3, or the ester nitrile 4 by using sodium-potassium alloy as an effective base.