89988-77-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 89988-77-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,9,9,8 and 8 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 89988-77:
(7*8)+(6*9)+(5*9)+(4*8)+(3*8)+(2*7)+(1*7)=232
232 % 10 = 2
So 89988-77-2 is a valid CAS Registry Number.
89988-77-2Relevant academic research and scientific papers
Heterocyclic ring-analogs of dihydropyridine calcium antagonists
Taylor,Anderson,Badger
, p. 1353 - 1356 (2007/10/02)
An improved synthesis of the 1,4-dihydropyrazine derivative, 3, is described that involves the versatile 1,4-diketointermediate, 9. This intermediate was converted to several heterocyclic ring-analogs of 1,4-dihydropyridine in addition to 3 including deri
