128398-51-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 128398-51-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,8,3,9 and 8 respectively; the second part has 2 digits, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 128398-51:
(8*1)+(7*2)+(6*8)+(5*3)+(4*9)+(3*8)+(2*5)+(1*1)=156
156 % 10 = 6
So 128398-51-6 is a valid CAS Registry Number.
128398-51-6Relevant academic research and scientific papers
Pyranoazepine, a new heterocyclic system. A new approach to pyridoazepines
Kocevar, Marijan,Polanc, Slovenko,Tisler, Miha,Vercek, Bojan
, p. 227 - 230 (2007/10/02)
3-Benzoylamino-7,7-dimethyl-5-oxo-5,6,7,8-tetrahydrocoumarin (1a) was used as a synthon in the preparation of the first derivatives of the pyranoazepine system 2 and in two approaches to pyridoazepines 4.
