89817-13-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 89817-13-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,9,8,1 and 7 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 89817-13:
(7*8)+(6*9)+(5*8)+(4*1)+(3*7)+(2*1)+(1*3)=180
180 % 10 = 0
So 89817-13-0 is a valid CAS Registry Number.
89817-13-0Relevant articles and documents
1a,11b-Dihydrobenzanthrazirine. A non K-Region Polycylic Arene Imine
Blum. Jochanan,Ben-Shoshan, Shoshanna
, p. 1461 - 1464 (2007/10/02)
The synthesis of the title compound is described.Benzanthracene 8,9-oxide (6) was reacted with sodium azide in aqueous acetone and the trans-9-azido-8,9-dihydrobenzanthr-8-ol (7), so formed, was cyclized by tri-n-butylphosphine.Attempts to dehydroge
