84731-33-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 84731-33-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,4,7,3 and 1 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 84731-33:
(7*8)+(6*4)+(5*7)+(4*3)+(3*1)+(2*3)+(1*3)=139
139 % 10 = 9
So 84731-33-9 is a valid CAS Registry Number.
84731-33-9Relevant academic research and scientific papers
Macdonald, Timothy L.,Narayanan, B. A.
, p. 1129 - 1131 (1983)
Synthesis of the Δ1,2-unsaturated pyrrolizidine alkaloid supinidine proceeding via regioselective N1-C2 vicinal annulation of a 1,3-dihaloalkane onto a 3-(hydroxymethyl)-3-pyrroline system is described.
