78023-91-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 78023-91-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,8,0,2 and 3 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 78023-91:
(7*7)+(6*8)+(5*0)+(4*2)+(3*3)+(2*9)+(1*1)=133
133 % 10 = 3
So 78023-91-3 is a valid CAS Registry Number.
78023-91-3Relevant academic research and scientific papers
Depsidone Synthesis. Part 20. Lecideoidin and Dechlorolecideoidin
McEwen, Peter M.,Sargent, Melvyn V.
, p. 883 - 886 (2007/10/02)
The synthesis of methyl 2,9-dichloro-3,8-dihydroxy-1,6-dimethyl-11-oxo-11H-dibenzodioxepin-7-carboxylate (lecideoidin) (1) and methyl 2-chloro-3,8-dihydroxy-1,6-dimethyl-11-oxo-11H-dibenzo-dioxepin-7-carboxylate (dechlorolecideoidin) (
