77346-71-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 77346-71-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,3,4 and 6 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 77346-71:
(7*7)+(6*7)+(5*3)+(4*4)+(3*6)+(2*7)+(1*1)=155
155 % 10 = 5
So 77346-71-5 is a valid CAS Registry Number.
77346-71-5Relevant academic research and scientific papers
Synthese von zwei aus Compositen isolierten Chromanon-Derivaten
Bohlmann, Ferdinand,Vorwerk, Edgar
, p. 147 - 152 (2007/10/02)
Starting with 6-acetyl-2,2-dimethylchromene (6) as well as with 2,4-diacetylphenol (2) the naturally occuring chromanone derivative 4 was synthesized.The triketone 18 could be built up only by transformation of an ethyl group in 14 into the required acety
