681179-67-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 681179-67-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,8,1,1,7 and 9 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 681179-67:
(8*6)+(7*8)+(6*1)+(5*1)+(4*7)+(3*9)+(2*6)+(1*7)=189
189 % 10 = 9
So 681179-67-9 is a valid CAS Registry Number.
681179-67-9Relevant academic research and scientific papers
An Efficient Synthesis of Methyl 3-Carboxy-2-oxohexahydroazepine-1-acetate
Griera, Rosa,Huguet, Joan,Bosch, Joan
, p. 323 - 330 (2007/10/03)
The title compound 1 is prepared from ε-caprolactam in a five-step sequence involving N-alkylation of the azepine ring from a 3-(phenylselanyl)-3-(benzyloxycarbonyl) derivative 4 and the generation of the 3-carboxyazepine moiety from the resulting diester
