793673-97-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 793673-97-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 7,9,3,6,7 and 3 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 793673-97:
(8*7)+(7*9)+(6*3)+(5*6)+(4*7)+(3*3)+(2*9)+(1*7)=229
229 % 10 = 9
So 793673-97-9 is a valid CAS Registry Number.
793673-97-9Relevant articles and documents
Synthesis of mono protected 1,10-diaza-18-crown-6
Mandl, Christian P.,Koenig, Burkhard
, p. 3573 - 3578 (2004)
A synthetic procedure for the preparation of unsymmetrically protected 1,10-diaza-18-crown-6 has been elaborated. In contrast to previously published routes, no unprotected 1,10-diaza-18-crown-6 is needed as precursor and cheap bulk chemicals can be used.