121727-07-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 121727-07-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,1,7,2 and 7 respectively; the second part has 2 digits, 0 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 121727-07:
(8*1)+(7*2)+(6*1)+(5*7)+(4*2)+(3*7)+(2*0)+(1*7)=99
99 % 10 = 9
So 121727-07-9 is a valid CAS Registry Number.
121727-07-9Relevant articles and documents
The Reaction of Ethyl Chromone-2-carboxylates with 1,2-Diaminobenzene
Markees, Diether G.
, p. 29 - 32 (2007/10/02)
Ethyl chromone-2-carboxylate and all its benzoanalogs were prepared and caused to react with 1,2-diaminobenzene to give 2-(2-hydroxybenzoyl)methinyl-3-oxo-1,2,3,4-tetrahydroquinoxaline and its benzo analogs.The condensation products of diethyl oxalate and
