66904-39-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 66904-39-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,6,9,0 and 4 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 66904-39:
(7*6)+(6*6)+(5*9)+(4*0)+(3*4)+(2*3)+(1*9)=150
150 % 10 = 0
So 66904-39-0 is a valid CAS Registry Number.
66904-39-0Relevant articles and documents
A convenient synthesis of alkyl heteroarylpyruvates
Zupet,Tisler
, p. 2245 - 2251 (2007/10/02)
Several ethyl heteroarylpyruvates were obtained by condensation of the corresponding methyl substituted azines or azoles with diethyl oxalate and in the presence of potassium tert-butoxide. The obtained compounds exist exclusively or predominantly in the enol form.