721896-61-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 721896-61-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 7,2,1,8,9 and 6 respectively; the second part has 2 digits, 6 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 721896-61:
(8*7)+(7*2)+(6*1)+(5*8)+(4*9)+(3*6)+(2*6)+(1*1)=183
183 % 10 = 3
So 721896-61-3 is a valid CAS Registry Number.
721896-61-3Relevant academic research and scientific papers
2-R-6-ethyl-7-hydroxy-3-(5-phenyl-1,3,4-thiadiazolyl-2)chromones
Shokol,Semenyuchenko,Khilya
, p. 1588 - 1594 (2007/10/03)
α-(5-Phenyl-1,3,4-thiadiazolyl-2)-6-ethyl-2,4-dihydroxyacetophenone was synthesized by the condensation of 4-ethylresorcinol with 2-cyanomethyl-5-phenyl-1,3,4-thiadiazole. Interaction of the former with carboxylic acid anhydrides and halides and subsequen
