220709-85-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 220709-85-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,0,7,0 and 9 respectively; the second part has 2 digits, 8 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 220709-85:
(8*2)+(7*2)+(6*0)+(5*7)+(4*0)+(3*9)+(2*8)+(1*5)=113
113 % 10 = 3
So 220709-85-3 is a valid CAS Registry Number.
220709-85-3Relevant articles and documents
Syntheses and characterization of 2-amino-5-aryl-1,3,4-oxadiazoles containing trifluoroethoxy groups
Zhang, Rong,Qian, Xuhong,Li, Zhong
, p. 39 - 43 (1999)
In order to develop an effective synthetic route to 2-amino-5-aryl-1,3,4-oxadiazoles containing trifluoroethoxy groups, a novel intermediate 2-amino-5-[4-(2′,2′,2′-trifluoroethoxy)-phenyl]-1,3,4- oxadiazole was prepared and its structure was confirmed by
