7421-62-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 7421-62-7 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 7,4,2 and 1 respectively; the second part has 2 digits, 6 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 7421-62:
(6*7)+(5*4)+(4*2)+(3*1)+(2*6)+(1*2)=87
87 % 10 = 7
So 7421-62-7 is a valid CAS Registry Number.
7421-62-7Relevant articles and documents
Reaction of furan-2(3H)-ones with 1,2-binucleophiles
Amal'chieva,Egorova
, p. 1340 - 1343 (2007/10/03)
Reactions of 5-substituted furan-2(3H)-ones with ethylenediamine, 2-aminoethanol, and o-aminophenol do not stop at the stage of formation of the corresponding 4-oxoalkanoic acid amides but lead to new bi-and tricyclic structures as a result of double intr
