103025-55-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 103025-55-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,3,0,2 and 5 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 103025-55:
(8*1)+(7*0)+(6*3)+(5*0)+(4*2)+(3*5)+(2*5)+(1*5)=64
64 % 10 = 4
So 103025-55-4 is a valid CAS Registry Number.
103025-55-4Relevant articles and documents
Reaction of 2-Amino-2-cyclopenten-1-one Derivatives and p-Benzoquinone
Kucklaender, Uwe,Schneider, Bettina
, p. 3487 - 3491 (2007/10/02)
α-Ketoenamines 3a and b react with p-benzoquinone (2) to yield benzoxazepine derivatives 5 and 6.Intermediate 7a is isolated and transformed to 5b.The course of the reaction is discussed.