1373349-53-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1373349-53-1 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,7,3,3,4 and 9 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1373349-53:
(9*1)+(8*3)+(7*7)+(6*3)+(5*3)+(4*4)+(3*9)+(2*5)+(1*3)=171
171 % 10 = 1
So 1373349-53-1 is a valid CAS Registry Number.
1373349-53-1Relevant articles and documents
A one-step synthesis of tricyclic pyrimidines
Bauer, Mirko,Spange, Stefan
experimental part, p. 38 - 48 (2012/03/12)
The reaction of triflic anhydride activated carbonyl compounds with 5-phenylbarbituric acids in a mild, non-catalyzed one-step procedure yields unusual tricyclic pyrano[2,3-d]pyrimidines or oxazolo[3,2-c]pyrimidines containing an ADA hydrogen bond pattern