1402905-99-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1402905-99-0 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,0,2,9,0 and 5 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1402905-99:
(9*1)+(8*4)+(7*0)+(6*2)+(5*9)+(4*0)+(3*5)+(2*9)+(1*9)=140
140 % 10 = 0
So 1402905-99-0 is a valid CAS Registry Number.
1402905-99-0Relevant articles and documents
Synthesis of 5-cinnamoyl-3,4-dihydropyrimidine-2(1H)-ones
Kolosov, Maksim A.,Kulyk, Olesia G.,Shvets, Elena H.,Orlov, Valeriy D.
, p. 1649 - 1657 (2014)
Two different approaches to the synthesis of 1-unsubstituted 5-cinnamoyl-3,4-dihydropyrimidine-2(1H)-ones have been developed. The first includes N(1)-protection of the starting 5-acetyl-3,4-dihydropyrimidine-2(1H)- one, further Claisen-Schmidt reaction,