155304-03-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 155304-03-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,5,3,0 and 4 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 155304-03:
(8*1)+(7*5)+(6*5)+(5*3)+(4*0)+(3*4)+(2*0)+(1*3)=103
103 % 10 = 3
So 155304-03-3 is a valid CAS Registry Number.
155304-03-3Relevant articles and documents
Synthesis of 2(3H)-imidazolethiones and 2(3H)-imidazolones from β,γ-alkynyl carbanilides
Devan, Balachari,Rajagopalan, Krishnamoorthy
, p. 1585 - 1586 (2007/10/02)
β,γ-Acetylenic carbanilides cyclize and subsequently isomerize to 2(3H)-imidazolethiones and 2(3H)-imidazolones upon treatment with ammoniacal H2S and KOH in t-BuOH respectively.