349637-87-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 349637-87-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,4,9,6,3 and 7 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 349637-87:
(8*3)+(7*4)+(6*9)+(5*6)+(4*3)+(3*7)+(2*8)+(1*7)=192
192 % 10 = 2
So 349637-87-2 is a valid CAS Registry Number.
349637-87-2Relevant articles and documents
Synthesis of some new 2-arylthieno[2,3-d]pyrimidin-4(3H)-one derivatives
Davoodnia, Abolghasem,Eshghi, Hossein,Salavaty, Akram,Tavakoli-Hoseini, Niloofar
, p. 1 - 2 (2008/09/19)
Some new derivatives of 2-arylthieno[2,3-d]pyrimidin-4(3H)-ones have been prepared through a condensation reaction of 2-amino-4,5-dimethylthiophene-3- carboxamide with aroyl halides in boiling pyridine followed by cyclisation with 10% NaOH.
