Cas 66607-50-9,5,6-dimethyl-2-(phenylamino)-thieno[2,3-d]pyrimidin-4(3H)-one

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Check Digit Verification of cas no

The CAS Registry Mumber 66607-50-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,6,6,0 and 7 respectively; the second part has 2 digits, 5 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 66607-50:
(7*6)+(6*6)+(5*6)+(4*0)+(3*7)+(2*5)+(1*0)=139
139 % 10 = 9
So 66607-50-9 is a valid CAS Registry Number.

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66607-50-9Relevant academic research and scientific papers

Investigation into the reaction of 2-amino- 4,5-dimethylthiophene-3- carboxamide with iso(and Isothio)cyanates under microwave irradiation

Davoodnia, Abolghasem,Rahimizadeh, Mohammad,Atapour-Mashhad, Hoda,Tavakoli-Hoseini, Niloofar

, p. 346 - 349 (2009)

The reaction of 2-amino-4,5-dimethyl-thiophene-3-carboxamide with iso(and isothio) cyanates for the synthesis ofthieno[2,3-d]pyrimidines has been investigated. The reactions under microwave irradiation in the presence of N,N-dimethyl acetamide as solvent

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