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17503-90-1

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17503-90-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 17503-90-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,7,5,0 and 3 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 17503-90:
(7*1)+(6*7)+(5*5)+(4*0)+(3*3)+(2*9)+(1*0)=101
101 % 10 = 1
So 17503-90-1 is a valid CAS Registry Number.

17503-90-1Downstream Products

17503-90-1Relevant articles and documents

A novel and efficient domino reaction for the one-pot synthesis of spiro-2-aminopyrimidinones

Ramezanpour, Sorour,Hashtroudi, Mehri Seyed,Bijanzadeh, Hamid Reza,Balalaie, Saeed

, p. 3980 - 3982 (2008)

A novel and efficient protocol is developed for the synthesis of various spiro-2-amino pyrimidinones via the three-component condensation of alkyl cyanoacetates, guanidinium carbonate and N-substituted 4-piperidinones in ethanol at reflux. High yields, neutral conditions, and short reaction times are advantages of this method.

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