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1217356-27-8

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1217356-27-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1217356-27-8 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,1,7,3,5 and 6 respectively; the second part has 2 digits, 2 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1217356-27:
(9*1)+(8*2)+(7*1)+(6*7)+(5*3)+(4*5)+(3*6)+(2*2)+(1*7)=138
138 % 10 = 8
So 1217356-27-8 is a valid CAS Registry Number.

1217356-27-8Downstream Products

1217356-27-8Relevant articles and documents

An efficient synthesis of pyrido[2,3-d]pyrimidine derivatives in ionic liquid

Shi, Da-Qing,Zhou, Yao,Liu, Hai

experimental part, p. 131 - 135 (2010/04/05)

(Chemical Equation Presented) A series of 5,7-diarylpyrido[2,3-d] pyrimidine-2,4(1H,3H)-diones was synthesized via the reaction of 6-aminopyrimidine-2,4-dione and α,β-unsaturated ketones in ionic liquid without using any catalyst. This protocol has the advantages of easier work-up, milder reaction conditions, high yields, and environmentally benign procedure over traditional methods.

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