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5176-98-7

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5176-98-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 5176-98-7 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 5,1,7 and 6 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 5176-98:
(6*5)+(5*1)+(4*7)+(3*6)+(2*9)+(1*8)=107
107 % 10 = 7
So 5176-98-7 is a valid CAS Registry Number.

5176-98-7Downstream Products

5176-98-7Relevant articles and documents

One-pot two-step solvent-free rapid and clean synthesis of 2-(substituted amino)pyrimidines by microwave irradiation

Goswami, Shyamaprosad,Hazra, Anita,Jana, Subrata

experimental part, p. 1175 - 1181 (2009/12/25)

abs A series of diversely 2-(substituted amino)pyrimidines (along with ring substitution) has been synthesized under solvent- and catalyst-free microwave conditions from substituted guanidines and β-diketones. The substituted guanidines are synthesized from (S)-methylisothiourea sulfate and different amines (various alkyl, aryl, or heterocyclic and also chiral amines) under microwave irradiation. These two-step reactions are performed in one-pot without isolating any intermediate. This protocol has been successfully applied for the synthesis of bisaminopyrimidines and 2-substituted aminopyrimidines containing chiral moiety where chirality remains undisturbed.

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