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39667-10-2

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39667-10-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 39667-10-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,9,6,6 and 7 respectively; the second part has 2 digits, 1 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 39667-10:
(7*3)+(6*9)+(5*6)+(4*6)+(3*7)+(2*1)+(1*0)=152
152 % 10 = 2
So 39667-10-2 is a valid CAS Registry Number.

39667-10-2Relevant articles and documents

2,4-Diamino-5-benzylpyrimidines and analogues as antibacterial agents. II. C-alkylation of pyrimidines with Mannich bases and application to the synthesis of trimethoprim and analogues

Roth,Strelitz,Rauckmann

, p. 379 - 384 (1980)

A new route to 5-(p-hydroxybenzyl)pyrimidines has been developed which utilizes phenolic Mannich bases plus pyrimidines containing at least two activating groups. The products can be alkylated on the phenolic oxygen or on the pyrimidine N-1 atom, depending on conditions. This method has been used to prepare trimethoprim, a broad-spectrum antibacterial agent, starting from 2,4-diaminopyrimidine and 2,6-dimethoxyphenol.

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