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141924-02-9

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141924-02-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 141924-02-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,1,9,2 and 4 respectively; the second part has 2 digits, 0 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 141924-02:
(8*1)+(7*4)+(6*1)+(5*9)+(4*2)+(3*4)+(2*0)+(1*2)=109
109 % 10 = 9
So 141924-02-9 is a valid CAS Registry Number.

141924-02-9Downstream Products

141924-02-9Relevant articles and documents

Reaction of N-Substituted Cyclic Amines with 2,4-Dichloroquinazoline, 2,4-Dichloropyrimidine, and its 5-Methyl Derivative

Yoshida, Kenji,Taguchi, Masahiro

, p. 919 - 922 (2007/10/02)

The reaction of N-substituted cyclic amines with 2,4-dichloroquinazoline 2 and 2,4-dichloro-5-methyl-pyrimidine 3b afforded 2-amino-4-chloroquinazolines and 2-amino-4-chloro-5-methylpyrimidines, respectively.However, the reaction of these amines with 2,4-dichloropyrimidine 3a afforded not only 2-amino-4-chloropyrimidines but also the isomeric 4-amino-2-chloropyrimidines.The regioselectivity of these reactions was considered to be determined by the steric nature of substrates 2, 3a and 3b.

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