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82619-55-4

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82619-55-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 82619-55-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,2,6,1 and 9 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 82619-55:
(7*8)+(6*2)+(5*6)+(4*1)+(3*9)+(2*5)+(1*5)=144
144 % 10 = 4
So 82619-55-4 is a valid CAS Registry Number.

82619-55-4Relevant articles and documents

On the Reactivity of N-Benzylpyrimidinium Salts with Nitrogen Nucleophiles (1,2)

Dlugosz, A.,van der Plas, H.C.,van Veldhuizen, A.

, p. 373 - 375 (2007/10/02)

Treatment of the 1-benzyl salts of pyrimidine, 4,6-dimethylpyrimidine, and 4-t-butylpyrimidine with liquid ammonia leads to debenzylation.The 1H-nmr spectroscopic evidence is presented that the initial step in the debenzylation of 1-benzyl-4,6-dimethylpyrimidinium bromide is the addition of the ammonia at C-2, while with 1-benzyl-4-t-butylpyrimidinium bromide the addition takes place at C-6.It is proved by 15N labelling that the debenzylation occurs according to the ANRORC mechanism.The above-mentioned 1-benzylpyrimidinium bromides give with hydrazine, pyrazole, 3,5-dimethylpyrazole and 3-t-butylpyrazole, respectively.

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