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134340-12-8

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134340-12-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 134340-12-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,4,3,4 and 0 respectively; the second part has 2 digits, 1 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 134340-12:
(8*1)+(7*3)+(6*4)+(5*3)+(4*4)+(3*0)+(2*1)+(1*2)=88
88 % 10 = 8
So 134340-12-8 is a valid CAS Registry Number.

134340-12-8Relevant articles and documents

Preparation of Heteroaryl Phenylmethanes and a 13C and 15N NMR Spectroscopic Study of their Conjugate Carbanions. Rotational Isomerism and Charge Maps of the Anions and Ranking of the Charge Demands of the Heterocycles

Abbotto, Alessandro,Alanzo, Vito,Bradamante, Silvia,Pagani, Giorgio A.

, p. 481 - 488 (2007/10/02)

2-Benzylpyridazine, 4-benzylpyrimidine, 2-benzylpyrimidine and 2-benzylpyrazine, (5-8) have been prepared in order to study their 13C and 15N spectra and those of their conjugate carbanions (1-4).These systems are aza-homologues of the previously reported

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