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336181-49-8

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336181-49-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 336181-49-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,3,6,1,8 and 1 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 336181-49:
(8*3)+(7*3)+(6*6)+(5*1)+(4*8)+(3*1)+(2*4)+(1*9)=138
138 % 10 = 8
So 336181-49-8 is a valid CAS Registry Number.

336181-49-8Relevant articles and documents

Synthesis and spectral properties of a variety of 2-styrylbenzimidazoles

Ramaiah,Dubey,Eswara Rao,Ramanatham,Kumar,Grossert,Hooper

, p. 904 - 914 (2007/10/03)

Studies on the synthesis of various 2-styrylbenzimidazoles 3, 7 and N-methylated 2-styrylbenzimidazoles 5, 9 from 2-methyl/ethyl benzimidazoles 2, 6 and 1,2-dimethyl/1-methyl-2-ethylbenzimidazoles 4, 8 respectively by condensation with different aromatic aldehydes are described. The spectral characteristics of 2-styrylbenzimidazoles and N-methylated-2-styrylbenzimidazoles are discussed. An efficient and convenient phase-transfer catalysed methylation procedure for the synthesis of N-methylated-2-styrylbenzimidazoles from 2-styrylbenzimidazoles is reported.

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