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124337-51-5

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124337-51-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 124337-51-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,4,3,3 and 7 respectively; the second part has 2 digits, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 124337-51:
(8*1)+(7*2)+(6*4)+(5*3)+(4*3)+(3*7)+(2*5)+(1*1)=105
105 % 10 = 5
So 124337-51-5 is a valid CAS Registry Number.

124337-51-5Relevant articles and documents

Synthesis of 5,6-Dihydro-4H-pyrido[3,2,1-jk]carbazole via intermolecular [4+2] cycloaddition

Katritzky, Alan R.,Zhang, Guifen,Qi, Ming,Xie, Linghong

, p. 6959 - 6960 (2007/10/03)

4-, 4,5- and 4,6-Substituted 5,6-dihydro-4H-pyrido[3,2,1-jk]carbazole are synthesized regioselectively from carbazole by a novel, two step sequence.

Preparation, Lithiation and Transformation of N-(Benzotriazol-1-ylmethyl) Heterocycles

Katritzky, Alan R.,Drewniak-Deyrup, Malgorzata,Lan, Xiangfu,Brunner, Frederic

, p. 829 - 836 (2007/10/02)

Indole, carbazole, pyrrole, imidazole, benzimidazole, 2-methyl- and 2-phenylbenzimidazole, and 1,2,4-triazole have each been converted into their N-(benzotriazol-1-ylmethyl) derivatives.The pyrrole, indole, and carbazole adducts undergo smooth lithiation

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