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111831-51-7

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111831-51-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 111831-51-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,1,8,3 and 1 respectively; the second part has 2 digits, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 111831-51:
(8*1)+(7*1)+(6*1)+(5*8)+(4*3)+(3*1)+(2*5)+(1*1)=87
87 % 10 = 7
So 111831-51-7 is a valid CAS Registry Number.

111831-51-7Downstream Products

111831-51-7Relevant articles and documents

Synthesis of 2,6,10,14-Tetramethylpentadec-2-ene Using p-Toluenesulphonylacetic Esters

Salunkhe, A. M.,Phadke, A. S.,Kulkarni, Sheshgiri N.

, p. 1172 - 1173 (2007/10/02)

The title compound (VIII) has been prepared by successive alkylation of p-toluenesulphonylacetic esters (Ia,b) with dihydrocitronellyl bromide (II) and methylheptenyl iodide (IV) followed by decarbomethoxylation and desulphonation.

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