Cas 134835-35-1,4-Methyl-2-p-tolyloxy-pent-4-enoic acid methyl ester

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Check Digit Verification of cas no

The CAS Registry Mumber 134835-35-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,4,8,3 and 5 respectively; the second part has 2 digits, 3 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 134835-35:
(8*1)+(7*3)+(6*4)+(5*8)+(4*3)+(3*5)+(2*3)+(1*5)=131
131 % 10 = 1
So 134835-35-1 is a valid CAS Registry Number.

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134835-35-1Relevant academic research and scientific papers

Synthesis of methyl 2-aryloxy-4-methyl-4-pentenoates and 2-aryloxy-4-methyl-4-pentenals

Fechtel,Westphal,Ruger,Matschiner

, p. 399 - 401 (1991)

A convenient procedure for the preparation of the title compounds from 1,1,1-trichloro-4-methyl-4-penten-2-ol (1) and 1,1-dichloro-4-methyl-4-penten-2-ol (8), respectively, by treatment with unsubstituted and substituted sodium phenolates 5 is described.

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