Cas 118198-38-2,6-butylthiomethylene-2-methyl-2-(2-oxopropyl)cyclohexanone

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Check Digit Verification of cas no

The CAS Registry Mumber 118198-38-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,8,1,9 and 8 respectively; the second part has 2 digits, 3 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 118198-38:
(8*1)+(7*1)+(6*8)+(5*1)+(4*9)+(3*8)+(2*3)+(1*8)=142
142 % 10 = 2
So 118198-38-2 is a valid CAS Registry Number.

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118198-38-2Relevant academic research and scientific papers

Synthetic Studies on Terpenoid Compounds. Part 14. Total Synthesis of Pyroangolensolide

Tokoroyama, Takashi,Fukuyama, Yoshiyashu,Kotsuji, Yasuhito

, p. 445 - 450 (2007/10/02)

4.8-Dimethyl-1,4,5,6,7,7a-hexahydroinden-2-one (7), obtained by Wichterle annelation of 2,6-dimethylcyclohexanone, was converted into 1-hydroxy-5,8-dimethyl-1,7,8,9-tetrahydro-3H-2-benzopyran-3-one (26).Treatment of compound (26) with 3-lithiofuran afforded pyroangolensolide (1) together with its diastereomer (4).

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