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22518-01-0

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22518-01-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 22518-01-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,2,5,1 and 8 respectively; the second part has 2 digits, 0 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 22518-01:
(7*2)+(6*2)+(5*5)+(4*1)+(3*8)+(2*0)+(1*1)=80
80 % 10 = 0
So 22518-01-0 is a valid CAS Registry Number.

22518-01-0Downstream Products

22518-01-0Relevant articles and documents

Synthesis of Two Naturally Ocurring Isobutyrates Related to Thymol

Sanghvi, Y. S.,Rao, A. S.

, p. 952 - 954 (2007/10/02)

7-Acetoxymethylcoumarin (15), prepared by heating 7-bromomethyl-4-methylcoumarin (14) with sodium acetate and acetic acid, on heating with NaOH-ethylene glycol, furnishes 3-hydroxy-4-isopropylbenzyl alcohol (3).Compound (3) has been transformed into diisobutyrate (1) of 3-hydroxy-4-isopropylbenzyl alcohol.Selective methylation of 3 furnishes 4-isopropyl-3-methoxybenzyl alcohol (5), an intermediate for the synthesis of sempervirol.Acylation of 5 gives the naturally ocurring 4-isopropyl-3-methoxybenzyl isobutyrate (2). 4,7-Dimethylcoumarin affords o-isopropenylphenol (7) when heated with aq.NaOH at 140 deg C, but if the reaction is carried out at 210 deg C the product formed is m-cresol (17).

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