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81866-55-9

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81866-55-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 81866-55-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,8,6 and 6 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 81866-55:
(7*8)+(6*1)+(5*8)+(4*6)+(3*6)+(2*5)+(1*5)=159
159 % 10 = 9
So 81866-55-9 is a valid CAS Registry Number.

81866-55-9Downstream Products

81866-55-9Relevant articles and documents

Process for the preparation of di- and poly-allyl ethers

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, (2008/06/13)

A process for the preparation of allyl ethers of the formula in which R and n are as defined in claim 1, by reacting hydroxy compounds of the formula with allyl chloride or allyl bromide by phase transfer catalysis, 0.8 to 5 mols of allyl chloride or allyl bromide, 1 to 6 mols of aqueous or solid sodium hydroxide and, as the phase transfer catalyst, 2 to 20 mol % of a quaternary ammonium salt, a quaternary ammonium base or a crown ether being employed per hydroxyl equivalent of the compound of the formula II, and the reaction being carried out in the temperature range from 20° to 100° C.

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