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850227-76-8

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850227-76-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 850227-76-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,5,0,2,2 and 7 respectively; the second part has 2 digits, 7 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 850227-76:
(8*8)+(7*5)+(6*0)+(5*2)+(4*2)+(3*7)+(2*7)+(1*6)=158
158 % 10 = 8
So 850227-76-8 is a valid CAS Registry Number.

850227-76-8Upstream product

850227-76-8Relevant articles and documents

Isolation of cis-isomers from isomeric mixtures of cis/transcyclopropanecarboxylates

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, (2008/06/13)

The treatment of isomeric mixtures of cis/trans -3-(2,2-dihalo-3,3,3-trifluoropropyl)-2,2-dimethylcyclopropanecarboxylic acid esters with excess base at elevated temperatures hydrolyzes the ester, dehydrohalogenates the side chain, and thereafter selectively converts the resulting unsaturated side chain of the corresponding trans-cyclopropanecarboxylic acid to an acetyl byproduct, from which may be readily separated and recovered an enriched concentration of the desired cis-2-halo-1-propenylcyclopropanecarboxylic acid, together with minor amounts of the corresponding transacid.

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